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        <title><![CDATA[IRS audit process - Kugelman Law]]></title>
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                <title><![CDATA[What Does an IRS Revenue Agent Do? An Inside Look at the IRS Audit Process]]></title>
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                <pubDate>Wed, 27 May 2026 08:14:11 GMT</pubDate>
                
                    <category><![CDATA[Tax Controversy]]></category>
                
                
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                <description><![CDATA[<p>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&hellip;</p>
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What Does an IRS Revenue Agent Do? An Inside Look at the IRS Audit Process
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Alex Kugelman, Otto Bosch, Kugelman Law

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<p>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 <strong>Revenue Agent</strong>.</p>
<p>So <strong>what does an IRS revenue agent do</strong>? 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.</p>
<p>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 <a href="https://www.kugelmanlaw.com/our-team/otto-bosch/">Otto Bosch</a>, 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.</p>
<h2>What Is an IRS Revenue Agent?</h2>
<p>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.</p>
<p>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.</p>
<p>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.</p>
<h2>How IRS Revenue Agents Are Different from Other IRS Personnel</h2>
<p>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:</p>
<ul>
<li><strong>Revenue Agents</strong> conduct civil audits of tax returns. They are accountants who develop adjustments to taxes owed.</li>
<li><strong>Revenue Officers</strong> collect taxes that have already been assessed. They handle levies, liens, wage garnishments, and the negotiation of installment agreements and offers in compromise.</li>
<li><strong>Special Agents</strong> are criminal investigators within IRS-CI. They build criminal tax fraud, money laundering, and related cases for prosecution.</li>
</ul>
<p>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 <a href="https://www.kugelmanlaw.com/services/tax-law/tax-collections/">collections defense</a>. 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.</p>
<h2>How a Return Lands on a Revenue Agent’s Desk</h2>
<p>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.</p>
<p><strong>DIF scoring.</strong> 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.</p>
<p><strong>Related-return pickups.</strong> 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.</p>
<p><strong>Information matching.</strong> 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.</p>
<p><strong>Compliance projects and initiatives.</strong> 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.</p>
<p><strong>Whistleblower and informant referrals.</strong> The IRS Whistleblower Program pays awards for actionable information about tax noncompliance, and substantiated referrals can result in examination.</p>
<p><strong>Global High Wealth and LB&I selection.</strong> 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.</p>
<p>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 href="https://www.kugelmanlaw.com/blog/former-irs-revenue-agent-attorney/">a former IRS revenue agent attorney</a> brings to a defense team from day one.</p>
<h2>The Anatomy of an IRS Audit from a Revenue Agent’s Perspective</h2>
<p>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.</p>
<h3>Pre-Contact and Initial Review</h3>
<p>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.</p>
<h3>The Opening Conference and First Information Document Request</h3>
<p>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.</p>
<p>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.</p>
<h3>Issue Development and Fieldwork</h3>
<p>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.</p>
<p>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 <em>is</em> 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.</p>
<h3>Internal Review, Supervisor Sign-Off, and Counsel Coordination</h3>
<p>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.</p>
<p>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.</p>
<h3>Closing the Case</h3>
<p>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 <a href="https://www.kugelmanlaw.com/services/tax-law/u-s-tax-court-litigation/">U.S. Tax Court</a> following a statutory notice of deficiency.</p>
<p>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.</p>
<h2>Where IRS Revenue Agents Work: SB/SE, LB&I, and Global High Wealth</h2>
<p>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.</p>
<p><strong>Small Business / Self-Employed (SB/SE).</strong> 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.</p>
<p><strong>Large Business and International (LB&I).</strong> 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.</p>
<p><strong>Global High Wealth Group.</strong> 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.</p>
<p>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.</p>
<h2>What This Means for You as a Taxpayer Under Audit</h2>
<p>Two practical implications follow from understanding how Revenue Agents actually work.</p>
<p><strong>First, the early stages of an examination are the most consequential.</strong> 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. <a href="https://www.kugelmanlaw.com/services/tax-law/tax-audits/">Audit defense</a> begins with the first contact letter, not with the 30-day letter.</p>
<p><strong>Second, who is on the other side of the table matters.</strong> 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.</p>
<p>These are the considerations that drive how Kugelman Law approaches every audit defense matter. With founder <a href="https://www.kugelmanlaw.com/our-team/alex-kugelman/">Alex Kugelman</a>‘s nearly two decades of federal tax controversy and U.S. Tax Court litigation experience and <a href="https://www.kugelmanlaw.com/our-team/otto-bosch/">Otto Bosch</a>‘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.</p>
<p>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. <em>Results depend on specific facts. Past results do not guarantee future outcomes.</em></p>
<h2>Frequently Asked Questions</h2>
<h3>What is the difference between an IRS Revenue Agent and an IRS auditor?</h3>
<p>“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.</p>
<h3>How long does an IRS Revenue Agent audit take?</h3>
<p>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.</p>
<h3>Do IRS Revenue Agents have authority to assess penalties?</h3>
<p>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.</p>
<h3>Can I refuse to meet with an IRS Revenue Agent?</h3>
<p>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.</p>
<h3>What happens if I disagree with the Revenue Agent’s findings?</h3>
<p>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.</p>
<h2>Speak With Kugelman Law</h2>
<p>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 <strong>(415) 968-1780</strong> or visit our <a href="https://www.kugelmanlaw.com/contact-us/">contact page</a>. All consultations are fully protected by attorney-client privilege.</p>
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<h3>About the Author</h3>
<p><strong>Alex Kugelman</strong> is the founder and managing attorney of Kugelman Law, a boutique tax controversy and cryptocurrency tax firm serving California and clients nationwide. With nearly two decades of federal tax controversy experience — including litigation in the U.S. Tax Court and U.S. District Court — Alex represents individuals and businesses in their most consequential disputes with the IRS and the California Franchise Tax Board. He is a member of the State Bar of California (No. 255463), admitted to the Bar of the U.S. Supreme Court, and served as San Francisco Chair of the Federal Bar Association’s Tax Division in 2018. He is also a member of the Marin County Assessment Appeals Board and a nationally recognized cryptocurrency tax attorney featured on the <em>Bitcoin.tax</em> podcast and <em>The Mark Milton Show</em>. <a href="https://www.kugelmanlaw.com/our-team/alex-kugelman/">Read Alex’s full bio</a>.</p>
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                <title><![CDATA[The Stages of an IRS Cryptocurrency Audit: A Step-by-Step Guide]]></title>
                <link>https://www.kugelmanlaw.com/blog/stages-of-irs-cryptocurrency-audit/</link>
                <guid isPermaLink="true">https://www.kugelmanlaw.com/blog/stages-of-irs-cryptocurrency-audit/</guid>
                <dc:creator><![CDATA[Kugelman Law]]></dc:creator>
                <pubDate>Fri, 24 Apr 2026 19:27:02 GMT</pubDate>
                
                    <category><![CDATA[IRS Crypto Audit]]></category>
                
                
                    <category><![CDATA[90-day letter]]></category>
                
                    <category><![CDATA[Alex Kugelman]]></category>
                
                    <category><![CDATA[crypto audit stages]]></category>
                
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                    <category><![CDATA[federal tax controversy]]></category>
                
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                <description><![CDATA[<p>By Alex Kugelman, Founder and Managing Attorney, Kugelman Law Understanding the stages of an IRS crypto audit is the single most useful thing a taxpayer under examination can do. Each stage has its own rules, its own deadlines, and its own strategic opportunities. Missing a deadline or misjudging a stage can cost you settlement leverage,&hellip;</p>
]]></description>
                <content:encoded><![CDATA[
<p><em>By Alex Kugelman, Founder and Managing Attorney, Kugelman Law</em></p>



<p>Understanding the <strong>stages of an IRS crypto audit</strong> is the single most useful thing a taxpayer under examination can do. Each stage has its own rules, its own deadlines, and its own strategic opportunities. </p>



<p>Missing a deadline or misjudging a stage can cost you settlement leverage, appeal rights, or in the worst cases, the ability to challenge the IRS’s position in court at all.</p>


<div class="wp-block-image">
<figure class="alignright size-large is-resized"><img loading="lazy" decoding="async" width="819" height="1024" src="/static/2026/04/kugelman-law-stages-irs-crypto-audit-featured-819x1024.png" alt="Kugelman Law featured image for step-by-step guide to the stages of an IRS cryptocurrency tax audit." class="wp-image-1474" style="object-fit:cover;width:400px;height:500px" srcset="/static/2026/04/kugelman-law-stages-irs-crypto-audit-featured-819x1024.png 819w, /static/2026/04/kugelman-law-stages-irs-crypto-audit-featured-240x300.png 240w, /static/2026/04/kugelman-law-stages-irs-crypto-audit-featured-768x960.png 768w, /static/2026/04/kugelman-law-stages-irs-crypto-audit-featured.png 1080w" sizes="auto, (max-width: 819px) 100vw, 819px" /></figure>
</div>


<p>Kugelman Law represents cryptocurrency investors, traders, and businesses in IRS examinations nationwide. This guide walks through the full procedural arc of a federal cryptocurrency audit — from the opening notice through potential <a href="https://www.kugelmanlaw.com/services/tax-law/u-s-tax-court-litigation/">U.S. Tax Court litigation</a> — and identifies the decision points where experienced representation changes the outcome.</p>



<h2 class="wp-block-heading" id="h-why-crypto-audits-follow-a-predictable-procedural-path">Why Crypto Audits Follow a Predictable Procedural Path</h2>



<p>Federal tax audits, including cryptocurrency audits, are governed by the Internal Revenue Manual, the Internal Revenue Code, and decades of IRS procedural practice. The IRS does not improvise the structure of an audit. It follows a defined sequence of steps, and understanding that sequence gives a prepared taxpayer meaningful strategic advantages. The crypto-specific wrinkles — blockchain forensics, cost basis reconstruction, DeFi and NFT treatment, foreign exchange issues — layer on top of this standard procedural framework.</p>



<p>What follows is the typical sequence for a civil cryptocurrency audit. Criminal investigations follow a different (and far more serious) path and are outside the scope of this article.</p>



<h2 class="wp-block-heading" id="h-stage-1-the-opening-notice">Stage 1: The Opening Notice</h2>



<p>The audit begins with a letter. For individual cryptocurrency taxpayers, this is typically either a CP2000 notice (for mismatch-driven correspondence audits), Letter 2205 (for office or field audits), or Letter 6173 / 6174 / 6174-A (the crypto-specific “soft letters” the IRS has used to prompt voluntary compliance). Business entities may receive Letter 2205-B.</p>



<p>The opening notice identifies the tax years under examination, the issues to be examined, the examiner assigned, and whether the audit is a correspondence audit (handled by mail), an office audit (conducted at an IRS office), or a field audit (conducted at the taxpayer’s business or representative’s office).</p>



<p><strong>Strategic opportunity at this stage:</strong> The opening notice is the best time to engage tax counsel. A Form 2848 Power of Attorney filed promptly routes all communications through your attorney, establishes attorney-client privilege over your audit strategy, and signals to the examiner that the file will be handled professionally. Taxpayers who wait until the audit is already in motion give up meaningful leverage.</p>



<p>For a deeper look at how each type of audit differs, see our guide to <a href="https://www.kugelmanlaw.com/blog/types-of-cryptocurrency-tax-audits/">types of cryptocurrency tax audits</a>.</p>



<h2 class="wp-block-heading" id="h-stage-2-the-initial-interview-and-scope-setting">Stage 2: The Initial Interview and Scope Setting</h2>



<p>In office and field audits, the examiner will typically request an initial interview, either in person or by telephone. For cryptocurrency cases, the examiner uses this interview to understand the taxpayer’s crypto activity at a high level — what exchanges they used, whether they self-custodied, whether they engaged in mining, staking, DeFi, or NFT transactions, and whether foreign exchanges or wallets are involved.</p>



<p>This interview shapes the scope of the entire audit. Answers given here are difficult to walk back later. In our experience, taxpayers who attempt to handle the initial interview on their own almost always volunteer information the examiner had no independent way to obtain — and that volunteered information often becomes the basis for expanded audit scope.</p>



<p><strong>What a tax attorney does at this stage:</strong> We typically attend (or handle) the initial interview on the client’s behalf, limit the scope to what is strictly relevant to the stated audit issues, and establish a document production protocol with the examiner that protects privilege and controls the pace of the examination.</p>



<h2 class="wp-block-heading" id="h-stage-3-information-document-requests-idrs">Stage 3: Information Document Requests (IDRs)</h2>



<p>The IDR is the workhorse of any crypto audit. Issued on Form 4564, an Information Document Request lists specific records the examiner wants and sets a deadline (typically 15 to 30 days) for response. In a cryptocurrency audit, IDRs commonly demand wallet addresses, exchange statements, cost basis documentation, DeFi and NFT records, foreign exchange activity, and communications with tax preparers.</p>



<p>Crypto audits typically involve multiple rounds of IDRs. The examiner reviews the initial response, identifies follow-up questions, and issues additional IDRs. Each round is an opportunity to narrow scope, establish favorable facts, and frame the narrative — or, handled poorly, to compound the examiner’s concerns.</p>



<p>We’ve written a separate in-depth guide on <strong><a href="https://www.kugelmanlaw.com/blog/irs-idr-crypto-audit/">IRS IDRs in crypto audits</a></strong> because this stage is consequential enough to warrant its own treatment. At a high level, the key is that IDR responses are not document dumps — they are strategic communications that become part of the administrative record for any subsequent appeal or litigation.</p>



<h2 class="wp-block-heading" id="h-stage-4-proposed-adjustments-and-the-examination-report">Stage 4: Proposed Adjustments and the Examination Report</h2>



<p>Once the examiner has gathered the records they consider sufficient, they prepare an examination report (generally Form 4549 for individual income tax adjustments or Form 5701 for notices of proposed adjustment). This report lists each proposed change to the return and calculates the resulting tax, interest, and penalty exposure.</p>



<p>In crypto audits, the most common proposed adjustments include recharacterization of transactions as taxable events the taxpayer did not report, reassignment of cost basis (often to zero, absent defensible records), reclassification of ordinary versus capital gain treatment, and the assertion of accuracy-related penalties under IRC Section 6662. FBAR and foreign information return penalties may be layered on where offshore exchange activity is involved.</p>



<p>The taxpayer has an opportunity to respond to the proposed adjustments before the report is finalized. This is not a token exercise. A well-crafted response, supported by reconstructed records and legal authority, frequently causes examiners to drop or reduce proposed adjustments before they ever leave the examination desk.</p>



<h2 class="wp-block-heading" id="h-stage-5-the-30-day-letter-and-protest-to-irs-appeals">Stage 5: The 30-Day Letter and Protest to IRS Appeals</h2>



<p>If the taxpayer and examiner cannot reach agreement at the examination level, the IRS issues a 30-day letter. This letter transmits the examination report and offers the taxpayer 30 days to file a written protest requesting review by the IRS Independent Office of Appeals.</p>



<p>IRS Appeals is procedurally and functionally independent from examination. Appeals officers have broader settlement authority than examiners and are instructed to weigh the “hazards of litigation” — meaning the likelihood that the IRS would lose all or part of its position in court. For crypto audits, where the law is still developing and where reasonable minds disagree on treatment of many transactions, the hazards-of-litigation standard often produces meaningful settlement movement.</p>



<p>A well-drafted protest is a consequential document. It states the facts, identifies the disputed adjustments, sets out the taxpayer’s legal position with authority, and presents the matter in a way that makes settlement attractive to the Appeals officer. This is an area where nearly two decades of federal tax controversy experience produces visibly different results than generic audit representation.</p>



<p><strong>Important deadline:</strong> The 30-day response period is firm. Missing it forfeits the administrative appeal and typically accelerates the case toward a statutory notice of deficiency.</p>



<h2 class="wp-block-heading" id="h-stage-6-irs-appeals-conference">Stage 6: IRS Appeals Conference</h2>



<p>If a protest is timely filed, the case is assigned to an Appeals officer who will schedule a conference. These conferences are generally informal and can be held by telephone, video, or in person. The Appeals officer reviews the administrative file, considers the protest and any supplemental submissions, and engages with the taxpayer’s representative to explore settlement.</p>



<p>In our experience, Appeals is often where crypto audits resolve. The Appeals officer’s independence, combined with broader settlement authority and the hazards-of-litigation framework, creates meaningful room to negotiate outcomes that examination would not offer. Matters that seem frozen at the examination level frequently move significantly at Appeals.</p>



<p>Settlement at Appeals is typically memorialized in a Form 870-AD (Offer of Waiver of Restrictions on Assessment and Collection of Deficiency in Tax and of Acceptance of Overassessment) or a closing agreement. Once signed, the matter is resolved and the tax is assessed according to the agreement.</p>



<h2 class="wp-block-heading" id="h-stage-7-the-90-day-letter-statutory-notice-of-deficiency">Stage 7: The 90-Day Letter (Statutory Notice of Deficiency)</h2>



<p>If Appeals does not resolve the case — or if the taxpayer did not protest to Appeals at the 30-day letter stage — the IRS issues a statutory notice of deficiency, commonly called a 90-day letter. This is a formal determination that triggers one of the most important deadlines in federal tax practice.</p>



<p>The taxpayer has 90 days from the date of the notice (150 days if the notice is addressed to a person outside the United States) to file a petition in U.S. Tax Court. If no petition is filed within the statutory period, the deficiency becomes final, the tax is assessed, and the taxpayer loses the right to contest the liability in Tax Court. At that point, the only remaining forum is to pay the tax and sue for refund in U.S. District Court or the Court of Federal Claims — a much more expensive and procedurally cumbersome path.</p>



<p><strong>The 90-day deadline is jurisdictional.</strong> No extensions. No exceptions. A petition filed on day 91 is dismissed for lack of jurisdiction, full stop. If you have received a statutory notice of deficiency from a crypto audit, engage qualified tax counsel immediately — not next week.</p>



<h2 class="wp-block-heading" id="h-stage-8-u-s-tax-court-petition-and-litigation">Stage 8: U.S. Tax Court Petition and Litigation</h2>



<p>Filing a timely Tax Court petition preserves the taxpayer’s right to challenge the IRS’s determination without first paying the tax. Tax Court is a specialized federal court with judges who exclusively hear tax cases. Cases can be designated as “small tax cases” (for deficiencies under $50,000 per year, with simplified procedures) or as regular Tax Court cases.</p>



<p>Filing a petition does not commit the case to trial. In practice, the majority of Tax Court cases settle before trial, often through IRS Counsel or a second trip to Appeals. The filing itself, however, preserves the taxpayer’s position and creates new settlement dynamics.</p>



<p>If the case proceeds to trial, the taxpayer presents evidence, calls witnesses, and argues the law before a Tax Court judge. For cryptocurrency cases, this may involve expert testimony on blockchain forensics, cost basis methodology, and technical characterization of DeFi or staking transactions.</p>



<p>Alex Kugelman is admitted to practice before the U.S. Tax Court and the U.S. Supreme Court, and has represented clients in U.S. Tax Court and U.S. District Court tax litigation. Our firm handles crypto audit matters through every stage, including trial, on a nationwide basis.</p>



<h2 class="wp-block-heading" id="h-stage-9-assessment-and-collection">Stage 9: Assessment and Collection</h2>



<p>Once the audit is fully resolved — by settlement, decision, or default — the IRS assesses the tax and begins collection. If the liability is not paid, the matter transitions from the examination side of the IRS to the collection side, and a different set of procedural rules governs. Options at that point include installment agreements, offers in compromise, currently not collectible status, and challenges through the Collection Due Process (CDP) procedure.</p>



<p>Collection defense is a distinct practice area. For resources on that phase, see our <a href="https://www.kugelmanlaw.com/services/tax-law/tax-collections/">tax collections</a> page.</p>



<h2 class="wp-block-heading" id="h-typical-timeframes-and-realistic-expectations">Typical Timeframes and Realistic Expectations</h2>



<p>Most federal cryptocurrency audits take 12 to 24 months from opening notice to resolution at the examination or Appeals level. Complex matters involving multiple years, DeFi or NFT activity, or foreign exchanges can run longer. Cases that proceed to Tax Court typically add another 12 to 24 months, though many settle before trial.</p>



<p>In matters we have handled, a $365,000 proposed tax debt was reduced to a zero-dollar liability, a multi-year audit and non-filing matter was resolved with minimal payment, and ten years of unfiled returns were resolved with a successful outcome. <em>Results depend on specific facts. Past results do not guarantee future outcomes.</em></p>



<h2 class="wp-block-heading" id="h-why-the-early-stages-matter-most">Why the Early Stages Matter Most</h2>



<p>If there is one takeaway from this procedural walkthrough, it is this: the earlier in the audit you engage experienced tax counsel, the more options you preserve. Scope set at Stage 2 constrains the examination. Records produced at Stage 3 shape the administrative record for every subsequent stage. A protest filed at Stage 5 determines whether Appeals will even hear the case. A petition filed at Stage 7 determines whether Tax Court has jurisdiction.</p>



<p>By the time a taxpayer reaches Stage 8, many of the most favorable strategic decisions are already behind them. The best time to engage counsel is at Stage 1.</p>



<h2 class="wp-block-heading" id="h-nationwide-representation-for-every-stage-of-a-crypto-audit">Nationwide Representation for Every Stage of a Crypto Audit</h2>



<p>Federal cryptocurrency audits are federal matters, and Kugelman Law represents clients throughout the United States. Alex Kugelman is admitted to the U.S. Supreme Court and has nearly two decades of federal tax controversy experience, including U.S. Tax Court and U.S. District Court litigation. Our cryptocurrency specialization has been featured on the Bitcoin.tax podcast and The Mark Milton Show. Wherever you are located, if you are facing an IRS crypto audit, we can represent you at every stage.</p>



<h2 class="wp-block-heading" id="h-frequently-asked-questions-about-the-stages-of-a-crypto-audit">Frequently Asked Questions About the Stages of a Crypto Audit</h2>



<h3 class="wp-block-heading" id="h-how-long-does-an-irs-cryptocurrency-audit-take">How long does an IRS cryptocurrency audit take?</h3>



<p>Most crypto audits take between 12 and 24 months from opening notice to resolution, though complex matters involving multiple years, DeFi activity, or foreign exchanges can take longer. Matters that proceed to IRS Appeals or U.S. Tax Court extend further.</p>



<h3 class="wp-block-heading" id="h-what-is-the-difference-between-a-30-day-letter-and-a-90-day-letter">What is the difference between a 30-day letter and a 90-day letter?</h3>



<p>A 30-day letter proposes adjustments at the close of examination and invites a protest to IRS Appeals. A 90-day letter, or statutory notice of deficiency, is a formal determination that gives the taxpayer 90 days to petition U.S. Tax Court or the deficiency becomes final and assessable.</p>



<h3 class="wp-block-heading" id="h-can-i-settle-a-crypto-audit-without-going-to-court">Can I settle a crypto audit without going to court?</h3>



<p>Most crypto audits are resolved at the examination or Appeals stage without litigation. IRS Appeals offers an independent review and broader settlement authority than examination. Litigation in U.S. Tax Court is always an option if Appeals does not reach a reasonable result.</p>



<h3 class="wp-block-heading" id="h-when-should-i-hire-a-tax-attorney-in-a-crypto-audit">When should I hire a tax attorney in a crypto audit?</h3>



<p>Earlier is almost always better. Engaging counsel at the opening notice or first Information Document Request stage preserves strategic options, establishes attorney-client privilege, and often changes the trajectory of the entire audit.</p>



<h3 class="wp-block-heading" id="h-does-the-irs-audit-cryptocurrency-investors-nationwide">Does the IRS audit cryptocurrency investors nationwide?</h3>



<p>Yes. The IRS audits cryptocurrency taxpayers throughout the United States. The examination division uses blockchain analytics, exchange reporting, and John Doe summons data to identify audit candidates regardless of geography.</p>



<h2 class="wp-block-heading" id="h-under-audit-engage-counsel-at-the-right-stage">Under Audit? Engage Counsel at the Right Stage.</h2>



<p>The earlier you engage experienced tax counsel, the more strategic options remain open. Kugelman Law offers paid, privileged consultations with founder Alex Kugelman — fully protected by attorney-client privilege — at any stage of a cryptocurrency audit, from opening notice through U.S. Tax Court.</p>



<p><strong>Call <a href="tel:+14159681780">(415) 968-1780</a> or <a href="https://www.kugelmanlaw.com/contact-us/">contact Kugelman Law</a> to schedule your consultation.</strong></p>



<h2 class="wp-block-heading" id="h-about-the-author">About the Author</h2>



<p><strong><a href="https://www.kugelmanlaw.com/our-team/alex-kugelman/">Alex Kugelman</a></strong> is the Founder and Managing Attorney of Kugelman Law, a boutique tax controversy and cryptocurrency tax law firm representing clients nationwide. He is admitted to the California Bar (2008, No. 255463) and the U.S. Supreme Court, and is a member of the American Bar Association, the California State Bar, and the Federal Bar Association, where he served as San Francisco Chair of the FBA Tax Division in 2018. Alex also serves on the Marin County Assessment Appeals Board. He holds a J.D. from Chapman University Fowler School of Law (2007) and a B.A. in English Literature from the University of Colorado at Boulder (2001).</p>



<p>With nearly two decades of federal tax controversy experience — including U.S. Tax Court and U.S. District Court litigation — Alex is nationally recognized for his cryptocurrency tax specialization and has been featured on the Bitcoin.tax podcast and The Mark Milton Show.</p>



<h2 class="wp-block-heading" id="h-related-kugelman-law-resources">Related Kugelman Law Resources</h2>



<ul class="wp-block-list">
<li><a href="https://www.kugelmanlaw.com/services/cryptocurrency-accounting-audits/">Cryptocurrency Accounting & Audits</a></li>



<li><a href="https://www.kugelmanlaw.com/services/tax-law/tax-audits/">Tax Audits</a></li>



<li><a href="https://www.kugelmanlaw.com/services/tax-law/u-s-tax-court-litigation/">U.S. Tax Court Litigation</a></li>



<li><a href="https://www.kugelmanlaw.com/services/tax-law/tax-collections/">Tax Collections</a></li>



<li><a href="https://www.kugelmanlaw.com/services/tax-law/tax-help/">Tax Help</a></li>
</ul>



<p><em>This article is for general informational purposes only and does not constitute legal advice. Reading this article does not create an attorney-client relationship with Kugelman Law. Results depend on specific facts. Past results do not guarantee future outcomes.</em></p>
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