If you understand what an IRS Revenue Agent does on paper, you understand half of an examination. The other half — the half that determines outcomes — is how they think. The mental model an agent brings to a case shapes which issues get developed, which positions get pushed, which compromises get accepted, and ultimately whether your audit closes for $0, for the full proposed adjustment, or somewhere in between.

This is the IRS audit playbook from inside. Not the procedural manual published in the Internal Revenue Manual — that document is publicly available — but the working mental framework that experienced Revenue Agents actually use as they prioritize cases, identify issues, and make the dozens of small decisions that aggregate into an examination’s outcome.

This article is informed by Kugelman Law attorney Otto Bosch, who served as a Revenue Agent in the IRS Global High Wealth Group within the Large Business and International (LB&I) Division before joining the firm in February 2026. For an introduction to what Revenue Agents formally do and how examinations are structured, see our companion piece on what an IRS Revenue Agent does. The article below picks up where that one leaves off — focused not on the structure of an audit but on the thinking behind it.

How Returns Get on the Radar in the First Place

Most taxpayers imagine return selection as a uniform process. In practice, it is a triage. The IRS receives more than 150 million individual returns each year, and the examination function can pursue only a small fraction of them. Every return that reaches a Revenue Agent’s desk has survived multiple rounds of selection — which means by the time the examination opens, someone in the IRS has already decided this return is worth investing real resources in.

That triage happens through several mechanisms — DIF scoring, related-return pickups, information matching, project initiatives, and others — which we covered in detail in our prior article. What matters for understanding the playbook is the agent’s mindset when a case is assigned: the agent assumes there is something to find. The selection process is statistical, not certain — but it is good enough that experienced agents do not approach examinations as fishing expeditions. They approach them as recovery operations: the system has flagged something, and the agent’s job is to figure out what.

This default assumption matters defensively. Many taxpayer responses during an audit are calibrated to “look cooperative” or “explain things,” on the assumption that the agent is starting from neutral. The agent is not starting from neutral. The agent is starting from “the system thinks something is here.” Responses calibrated to that posture are different from responses calibrated to a neutral counterparty.

How a Revenue Agent Builds a Case from Suspicion to Adjustment

An audit, viewed from the agent’s seat, is not a single inquiry. It is a layered case-building exercise. Each layer corresponds to a different mental task.

Stage 1: Pre-Contact Intuition

Before the agent ever issues a notice, they have read the return, the notes from selection, prior-year filings, and any third-party data already in IRS systems. They have formed a working hypothesis about what the case is — and a working list of issues they expect to develop. Experienced agents are usually right about the rough shape of the case before the first IDR ever leaves their desk.

What the taxpayer sees as the “first contact” is, from the agent’s perspective, the third or fourth phase of the case. Defense strategies that treat the opening conference as the start of the audit are already a step behind.

Stage 2: Issue Identification Through Documents

The first Information Document Request (IDR) is the agent’s tool for confirming or refuting the pre-contact hypothesis. They are not asking for documents because they want to read receipts. They are asking because they want to see whether reality matches their hypothesis — and where reality does not match, they want to see where the gaps are.

Experienced agents read taxpayer responses for three signals: what was produced, what was conspicuously absent, and what the production reveals about how the taxpayer keeps records. A neat, well-organized response signals a sophisticated taxpayer (and probably a careful preparer). A messy, partial, or contradictory response signals issues that are likely to multiply as the audit goes deeper. Both responses tell the agent how aggressively to invest in the case.

Stage 3: Position Development

Once issues are identified, the agent shifts from finding things to building something. A “position” is the IRS’s articulated theory for why a particular adjustment should be made — and the case file the agent builds to support that position is what survives into Appeals, into Tax Court, and into any settlement discussion.

This is where mental discipline starts to differentiate experienced agents from inexperienced ones. Strong positions are built on documents, third-party records, and clean factual narratives. Weak positions rely on inference, taxpayer statements, or agent-developed math that the taxpayer can re-do. A good defense team can usually tell within the first few exchanges which kind of position the agent is building.

Stage 4: Workpaper Construction and Supervisory Sign-Off

Workpapers are not the agent’s notes. They are the IRS’s case file — the formal record that managers, IRS Counsel, Appeals officers, and (if it gets that far) the Tax Court will rely on. Every position the agent develops must eventually be expressed in workpapers that withstand internal review.

This creates a meaningful internal filter. Positions an agent personally believes in but cannot reduce to a clean workpaper get dropped. Positions a manager pushes back on get refined or abandoned. Positions IRS Counsel will not support get withdrawn. The defense team that understands this filter — that knows which positions are likely to survive review and which are not — can apply pressure exactly where it is most likely to produce results.

The Internal Pressures That Shape Every Audit Decision

A Revenue Agent does not have unlimited time, and the IRS does not have unlimited capacity. Every audit operates under three quiet but constant pressures that shape decisions taxpayers rarely see.

Cycle time. Agents have caseload expectations. An audit that drags is an audit that pulls the agent away from their other cases — and from their performance metrics. This is one of the reasons that responsive, well-organized taxpayer cooperation often produces better outcomes than passive resistance: the agent’s incentive is to close the case efficiently, and giving them a clean path to closure is sometimes worth more than fighting every issue.

Review risk. Every aggressive position the agent advances will be reviewed — by the manager, by IRS Counsel, sometimes by Appeals. An agent who advances positions that get overturned at review damages their internal credibility. This is why agents are often reluctant to push aggressive penalty positions, civil fraud allegations, or controversial legal theories unless the workpapers genuinely support them. Recognizing the threshold at which an agent will or will not commit to a position is one of the highest-leverage insights a defense team can have.

Specialty referrals. Complex examinations frequently involve specialists — international examiners, computer audit specialists, financial product specialists, valuation engineers. Bringing in a specialist takes time and case management. Agents weigh the value of escalation against its cost. A defense that signals a serious specialist would face credible counter-arguments may shift the case toward narrower issues that the agent can resolve without bringing in additional resources.

What Agents Look For That Taxpayers Don’t Recognize

Some of the most valuable inside-the-IRS knowledge is also the most counterintuitive. The signals below are things Revenue Agents are trained to read but that taxpayers and unprepared representatives often miss entirely.

• Lifestyle versus reported income. Significant gaps between what the return shows and what the taxpayer’s life suggests — homes, cars, travel, business interests visible on social media — are flags agents notice early. The IRS has access to public records and increasingly to other data streams that make these comparisons routine.
• Round numbers. Returns full of round numbers (exactly $5,000 in expenses, exactly $10,000 in donations) signal estimation rather than documentation. Agents notice this and adjust the audit accordingly.
• Inconsistencies across years. A line item that appeared in 2022 but vanished in 2023 — or a deduction that scaled non-linearly with income — invites questions. Agents do not always pursue these, but they note them, and they shape the case file.
• Related-party transactions without arms-length characteristics. Loans between entities with no documented terms, payments to family members for unspecified services, or rent to controlled entities at non-market rates draw immediate attention.
• Cash-intensive businesses with thin paper trails. Restaurants, salons, contractor businesses, and other cash-heavy operations get scrutinized differently. Agents are trained to test reported gross receipts against industry norms and against bank deposits.
• Crypto and digital asset patterns. Returns showing digital asset activity without corresponding income items, or returns answering “no” to the digital asset question while exchange data shows otherwise, are flagged. Our article on IRS cryptocurrency audits explores this pattern in detail.
• Suspiciously timed amendments and late filings. Returns amended after the IRS opened an audit, or returns filed unusually late after notices, draw heightened attention. Agents note timing.

The pattern in all of these: agents are reading the return for signals about the taxpayer, not just about the numbers. Defense strategies that focus only on document production miss this dimension entirely.

How Agents Decide Whether to Push or Fold on an Issue

One of the most useful insights from inside the IRS is the recognition that agents do not push every issue to its limit. Many issues are noticed, considered, and quietly dropped — because the cost-benefit math does not work for the IRS.

The internal calculus on a given issue weighs:

• The dollar amount at stake
• The strength of the documentary support
• The likelihood the position survives Appeals or Tax Court
• The agent’s confidence in the legal theory
• The amount of additional development needed
• Whether the issue connects to other issues already being developed

Issues with strong documentary support, clear law, and meaningful dollars tend to be pushed. Issues with weak documentary support, ambiguous law, or trivial dollars tend to be dropped — even if the agent personally suspects the taxpayer’s position is wrong. The IRS does not pursue every theoretical adjustment. It pursues the ones that pencil out.

A sophisticated defense uses this. By making strong positions stronger and exposing weak positions early, the defense can shift the agent’s calculus on a case. Issues that were borderline tend to fall toward dropping. Issues that were marginal tend to settle on terms favorable to the taxpayer.

When the Audit Plays By Different Rules

Most of the playbook described above applies to standard examinations. There are categories of audits where the rules shift, and recognizing the shift is critical.

Eggshell audits — civil examinations with potential criminal implications — operate under an entirely different set of rules. The agent’s job is no longer to develop adjustments efficiently but to develop the record carefully, with an eye toward potential referral to IRS Criminal Investigation. Cooperation strategies that make sense in a routine audit can be catastrophic in an eggshell audit.

Global High Wealth and LB&I enterprise audits are also their own world. Cycle-time pressures are different, specialist resources are abundant, and the audit considers the entire web of related entities and transactions rather than the individual return. The mental model a Global High Wealth team brings to a case is integrated and patient in ways most taxpayers do not expect.

Project-driven examinations — audits opened as part of a focused enforcement initiative — also play differently. The agent has trained on the project’s target issue, has examined other taxpayers in the same project, and has internal guidance on what positions to develop. A defense that does not recognize the project’s contours will misread the agent’s posture entirely.

In each of these scenarios, defending without inside-the-IRS perspective is defending blind.

What This Means for Defense Strategy

The aggregate of everything above has a single practical implication for taxpayers under audit: the most consequential decisions in your audit are not the visible ones. They are the unseen ones — the agent’s pre-contact hypothesis, the position-building decisions in the workpaper file, the internal review pressures, the issue-by-issue cost-benefit calculations, and the specific signals the agent is reading from your responses that you do not realize you are sending.

This is what an IRS-insider perspective on the defense team actually changes. With Otto Bosch’s experience inside the IRS Global High Wealth Group and Alex Kugelman‘s nearly two decades of federal tax controversy litigation, Kugelman Law approaches every audit defense matter with a working understanding of the playbook on the other side of the table — and a credible litigation backstop if the case cannot be resolved administratively. We covered the full team capability in our article on why a former IRS revenue agent attorney changes audit defense.

Representative outcomes from the firm’s audit defense practice include a $365,000 tax debt reduced to a zero-dollar liability, a multi-year audit and non-filing matter resolved with minimal payment, and ten years of unfiled returns brought into compliance with a successful outcome. Results depend on specific facts. Past results do not guarantee future outcomes.

If you would like to discuss your IRS or FTB matter and how the firm’s combination of inside-the-IRS perspective and federal tax litigation experience can shape your defense, see our tax help resources or contact the firm directly.

Frequently Asked Questions

How do IRS auditors decide which issues to focus on?

Revenue Agents prioritize issues based on a combination of dollar magnitude, strength of documentary support, clarity of the legal theory, and the cost in agent time required to develop the position. Issues that are well-supported, technically clean, and material to the case tend to be pushed. Issues that are weak, ambiguous, or trivial tend to be quietly dropped — even when the agent personally suspects the taxpayer’s position is incorrect.

What red flags do IRS auditors look for?

Common signals include lifestyle inconsistent with reported income, returns full of round numbers, year-over-year inconsistencies in reported items, related-party transactions without arms-length characteristics, cash-intensive businesses with thin documentation, digital asset activity that does not align with reported income, and suspiciously timed amended or late-filed returns.

Can an IRS auditor decide to drop an issue mid-audit?

Yes. Issues that look promising in pre-contact analysis frequently get dropped during fieldwork as documents and explanations come in. Conversely, issues that were not initially identified can emerge from the development process. Audit scope is not fixed at the opening conference — it evolves as the case develops.

What does it mean when an IRS audit closes “no change”?

A no-change closing means the agent did not develop adjustments and the return is accepted as filed. This outcome is more common than many taxpayers assume. It occurs when the issues identified at selection do not survive document review, when the taxpayer’s documentation is strong, or when the cost-benefit math on the available positions does not justify pursuing them.

How do I know if my IRS audit is becoming an eggshell audit?

There are signals — agent questions that focus on knowledge, intent, and willfulness rather than documentation; involvement of specialized fraud or referral-related personnel; specific timing patterns in document requests; and sudden agent reluctance to discuss the case. Recognizing these signals reliably requires controversy experience. If you have any reason to suspect criminal exposure, attorney representation is essential and should be retained before any further communication with the IRS.

Speak With Kugelman Law

If you are facing an IRS audit, controversy, or complex federal tax matter — or if you suspect the IRS is preparing to open one — schedule a paid privileged consultation with Kugelman Law. Call (415) 968-1780 or visit our contact page. All consultations are fully protected by attorney-client privilege.

If you have received an IRS audit notice — or you are worried one might be coming — one of the first questions worth answering is who, exactly, will be examining your return. The answer matters more than most taxpayers realize. The IRS is not a single, undifferentiated organization. Examinations are conducted by specific employees with specific titles, training, and authority — and the most consequential examinations are handled by a particular kind of IRS employee called a Revenue Agent.

So what does an IRS revenue agent do? In short: a Revenue Agent is the IRS employee assigned to conduct in-depth examinations of complex tax returns, develop adjustments, and build the case file the agency relies on at every stage of dispute resolution. A Revenue Agent’s findings become the basis for proposed assessments, penalties, and — if the case escalates — the record that follows the matter into Appeals or U.S. Tax Court.

This article walks through the role of an IRS Revenue Agent from the inside: how cases are selected, what an examination actually looks like step by step, how internal IRS review works, and what taxpayers should understand before responding to the first contact letter. The perspective is informed by Kugelman Law attorney Otto Bosch, who served as a Revenue Agent in the IRS Global High Wealth Group within the Large Business and International (LB&I) Division before joining the firm in February 2026.

What Is an IRS Revenue Agent?

A Revenue Agent is a credentialed IRS employee whose job is to conduct examinations of tax returns. Most Revenue Agents have backgrounds in accounting and have completed extensive in-house IRS training in tax law, examination procedure, and case development. They are professionals, not paper-pushers, and the cases they handle are generally the cases the IRS has decided are worth investing real examination resources in.

Revenue Agents work civilly. That is, they are not criminal investigators (those are Special Agents within IRS Criminal Investigation, or IRS-CI). But Revenue Agents do conduct what the IRS calls eggshell and reverse-eggshell audits — civil examinations that may have parallel or downstream criminal implications — and they are trained to recognize the badges of fraud and to coordinate with IRS-CI when appropriate.

The Revenue Agent’s authority during an examination is significant. They can issue Information Document Requests (IDRs), conduct interviews, summon third-party records under appropriate procedures, propose adjustments, and recommend penalties. What they cannot do alone is impose a final tax liability — that comes through the formal notice procedures and, if contested, through Appeals or the courts.

How IRS Revenue Agents Are Different from Other IRS Personnel

One of the most common sources of confusion for taxpayers is conflating different IRS roles. Three roles in particular are routinely mistaken for one another:

• Revenue Agents conduct civil audits of tax returns. They are accountants who develop adjustments to taxes owed.
• Revenue Officers collect taxes that have already been assessed. They handle levies, liens, wage garnishments, and the negotiation of installment agreements and offers in compromise.
• Special Agents are criminal investigators within IRS-CI. They build criminal tax fraud, money laundering, and related cases for prosecution.

Each role uses different procedures, requires different defensive strategies, and presents different risks. Knowing which IRS employee you are dealing with is the first step in any tax controversy. If a Revenue Officer is on your matter, the assessment phase is over and the focus has shifted to collections defense. If a Special Agent shows up, civil strategy is no longer the right framework. If a Revenue Agent is conducting your audit, the case is in the development phase — and how that development is managed will define the outcome.

How a Return Lands on a Revenue Agent’s Desk

Returns reach Revenue Agents through several distinct paths, and the path matters because it tells the agent — and an experienced defense team — something about the IRS’s interest in the case.

DIF scoring. The Discriminant Function (DIF) system is a statistical model the IRS uses to score returns for audit potential. High-DIF returns are flagged for review and routed for selection. Most ordinary audits begin this way.

Related-return pickups. When a Revenue Agent is examining one return and finds issues that connect to another taxpayer’s return — a partnership and a partner, a corporation and a shareholder, related entities under common ownership — the related return can be opened for examination as well. This is one reason a single audit can quickly grow into multiple coordinated examinations.

Information matching. The IRS receives extensive third-party information — W-2s, 1099s, K-1s, foreign account reports, broker reports, cryptocurrency exchange disclosures — and matches that data against filed returns. Material mismatches generate notices, and significant mismatches can escalate into a full examination.

Compliance projects and initiatives. The IRS regularly runs enforcement initiatives focused on specific issues — syndicated conservation easements, microcaptive insurance arrangements, cryptocurrency reporting, foreign account compliance, and employee retention credit claims, among others. Returns within the scope of an active initiative are far more likely to be selected.

Whistleblower and informant referrals. The IRS Whistleblower Program pays awards for actionable information about tax noncompliance, and substantiated referrals can result in examination.

Global High Wealth and LB&I selection. For the most complex high-net-worth and corporate examinations, returns are selected through specialized risk-based processes within LB&I, including the enterprise-level approach used by the Global High Wealth Group.

The path of selection often shapes the contour of the examination. A DIF-selected return is usually examined for the issues that drove the score. A related-return pickup tends to focus on the connecting transactions. A project-driven examination is concentrated on the specific issue the project is targeting. Recognizing which is which is one of the things a former IRS revenue agent attorney brings to a defense team from day one.

The Anatomy of an IRS Audit from a Revenue Agent’s Perspective

When a Revenue Agent is assigned a case, the examination unfolds along a fairly predictable arc. Understanding that arc — and the agent’s internal incentives at each stage — is essential to responding effectively.

Pre-Contact and Initial Review

Before the agent ever contacts the taxpayer, the case goes through pre-contact analysis. The agent reviews the return, analyst notes, prior-year returns, and any third-party data already on file. They develop a preliminary issue list — the things they expect to examine — and identify the documents they will need. By the time the audit notice arrives in the mail, the agent has already formed initial views about the case. Sophisticated taxpayers (and sophisticated defense counsel) plan around that reality.

The Opening Conference and First Information Document Request

The first formal contact is generally a notice of examination followed by an opening conference (in person, by telephone, or virtually). At or shortly after the opening conference, the agent issues an initial Information Document Request — the IDR — listing documents and information needed to proceed.

The first IDR is one of the most important documents in the entire examination. It defines the initial scope, signals what the agent considers most important, and frames every subsequent issue. Responses to the first IDR generate the second IDR, which is often where the audit’s actual depth becomes visible. Taxpayers who treat the first IDR as routine paperwork frequently regret it.

Issue Development and Fieldwork

This is the heart of the examination. The agent reviews documents, conducts interviews, examines books and records, and develops each issue toward a recommended adjustment. Within LB&I, this stage often involves multiple specialists — international examiners, computer audit specialists, engineers, financial product experts — coordinating on technical questions. Within the Global High Wealth Group, the entire enterprise of related entities and transactions is considered together rather than examined return by return.

During fieldwork, the agent is not only developing issues but also building the workpapers — the internal documentation that will support each adjustment through supervisor review, Appeals, and any subsequent litigation. That workpaper file is the case. Whatever is in it is what the IRS will rely on later. Whatever is not in it is what the taxpayer can challenge.

Internal Review, Supervisor Sign-Off, and Counsel Coordination

Revenue Agents do not act alone. Throughout an examination, supervisors review the agent’s work, push back on weak positions, and approve significant decisions. For complex issues, IRS Counsel may be involved to provide legal advice on questions the examination cannot resolve internally. Aggressive penalties, fraud referrals, summons enforcement, and other escalations all run through layered approval processes.

This internal architecture creates leverage points for the defense. A position the agent personally favors but the manager is reluctant to defend is a different position than one with full institutional backing. Recognizing the difference — and knowing where to apply pressure — is the kind of insight that comes from having been on the inside.

Closing the Case

Examinations close in one of three general ways. A “no-change” closing means the agent did not find adjustments and the return is accepted as filed. An “agreed” closing means the taxpayer accepts the proposed adjustments (typically by signing Form 870 or similar), the deficiency is assessed, and collections begin if amounts are owed. An “unagreed” closing means the taxpayer contests the proposed adjustments, the agent issues a Revenue Agent’s Report and a 30-day letter, and the case proceeds to Appeals — and ultimately, if necessary, to U.S. Tax Court following a statutory notice of deficiency.

How a case closes is heavily influenced by how it was developed during fieldwork. Cases that are positioned correctly during the examination tend to close cleanly. Cases that are mishandled tend to close badly — with assessments larger than they needed to be, penalties that should not have applied, or records that handicap any subsequent appeal.

Where IRS Revenue Agents Work: SB/SE, LB&I, and Global High Wealth

Not all Revenue Agents are equivalent. The IRS organizes its examination function into divisions, and the division handling a particular case tells you a great deal about the agency’s interest and approach.

Small Business / Self-Employed (SB/SE). This is the largest examination division by case volume. SB/SE Revenue Agents handle most individual and small-business audits — Schedule C examinations, smaller partnership audits, closely held business reviews, and a wide range of personal income tax matters.

Large Business and International (LB&I). LB&I handles the more complex side of corporate, partnership, and high-net-worth examinations. LB&I cases tend to involve higher stakes, more specialists, longer timelines, and significantly more sophistication in issue development.

Global High Wealth Group. Within LB&I, the Global High Wealth Group is the most specialized of all — the team that examines the most complex returns of the wealthiest U.S. taxpayers. Global High Wealth uses an enterprise audit approach, looking at the full web of related entities, trusts, partnerships, and personal returns as an integrated whole. Adjustments developed under that approach can surface issues that would be invisible in a return-by-return examination.

For taxpayers facing a Global High Wealth or LB&I examination, the importance of insider perspective is at its highest. The procedures, specialists, internal review processes, and risk calculus inside that group are not visible from the outside. This is precisely the perspective Otto Bosch brings to every Kugelman Law audit defense matter.

What This Means for You as a Taxpayer Under Audit

Two practical implications follow from understanding how Revenue Agents actually work.

First, the early stages of an examination are the most consequential. By the time the case reaches Appeals or court, much of the record is already fixed. Decisions made in responding to the first IDR, in handling the opening conference, in giving (or not giving) interviews, and in producing (or not producing) documents shape the case in ways that cannot be undone later. Audit defense begins with the first contact letter, not with the 30-day letter.

Second, who is on the other side of the table matters. A Revenue Agent in SB/SE conducting a routine Schedule C audit operates very differently than a Global High Wealth team conducting a coordinated enterprise examination. Defense strategy should match the examination — and that match starts with correctly identifying who is examining you and why.

These are the considerations that drive how Kugelman Law approaches every audit defense matter. With founder Alex Kugelman‘s nearly two decades of federal tax controversy and U.S. Tax Court litigation experience and Otto Bosch‘s direct background as a former Revenue Agent in the IRS Global High Wealth Group, the firm pairs federal litigation capability with inside-the-IRS examination experience — a combination most controversy practices simply cannot offer.

Representative outcomes from the firm’s controversy practice include a $365,000 tax debt reduced to a zero-dollar liability, a multi-year audit and non-filing matter resolved with minimal payment, and ten years of unfiled returns brought into compliance with a successful outcome. Results depend on specific facts. Past results do not guarantee future outcomes.

Frequently Asked Questions

What is the difference between an IRS Revenue Agent and an IRS auditor?

“IRS auditor” is a colloquial term that taxpayers use to describe anyone at the IRS conducting an examination. Inside the agency, the more precise terms are Tax Compliance Officer (TCO) — who handles less complex office and correspondence audits — and Revenue Agent, who handles more complex field examinations. Revenue Agents are the personnel who handle the substantive cases.

How long does an IRS Revenue Agent audit take?

Audit length varies dramatically depending on complexity. A focused single-issue examination may close in a few months. A complex partnership or high-net-worth examination, particularly one conducted through the Global High Wealth Group, can take a year or more. Length is also affected by responsiveness, the number of specialists involved, and whether the case is escalated to Appeals.

Do IRS Revenue Agents have authority to assess penalties?

Yes. Revenue Agents can propose accuracy-related penalties, late-filing and late-payment penalties, and in appropriate cases, civil fraud penalties. Penalty assessments generally require supervisory approval and are subject to challenge through Appeals and the courts. Penalty defense is a meaningful component of any sophisticated audit defense.

Can I refuse to meet with an IRS Revenue Agent?

You can decline to be personally interviewed and have your representative communicate with the agent on your behalf in most circumstances. There is rarely a strategic reason for an unrepresented taxpayer to sit for an unprepared interview with a Revenue Agent. The right approach is to retain a tax controversy attorney before any interview takes place.

What happens if I disagree with the Revenue Agent’s findings?

If the examination ends in proposed adjustments you disagree with, you can request a conference with the agent’s manager, file a formal protest with the IRS Independent Office of Appeals, and ultimately litigate the deficiency in U.S. Tax Court (after a statutory notice of deficiency) or in U.S. District Court or the Court of Federal Claims (after paying the deficiency and filing a refund claim). The path that fits your situation depends on the specific facts.

Speak With Kugelman Law

If a Revenue Agent has opened an examination of your return — or you have reason to believe one is coming — schedule a paid privileged consultation with Kugelman Law. Call (415) 968-1780 or visit our contact page. All consultations are fully protected by attorney-client privilege.

Most taxpayers who receive an IRS audit notice make the same first call: their CPA. A few call a tax attorney. Almost none think to ask a more useful question — does the firm I’m hiring have anyone on the team who has actually sat on the other side of the audit table?

A former IRS revenue agent attorney is one of the rarest and most strategically valuable assets a tax controversy firm can put on a client matter. When the IRS examination team across the table is trained, equipped, and incentivized to develop adjustments against you, the single most important advantage you can secure is a defense team that includes someone who was trained inside that same playbook.

At Kugelman Law, that advantage is now part of every audit defense the firm handles, in the form of attorney Otto Bosch — a former Revenue Agent from the IRS Global High Wealth Group.

This article explains exactly what a Revenue Agent does, why an inside-the-IRS perspective changes the outcome of an audit defense, and how clients of Kugelman Law benefit from a team built around that distinction.

What an IRS Revenue Agent Actually Does

“IRS auditor” is a generic term most taxpayers use, but inside the agency, examination roles are highly specialized. A Revenue Agent is the IRS employee assigned to conduct in-depth examinations of tax returns — particularly the complex ones. Revenue Agents are not call-center employees, and they are not the people who issue automated correspondence notices about a missing 1099. They are accountants, often with advanced training and credentials, whose job is to dig into a return, identify issues, and develop adjustments the IRS can defend at every escalation point.

A Revenue Agent’s day-to-day work includes:

• Reviewing returns flagged by the IRS’s Discriminant Function (DIF) scoring system or selected through specific enforcement initiatives
• Issuing Information Document Requests (IDRs) and analyzing what taxpayers and representatives produce in response
• Conducting interviews with taxpayers, representatives, and third parties
• Building case files and workpapers that support each proposed adjustment
• Coordinating with IRS Counsel and supervisory managers on technical and procedural questions
• Issuing Notices of Proposed Adjustment and, ultimately, the formal Revenue Agent’s Report

Inside the IRS, agents are organized by division. The Small Business / Self-Employed (SB/SE) division handles most individual and small-business audits. The Large Business and International (LB&I) division handles corporate, partnership, and high-net-worth examinations. Within LB&I, the Global High Wealth Group is the most specialized of all — the team that audits the country’s wealthiest taxpayers using a coordinated, enterprise-level approach to complex pass-through structures, related-party transactions, and high-value individual portfolios.

That is the team Otto Bosch served on before joining Kugelman Law.

Why a Former IRS Revenue Agent Attorney Changes Audit Defense

There is a meaningful difference between knowing the tax code and knowing how the IRS uses it. Most tax attorneys learn the IRS from the outside — through court opinions, published guidance, and accumulated experience reading agency notices. A former IRS revenue agent attorney learns it from the inside, through formal IRS training, supervised casework, and the institutional knowledge of how examinations are actually run.

That insider perspective shifts audit defense in three concrete ways.

Anticipating What the IRS Will Do Next

A standard audit defense is reactive. The IRS asks; the taxpayer responds. The agent develops the next issue; the attorney scrambles to address it. A defense informed by inside-the-IRS experience is anticipatory. Former Revenue Agents know which issues an examination team is trained to develop, which questions on an early IDR are setting up future adjustments, and which client statements during interviews tend to escalate cases rather than close them. That foresight allows the defense to prepare positions, marshal documentation, and structure responses before the IRS asks — not after.

Reading the IRS’s Internal Risk Calculus

Revenue Agents are not free agents. They work within strict supervisory review processes, technical advice channels, and internal pressure to close cases efficiently. Every decision an agent makes — whether to escalate an issue, whether to push for a fraud penalty, whether to settle or take a position to Appeals — is filtered through that institutional risk calculus. A former Revenue Agent attorney can read those signals. They know when an agent is genuinely committed to a position versus when the agent is fishing for support, when a manager is likely to overrule an aggressive line of inquiry, and when to push for resolution at the examination level versus when to position the case for Appeals or U.S. Tax Court.

Recognizing the Difference Between a Routine Audit and an Eggshell Audit

Some audits are administrative exercises. Others are the early stages of a fraud investigation. The line between them is not always obvious to taxpayers, or even to attorneys without controversy experience — but it is recognizable to a former Revenue Agent. The badges of fraud, the pattern of questioning, the involvement of certain specialists, the timing of certain document requests — these all carry meaning from the inside. Misreading that line is one of the most expensive mistakes a taxpayer can make. Volunteering information to “look cooperative” in what turns out to be an eggshell audit can convert civil exposure into a criminal referral. Insider perspective is what prevents that mistake.

The Specific Advantages an IRS Insider Brings to Your Case

Distilled to a working list, here is what changes when a former IRS revenue agent attorney is part of a client’s defense team:

• Predicting the audit scope. Knowing what an agent’s first IDR will likely contain, and what the second and third will probably address, allows the defense to prepare on the right timeline rather than catching up after the fact.
• Managing IDR responses strategically. IDRs are not innocent paperwork. The information provided in response — and the information not provided — frames every subsequent issue. Insider experience shapes responses that satisfy the request without volunteering exposure.
• Identifying weak IRS positions early. Not every adjustment an agent proposes is a strong adjustment. Knowing which positions are routinely overturned at Appeals, and which positions managers are reluctant to defend, allows the defense to push back where pushing back actually works.
• Avoiding self-inflicted escalation. Many of the worst audit outcomes are caused by missteps the taxpayer or unprepared representative made early — improvised statements during an interview, careless document production, or unnecessary disclosures. A former Revenue Agent recognizes those traps before they spring.
• Speaking the agent’s language. Audits are negotiations as much as they are technical exercises. An attorney who can speak fluently about IRS workpapers, internal review timelines, and statutory procedural requirements from the agent’s own perspective tends to find a more reasonable counterparty on the other side of the table.
• Building a clean record for what comes next. If a case advances to Appeals or to U.S. Tax Court litigation, the record built during the examination is what the case is ultimately decided on. Insider experience shapes that record from day one for what comes after.

Meet Otto Bosch — Kugelman Law’s Former IRS Global High Wealth Agent

The advantages above are not abstract for Kugelman Law clients. They are embodied in the firm’s attorney Otto Bosch, who joined the firm in February 2026 after serving as a Revenue Agent in the IRS Global High Wealth Group within the Large Business and International (LB&I) Division.

The Global High Wealth Group is the IRS’s specialized unit for examining the most complex returns of the wealthiest U.S. taxpayers. Within that group, Otto worked Information Document Requests, Notices of Proposed Adjustment, partnership compliance issues, related-party transactions, hobby loss disputes, and the layered portfolio-level adjustments that define high-net-worth examinations. He led issue meetings with taxpayers and audit teams, served as the intermediary with IRS Counsel, and developed and resolved more than a dozen high-value adjustments using the enterprise audit approach unique to that group.

He also brings experience from KPMG’s Washington National Tax practice — the elite technical group at one of the Big Four — where he advised national and multinational clients on complex partnership and S-corporation transactions. He holds an LL.M. in Taxation with a focus on Partnership Tax, is an IRS Enrolled Agent, and is fluent in Spanish.

For Kugelman Law clients, Otto’s role is to bring that combined background to the defense of every audit, controversy, and high-stakes federal tax matter the firm handles.

When the IRS Insider Advantage Matters Most

Not every tax matter requires a former Revenue Agent. A simple correspondence audit on a missing 1099 generally does not. But the insider advantage becomes decisive in cases where the IRS is investing real examination resources, the technical issues are complex, or the financial stakes are significant. That includes:

• High-net-worth examinations, particularly those conducted under the Global High Wealth enterprise approach
• Partnership and S-corporation audits, where pass-through complexity, related-party transactions, and basis questions create high-leverage positions for either side
• Cryptocurrency tax audits, where the IRS is rapidly building enforcement infrastructure and where insider perspective on how agents are being trained to approach digital assets is invaluable
• Eggshell audits and audits with potential fraud exposure, where misreading the IRS’s posture can transform civil exposure into criminal risk
• Multi-year non-filing matters and offshore disclosure cases, where the order in which issues are surfaced and resolved meaningfully affects the outcome
• Aggressive collections matters, where understanding the IRS’s collections playbook from the inside changes how levies, liens, and resolution alternatives are negotiated

In each of these scenarios, the difference between a competent defense and a strategic defense is often the difference between paying a six-figure assessment and paying nothing.

How Kugelman Law Pairs IRS Insider Experience With Federal Tax Litigation

Otto Bosch’s background is the newest layer of the firm’s audit defense capability — but it sits on top of nearly two decades of federal tax controversy experience under founder Alex Kugelman, who has litigated in U.S. Tax Court and U.S. District Court and built one of the country’s earliest dedicated cryptocurrency tax practices.

That pairing matters. A former IRS Revenue Agent on the team gives clients the insider’s view of how a case is being built. A senior tax controversy litigator gives clients the credible threat of taking the case to court if it cannot be resolved administratively. Most firms can offer one or the other. Few offer both. The result, for Kugelman Law clients, is an audit defense posture that is informed at the examination level by IRS-insider experience and backstopped at every escalation point by federal court litigation capability.

Representative outcomes from the firm’s controversy practice include a $365,000 tax debt reduced to a zero-dollar liability, a multi-year audit and non-filing matter resolved with minimal payment, and ten years of unfiled returns brought into compliance with a successful outcome. Results depend on specific facts. Past results do not guarantee future outcomes.

Frequently Asked Questions

What is a former IRS revenue agent attorney?

A former IRS revenue agent attorney is a licensed lawyer who previously worked as a Revenue Agent for the Internal Revenue Service before entering private practice. Their value lies in combining legal credentials with direct, inside-the-IRS experience conducting examinations — knowledge that informs how they defend audits, controversies, and tax court matters in private practice.

Is hiring a former IRS Revenue Agent legal and ethical?

Yes. Former IRS employees can enter private practice in tax, subject to well-defined post-employment restrictions that prohibit working on specific matters they were personally and substantially involved in while at the agency. Those rules are routinely complied with by former agents in private practice and do not limit their ability to defend the great majority of audits, controversies, and litigation matters.

How is a former IRS Revenue Agent different from a CPA in audit defense?

A CPA can represent taxpayers before the IRS, but does not have the same legal training, attorney-client privilege protection, or litigation authority as an attorney. A former IRS Revenue Agent who is also a licensed attorney combines all three: technical accounting depth, inside-the-IRS examination experience, and full legal authority including privilege and the ability to litigate in U.S. Tax Court and federal district court.

Does Kugelman Law represent clients outside of California?

Yes. Federal tax controversy work — including IRS audits, U.S. Tax Court litigation, and offshore disclosure matters — is handled for clients nationwide. The firm is based in Marin County with offices in San Francisco and Irvine, and all representation is provided remotely.

What does a paid privileged consultation include?

A paid privileged consultation is a confidential, attorney-client privileged conversation with Kugelman Law about the specifics of a tax matter. Unlike free consultations offered by many firms, the paid model allows for substantive legal advice during the consultation itself — including a candid assessment of the matter, the firm’s recommended strategy, and a clear scope of representation if the client decides to engage.

Speak With Kugelman Law

If you are facing an IRS or FTB audit, a tax controversy, or a complex federal tax matter where insider perspective on the IRS would change your defense, schedule a paid privileged consultation with Kugelman Law. Call (415) 968-1780 or visit our contact page. All consultations are fully protected by attorney-client privilege.