IRS Form 13683: Statement of Disputed Issues Appeal Guide

1. Introduction: What is Form 13683?

IRS Form 13683, officially titled the Statement of Disputed Issues, is an administrative tax appeal form published by the Internal Revenue Service (IRS). The IRS is a federal bureau of the United States Department of the Treasury responsible for administering the internal revenue code and conducting tax audits.

When an IRS audit concludes and you do not agree with the examiner’s proposed changes, you have the legal right to challenge the outcome. Form 13683 serves as a simplified, written appeal request that allows taxpayers to take their audit disagreement to the IRS Independent Office of Appeals.

Specifically designed for smaller audit disputes, Form 13683 allows individual taxpayers and small business owners to dispute proposed tax adjustments without the expense or burden of drafting a formal legal brief. It provides a structured way to state which audit items you dispute and explain your side of the story directly to an impartial appeals officer.

2. Purpose of the Form

When an IRS examination ends with unresolved disagreements, the IRS issues a preliminary notice known as a “30-Day Letter” (such as Letter 525, Letter 950, or Letter 569-X) along with an examination report detailing proposed additional taxes and penalties. At this stage, taxpayers must decide whether to accept the findings, negotiate an appeal, or let the matter advance toward tax court litigation.

Under IRS administrative appeal rules outlined in IRS Publication 5, the procedure for appealing depends entirely on the dollar amount in dispute. If the proposed change exceeds $25,000, the taxpayer is legally required to submit a comprehensive, formal written protest complete with legal citations, extensive exhibits, and penalty-of-perjury statements.

Form 13683 exists to solve this administrative burden for cases where the proposed tax change is $25,000 or less per tax period. It serves as an official “Small Case Request” form. By using Form 13683, taxpayers can quickly itemize the auditor’s errors, provide factual explanations, and secure an administrative appeal hearing without needing a formal legal protest.

3. Who Needs to File This Form

Form 13683 is an event-based appeal form used strictly during the post-audit phase. You need to file this form if you meet all of the following criteria:

• Unagreed Audit Findings: You underwent an IRS audit (such as a correspondence audit, office audit, or field examination) and received a 30-Day Letter with proposed adjustments that you dispute.
• Disputed Amount is $25,000 or Less: The total proposed increase or decrease in tax, penalties, or claimed refund does not exceed $25,000 for each tax period under examination.
• Desire an Appeals Conference: You want an informal administrative conference with an appeals officer from the IRS Independent Office of Appeals to settle the dispute.
• Applicable Tax Types: Your audit involves individual income taxes, employment taxes (such as worker classification disputes on Letter 950-C or 950-D), or specific excise tax adjustments.

4. Who Is Exempt / Not Required to File

Most taxpayers resolving tax issues will never need to complete Form 13683. You are exempt from using this form, or ineligible to use it, in the following situations:

• You Agree with the Audit: If you accept the examiner’s findings, you do not appeal. Instead, you sign the agreement form included with your packet (such as Form 4549, Form 870, or Form 2504) and arrange payment.
• Disputes Exceeding $25,000: If the total disputed tax, additions, and penalties exceed $25,000 for any single tax period, you cannot use Form 13683. You must prepare a formal written protest following the detailed instructions in IRS Publication 5.
• You Received a 90-Day Letter: If the IRS has already issued a formal Statutory Notice of Deficiency (90-Day Letter), the 30-day administrative appeal window has closed. Your remaining option to dispute the tax without paying first is filing a petition with the United States Tax Court.
• Collection-Only Disputes: If you agree with the tax debt but are disputing IRS collection actions (such as a bank levy or tax lien), you must use collection appeal forms like Form 12153 or Form 9423 instead.
• Alternative Small Case Forms: If you choose to submit Form 12203 (Request for Appeals Review) or a simple written letter containing the required small case details, you do not need to file Form 13683.

5. When to File

Form 13683 operates on a strict, time-sensitive deadline governed by federal administrative audit procedures:

• Strict 30-Day Window: You must submit Form 13683 within 30 calendar days from the date printed at the top of your IRS 30-Day Letter.
• Letter Date Controls: The 30-day countdown begins on the date printed on the IRS letter, not the date you opened your mailbox. If the 30th day falls on a Saturday, Sunday, or legal holiday, your deadline extends to the next business day.
• Requesting Extensions: If you need extra time to gather receipts or consult a tax advisor, call the IRS examiner at the phone number listed on your letter before the 30 days expire to request an informal extension.

Failing to respond within this 30-day window forfeits your opportunity for an administrative appeal, prompting the IRS to finalize the audit adjustments automatically.

6. Where and How to File

Form 13683 cannot be submitted through consumer tax preparation software like TurboTax. It is an administrative dispute form delivered directly to the examination group handling your audit.

You must mail, fax, or hand-deliver your completed Form 13683 directly to the specific IRS address as per instructions on your 30-Day Letter. In some cases, the IRS notice will provide a secure fax number or an online document upload link that you can use to expedite delivery.

Do not mail Form 13683 directly to the IRS Independent Office of Appeals. The originating examination office must first assemble your case file, review your disputed items, and officially transfer jurisdiction to Appeals. Always send paper copies using certified mail with a return receipt requested so you have documented proof of timely delivery.

7. Step-by-Step Instructions to Fill the Form

Form 13683 is a concise form designed to clearly capture what you dispute and why. Review the table below for a section-by-section guide.

Section	Required Information	Filing Instructions
Header Information	Taxpayer Identification	Enter your legal name, mailing address, Social Security Number (SSN) or Employer Identification Number (EIN), and daytime phone.
Referenced Tax Periods	Tax Years / Periods	List the specific tax years or calendar quarters being disputed (e.g., 2022, 2023) matching the IRS audit report.
Dollar Limit Notice	$25,000 Threshold Check	Confirm that the total proposed tax and penalty change is $25,000 or less for each tax period listed.
Disputed Issues	Issues I Disagree With	Itemize the specific adjustments from the examination report (e.g., disallowed car expenses, unreported 1099 income, or penalties).
Factual Explanation	Reasons for Disagreement	Explain why the auditor’s findings are incorrect, citing relevant facts, dates, business practices, or tax rules.
Continuation Sheets	Sheet Count & Attachments	If you need additional room, check the box, indicate “Sheet __ of __”, and attach numbered continuation sheets.
Signature Block	Signature & Date	Sign and date the form. An unsigned Form 13683 is invalid and will be returned to you.

Drafting Your Reasons for Disagreement

The core of Form 13683 is your explanation of why the auditor’s findings are wrong. Follow these best practices when writing your statement:

• Be Specific and Factual: Clearly identify each disputed line item from Form 4549 or Form 886-A (such as “Schedule C Supplies Expense of $4,200”). Avoid broad emotional complaints like “the audit was unfair.”
• Reference Your Evidence: Explain the documentation you are attaching to substantiate each deduction (e.g., “Attached Exhibit A contains receipts and bank statements showing $4,200 paid for materials”).
• Address Penalties Directly: If the auditor proposed accuracy-related or failure-to-pay penalties, state clearly that you acted in good faith with reasonable cause, explaining how you relied on professional advice or kept diligent records.

8. Required Documents/Information Needed Before Filling

To prepare an effective Form 13683 appeal, assemble the following records before completing the form:

• The 30-Day Letter: Keep your copy of Letter 525, Letter 950, or Letter 569-X handy to reference case symbols, contact details, and dates.
• The Revenue Agent’s Report (RAR): Have Form 4549 (Income Tax Examination Changes) or Form 886-A (Explanation of Items) showing the auditor’s line-by-line calculations.
• Copies of Audited Tax Returns: Review the original tax return for each audited year to cross-reference reported figures.
• Substantiating Proof: Gather clean photocopies of invoices, canceled checks, bank statements, mileage logs, or contracts supporting your position.
• Form 2848 (Power of Attorney): If you are hiring a CPA, Enrolled Agent, or attorney to represent you before Appeals, attach a signed Form 2848.

9. Common Mistakes to Avoid

Filing an appeal requires strict attention to procedural rules. Avoid these frequent mistakes when preparing Form 13683:

• Missing the 30-Day Deadline: The IRS enforces the 30-day cutoff strictly. If your response arrives late, your case will bypass Appeals and proceed directly to tax assessment.
• Filing for Disputes Over $25,000: If your disputed tax and penalties total $25,001 or more for any single tax period, Form 13683 cannot be used. Submitting it will cause Appeals to reject the small case request and demand a formal written protest.
• Sending Original Records: Never mail original receipts, mileage books, or cancelled checks. Send clear photocopies, as the IRS does not return submitted audit papers.
• Mailing Directly to Appeals: Sending the form to your regional Appeals office instead of the examination address on your 30-Day Letter causes administrative delays and risks missed deadlines.
• Vague Explanations: Simply writing “I don’t agree with the changes” gives the appeals officer no basis to evaluate your case. You must explain why the auditor erred and reference supporting evidence.

10. Penalties for Non-Filing or Errors

Form 13683 is an elective appeal request, so there is no direct penalty or fine simply for choosing not to submit it. However, failing to file carries severe procedural and financial consequences:

• Forfeiture of Administrative Appeal: If you do not respond within 30 days, you lose your right to an informal conference before the IRS Independent Office of Appeals.
• Issuance of Statutory Notice of Deficiency: The IRS will close the audit unagreed and issue a formal 90-Day Letter (Notice of Deficiency). Once issued, your only option to challenge the tax without paying first is filing a formal petition in the United States Tax Court.
• Immediate Tax Assessment: If you ignore both the 30-day letter and the 90-day deficiency notice, the IRS permanently assesses the tax, additions, and penalties against your account.
• Enforced IRS Collections: Once assessed, the debt is subject to daily compounding interest and aggressive collection enforcement, including federal tax liens, wage garnishments, and bank levies.
• Frivolous Appeal Penalties: Submitting an appeal based on frivolous tax-protester arguments or solely to delay collections can expose you to monetary penalties under Internal Revenue Code Section 6673.

11. Related Forms or Schedules

Form 13683 operates within a broader framework of IRS examination, appeal, and representation documents:

• Form 12203: Request for Appeals Review (alternative small case appeal form)
• Form 4549: Income Tax Examination Changes (standard audit report)
• Form 5385: Excise Tax Examination Changes
• Form 886-A: Explanation of Items (detailed auditor findings)
• Form 870: Waiver of Restrictions on Assessment and Collection of Deficiency in Tax
• Form 2504: Agreement to Assessment and Collection of Additional Tax (Employment/Excise)
• Form 2848: Power of Attorney and Declaration of Representative
• Publication 5: Your Appeal Rights and How to Prepare a Protest If You Don’t Agree
• Publication 3498: The Examination Process

12. Frequently Asked Questions

What does “small case request” mean under IRS appeal rules?

A small case request is a simplified appeal process available when the total amount of proposed additional tax, penalties, or claimed refund is $25,000 or less for each tax period. It allows taxpayers to request an appeals conference without preparing a complex, formal legal protest.

How is the $25,000 limit calculated on Form 13683?

The $25,000 threshold applies to each tax period individually, not the cumulative total of all audited years combined. For example, if the IRS proposes adjustments of $15,000 for 2022 and $18,000 for 2023, each year is under $25,000, so you qualify to use Form 13683.

What is the difference between Form 13683 and Form 12203?

Both forms serve as simplified appeal requests for small tax cases under $25,000. Form 13683 is typically enclosed directly with specific examination letters (such as employment tax letters 950-C and 950-D), while Form 12203 is a general appeal form used across broad correspondence examination settings.

What happens after I submit Form 13683?

The IRS examination unit reviews your statement and supporting documents. If the auditor maintains their position, your complete file is forwarded to the IRS Independent Office of Appeals. An appeals officer will then contact you to schedule an informal conference by phone, video, or in person.

Does filing Form 13683 stop interest from accruing?

No. Filing an appeal does not stop statutory interest from compounding on any unpaid tax balance. If the appeals officer ultimately upholds the audit adjustments, interest will be charged from the original return due date until paid.

Can a CPA or attorney submit Form 13683 on my behalf?

Yes. A licensed CPA, Enrolled Agent, or tax attorney can prepare and sign Form 13683 for you, provided they have an active Form 2848 (Power of Attorney and Declaration of Representative) on file with the IRS.

13. Conclusion: Key Takeaways Summarized

IRS Form 13683 provides an accessible, cost-effective way to challenge an unfavorable audit outcome. Keep these essential takeaways in mind:

• Simplified Small Case Appeal: Form 13683 is designed for audit disputes where proposed taxes and penalties are $25,000 or less per tax period.
• Strict 30-Day Window: Submit the form within 30 calendar days from the date printed on your 30-Day Letter to preserve your administrative appeal rights.
• Be Specific and Provide Proof: Itemize the specific auditor adjustments you disagree with and attach supporting records like receipts, bank records, and contracts.
• Avoid Formal Protest Costs: Qualifying for a small case request saves you the time and expense of drafting a formal legal protest.
• Submit via Exam Channels: Mail or fax your completed form directly to the specific IRS address as per instructions on your 30-day notice.