Overview
If a state tax agency issues an audit adjustment, you have the right to challenge it. When the same transactions or deductions affect your federal return, coordinating your state appeal with federal appeals (or administrative protests) avoids contradictory positions and strengthens your case. State procedures, deadlines, and the practical effect on collections vary by state; always confirm requirements on the issuing agency’s website.
Step‑by‑step strategy for coordinating appeals
1) Read the notice and calendar the deadline
- Carefully review the audit notice: it typically explains why the adjustment was made, the proposed tax and penalties, and the deadline for appeal. Missing a deadline can forfeit your administrative rights.
2) Preserve and organize records
- Collect the audit file: returns, supporting documents, audit workpapers, and correspondence. Create a concise audit packet that explains your position and points to supporting records.
3) Start with an informal conference when appropriate
- Many states offer an informal review or conference with the auditor or their manager. Use this step to clarify misunderstandings and narrow issues before filing a formal protest.
4) File the formal state protest or petition correctly
- If informal steps fail, file the state’s required formal protest (language and contents vary by state). Some states require a signed statement of facts or formal legal brief; others accept a simpler protest letter.
5) Simultaneously review federal implications and deadlines
- Determine whether the same facts create an exposure on your federal return. If so, preserve federal audit positions and file any necessary federal protest (for example, an administrative appeal to the IRS Office of Appeals) so both agencies see consistent legal and factual arguments. See the IRS Office of Appeals guidance for administrative appeals (https://www.irs.gov/appeals).
6) Align your legal and factual arguments
- Use the same primary evidence and legal theories in both appeals where applicable. If state tax law differs from federal law on a point (e.g., timing or state‑specific deductions), explain the distinction clearly and support it with statutes, regulations, and controlling case law.
7) Watch collection and lien rules
- Whether filing an appeal suspends collection activity depends on the state and on the federal process. For collection due process (CDP) cases with the IRS, certain timely requests can stay levy actions; state rules vary. Do not assume an appeal automatically stops collection—request a stay in writing if you need one.
8) Consider scope and venue choices
- Exhaust administrative remedies first if required by the state. If you disagree with an administrative decision, most taxpayers can petition a state tax court or equivalent tribunal; similarly, unresolved federal disputes may be taken to U.S. Tax Court or federal district court after the administrative process.
Tactical issues and common mistakes
- Missing deadlines: Filing windows differ by state. Put all dates on a shared timeline and act early.
- Inconsistent positions: Presenting contradictory facts to state and federal authorities weakens credibility and risks adverse findings in both forums.
- Over‑reliance on informal assurances: Oral statements by auditors should be followed up in writing and included in the record.
- Not involving counsel early: Complex multistate or federal overlap cases often benefit from a tax attorney or CPA experienced in appeals.
Real‑world examples (illustrative)
- Disallowed deduction: A business expense disallowed by a state as a non‑business cost may still be deductible for federal tax purposes. The appeal argued state law nuances while showing federal compliance; aligning records preserved credibility with both staffs.
- Nexus and multistate income: Remote work and online sales can trigger different sourcing rules across states. Coordinated defenses that explain gross receipts, sourcing, and apportionment reduced duplicate assessments (see our guide on Navigating Multistate Tax Audits).
When to escalate or litigate
If administrative appeals fail, taxpayers can usually seek review in the state tax court system or federal courts (for federal disputes). Consider cost, precedent value, and settlement prospects before litigating. In many cases, a negotiated settlement or partial resolution preserves cash flow and reduces litigation risk.
Professional tips
- Centralize documents in a single audit file and reference the same exhibits in both appeals.
- Use a short, persuasive statement of facts followed by citations; judges and appeals officers read many cases.
- Ask for an extensions or a stay in writing if you need time to prepare or coordinate federal responses.
Resources and internal guides
- State audit preparations: How to Prepare for a State Sales Tax Audit: A Pre‑Audit Checklist
- Administrative appeal procedures: Tax Audit Appeals: How to File a Protest and Prepare for an Appeals Conference
- Multistate issues: Navigating Multistate Tax Audits: Preparing Records and Responses
Authoritative references
- IRS, Office of Appeals: https://www.irs.gov/appeals
- State tax agency websites and published appeals rules (search the issuing agency for deadlines and filing formats).
Disclaimer
This entry is educational and does not constitute legal or tax advice. For case‑specific guidance, consult a licensed tax attorney or CPA with experience in state and federal tax appeals.

