Key takeaway: Start an IRS dispute with the notice, the response deadline, and the precise issues in disagreement. Build a documented explanation for each issue while preserving the correct administrative and court filing rights.
For the wider picture, see IRS representation and notice resolution.
An organized evidence file helps establish what happened and how the tax law applies. It cannot substitute for a timely appeal request or court petition. A notice asking for missing information, a proposed examination adjustment, and a final collection notice can require different responses.
Identify the notice and protect the deadline
Preserve the complete notice and envelope. Record the notice date, tax form and period, proposed action, response deadline, delivery instructions, and IRS contact. Identify whether the document offers administrative appeal rights, court petition rights, or an opportunity to supply information to the originating IRS office.
Calendar the deadline and an earlier preparation date. Keep proof of a timely submission and a copy of everything submitted. If records are incomplete, promptly determine what must be filed to preserve the available right and whether the particular administrative deadline can be extended. Do not assume an unanswered extension request grants more time.
A typical examination letter offers 30 days to request an administrative appeal, but the actual notice and procedure control. A statutory notice of deficiency ordinarily allows 90 days to petition the U.S. Tax Court, or 150 days if addressed to a person outside the United States. These are different stages. See Publication 3498, examination and appeal procedures.
Sending a protest to the IRS is not filing a petition with the Tax Court. Discussions with an examiner or Appeals, a reconsideration request, and Form 2848 processing do not automatically extend a court deadline. Petitioning rules depend on the type of notice; use the Tax Court’s petitioner guidance and obtain timely advice about the notice in hand. If a deadline may already have passed, promptly assess available remedies rather than assuming either that the right is lost or that a late filing will be accepted.
Choose the response that fits the procedural stage
| Situation | Main task | Important distinction |
|---|---|---|
| Request for records or proposed mismatch | Answer the particular questions and reconcile the figures with supporting records. | Not every notice is already an Appeals case. |
| Examination adjustment with appeal rights | Submit the eligible small-case request or formal protest as instructed. | The administrative submission goes to the designated IRS office. |
| Notice of deficiency | Evaluate and preserve the right to petition Tax Court by the applicable deadline. | A letter to the IRS does not substitute for the court filing. |
| Assessed audit liability and new information | Evaluate audit reconsideration, refund-claim procedures, or another applicable remedy. | Payment status, prior agreements, and final decisions affect eligibility. |
| Lien, levy, or installment-agreement dispute | Identify CDP, CAP, or the other procedure specified in the notice. | Collection appropriateness and permitted liability challenges differ from ability-to-pay negotiations. |
| Penalty assessment | Identify the penalty and test the available relief provisions. | Reasonable cause, administrative relief, and correcting an IRS error have different requirements. |
The IRS guidance on considering an appeal emphasizes factual and legal disagreements and support for the taxpayer’s position. If the problem is missing records, first give the originating office the information needed to evaluate the issue. If the only problem is inability to pay an agreed bill, evaluate collection options rather than treating it as a merits appeal.
Understand small-case requests and formal protests
For an eligible examination case, a small-case request is generally available when the entire proposed additional tax and penalties are $25,000 or less for each tax period. Do not split a larger period into several smaller disputes to satisfy the threshold. A qualifying request may use Form 12203 or a brief written statement identifying the disputed changes and reasons for disagreement.
Partnerships, S corporations, employee plans, and exempt organizations require a formal protest regardless of the dollar amount. A legal entity’s LLC label does not settle its federal tax classification or the applicable procedure. The threshold and exceptions appear in Publication 3498; special appeal routes can have their own requirements.
A formal protest should identify the taxpayer and contact information, request Appeals consideration, list the periods and disputed changes, explain the reasons and supporting facts for each issue, and identify relevant legal authority. Include the notice or adjustment report needed to identify the case, the supporting exhibits, and the required signature and penalties-of-perjury declaration.
Use the declaration appropriate to the signer and that person’s knowledge, as explained in Publication 5. A representative should not sign as though personally knowing facts learned only from the client. Send the request to the office specified in the notice; an unsolicited package sent directly to a different Appeals office may not preserve the intended filing.
Build the evidence around individual issues
Create a short chronology with dates for the return, notices, submissions, IRS calls, assessments, payments, and upcoming deadlines. Distinguish an event’s actual date from the date a later document describes it. Preserve the original version of records and label any reconstruction or explanatory worksheet.
For each disputed issue, prepare one analysis with five parts: the IRS position, the result requested, the relevant facts, the governing authority, and the exhibits proving those facts. Explain a computation rather than attaching a ledger and expecting the reviewer to discover the point.
| Issue | Useful evidence | What still needs explanation |
|---|---|---|
| Bank deposits treated as omitted receipts | Bank statements, loan documents, transfer matches, sales records, and a deposit schedule. | Which deposits are income, which are not, and how the schedule reconciles to the return’s accounting method. |
| Disallowed business expense | Invoice, payment evidence, contract, business-purpose records, and applicable substantiation. | Why the expenditure is deductible, by this taxpayer, in this year; payment alone is not enough. |
| Worker classification | Agreements, actual instructions, work practices, investment, and payment records. | The relationship under the applicable test, rather than merely the label on a Form 1099. |
| Payment or credit not applied | Payment confirmation, bank evidence, return instructions, and account transcript. | The correct taxpayer, period, payment type, and any misapplication. |
For example, a hypothetical business has $105,000 in deposits: $60,000 customer collections, $20,000 documented loan proceeds, $15,000 owner capital, and $10,000 transfers from another business bank account. The four categories total $105,000. The schedule explains $45,000 that is not sales revenue under those stated facts, with matching evidence for each category.
That reconciliation does not establish the complete taxable-income figure. Check other accounts, undeposited cash receipts, refunds, liabilities, and accounting-method differences. On accrual books, collections may settle revenue recognized earlier; taxable income can require further adjustments. An unexplained deposit labeled “loan” on a spreadsheet is not proof of a loan.
Use the authority applicable to the tax year and jurisdiction. A deduction article, an IRS landing page, or a current-year limit cannot automatically support an older-year position. Explain why the cited statute, regulation, ruling, or case addresses the actual disputed requirement.
Address collection rights separately from payment proposals
Collection Due Process (CDP) can address procedural compliance, the appropriateness of collection, relevant defenses, and proposed alternatives. A hearing request generally uses Form 12153. A levy CDP notice normally provides a 30-day request period. For a filed lien notice, the 30-day period follows the five-business-day notification period after filing; use the last request date stated in the notice.
A late request may qualify for an equivalent hearing: generally within one year of the levy-notice date, or one year plus five business days after the lien filing. That route does not provide the same automatic levy suspension and Tax Court review as timely CDP. See Publication 1660. Do not let discussions about payment run past the hearing deadline.
Challenging the underlying tax in CDP is restricted by prior receipt of a deficiency notice or another opportunity to dispute the liability, as well as other statutory limits. CDP is not an unrestricted second audit. A CDP determination generally carries a 30-day Tax Court petition period. The relevant rules are in Internal Revenue Code section 6330.
The Collection Appeals Program (CAP) addresses specified collection actions and certain installment-agreement decisions, often quickly. CAP does not provide the same route to challenge the underlying tax, and its decision does not carry a right to Tax Court review. Procedures vary: a revenue-officer lien or levy case normally requires a manager conference, followed by prompt notice of the appeal and Form 9423; installment-agreement appeals have separate rules. Some deadlines are only a few business days. Consult the IRS collection-appeal instructions immediately.
Also identify the requested lien remedy accurately. Release ends the lien when the legal requirements are met; discharge removes it from particular property; subordination changes creditor priority; withdrawal removes the public Notice of Federal Tax Lien and does not itself cancel the tax debt. See the IRS explanation of federal tax liens.
Check reconsideration and penalty-relief eligibility
Audit reconsideration can apply to an unpaid examination assessment or denied credits where relevant information was not previously considered, a return is filed after an IRS substitute return, or an assessment contains a processing or computational error. A fully paid income-tax dispute generally requires a timely refund claim instead. Closing agreements and final court decisions can prevent reconsideration. See Publication 3598. A reconsideration request is not an automatic collection hold or a replacement for a pending appeal deadline.
For penalties, first check whether the assessment is correct. Then evaluate the particular statutory exception, reasonable-cause standard, or administrative relief. Explain the relevant events, their effect on compliance, the steps taken, and supporting dates when reasonable cause is the basis.
The IRS began Automatic Exemption from Penalty (AEP) in summer 2026 for eligible original returns, starting with tax year 2025 annual returns and 2026 quarterly returns. It uses prior timely-compliance history and applies during original-return processing. It does not cover every penalty; accuracy-related and information-return penalties, for example, are outside this relief. See administrative penalty relief.
Legacy First Time Abate remains relevant for eligible earlier returns and certain returns processed before AEP began. For original returns with due dates on or after January 1, 2027, AEP replaces FTA. Publication 6171 explains the transition. Determine the return type, due date, processing history, penalty, and account history before choosing the relief request.
Prepare representation and evaluate resolution terms
You can represent yourself before Appeals or appoint an eligible attorney, CPA, enrolled agent, or other permitted representative. Form 2848 identifies individuals, specified tax matters, and periods. It does not appoint an unnamed firm or redirect every IRS notice exclusively to that firm. Each spouse normally submits a separate authorization for a joint-return matter; notice copies depend on the form’s selections and applicable procedures. See the Form 2848 instructions.
Administrative representation and court admission are separate. An attorney may handle administrative work as well as litigation. CPA licensure alone does not confer admission to the Tax Court or another court. Evaluate court representation early when petition rights, litigation strategy, or privilege concerns are involved.
Before the conference, identify established facts, unresolved facts, and the legal consequence of each possible finding. Appeals can consider litigation risks when resolving eligible disputes. A settlement proposal is an option, not a universal obligation to concede a well-supported position. Review the proposed tax, penalties, interest, affected periods, finality, and payment obligations before signing an agreement.
Keep the final determination or agreement with the evidence index and submission history. Assign responsibility for remaining payments, filings, account checks, and any next deadline. If you want help assessing a notice, contact CPA Firm South Florida with the notice type, tax period, and due date so the requested engagement can be defined.
Frequently asked questions
Does sending a protest to the IRS preserve a Tax Court deadline?
No. An administrative protest and a court petition are separate filings. Continuing IRS discussions, sending additional records, requesting reconsideration, or waiting for Form 2848 processing does not automatically extend the petition deadline.
When can I use a small-case request?
For an eligible examination case, the proposed additional tax and penalties must total $25,000 or less for every tax period. Partnerships, S corporations, employee plans, and exempt organizations require a formal protest regardless of amount. Follow the notice and the procedure for the particular dispute.
Must I offer to pay part of a disputed adjustment to obtain Appeals review?
A proposed settlement is an option, not a universal requirement to concede a supported position. Explain the requested result with facts, law, and computations. Evaluate settlement terms against the merits and litigation risks of the actual case.
Can I dispute the tax amount in a collection hearing?
Sometimes. Collection Due Process allows qualifying challenges to the underlying liability, subject to restrictions involving prior notice and opportunities to dispute the tax. It also addresses collection procedures, appropriate defenses, and collection alternatives. CAP does not provide the same liability-review or court-review route.
Can a CPA handle an administrative appeal and a court case?
An eligible CPA may represent an authorized client before IRS Appeals. Attorneys and enrolled agents can also provide administrative representation. Court representation depends on admission to that court; CPA licensure and Form 2848 do not by themselves authorize it.