1. Triage the Notice before the Next Deadline Controls the Case
An audit can generate several IRS letters with different consequences. First identify the notice, proposed adjustment, and response date.
Separate the 30-Day Letter from the Deficiency Notice
| IRS Stage | Typical Decision | Timing |
|---|---|---|
| 30-Day Letter | Request Appeals review | Generally 30 days |
| Notice of Deficiency | Petition Tax Court | Generally 90 days |
| Qualifying Foreign Case | Petition Tax Court | 150 days may apply |
Do Not Treat Inaction As Signed Agreement
- A 30-Day Letter generally offers review by the IRS Independent Office of Appeals.
- Missing that opportunity does not mean the taxpayer signed Form 4549 or agreed to the report.
- The matter may instead move toward a Notice of Deficiency and a separate Tax Court filing period.
2. Preserve Penalty Defenses before Agreeing to Adjustments
Penalty disputes often depend on facts best documented during the examination. Before signing, separate the tax adjustment from any penalty defense.
Build Reasonable Cause Around the Actual Conduct
An IRS Audit Defense review can organize the tax and penalty issues.
- Document information supplied to tax professionals and steps taken to comply.
- Match reasonable cause or good faith to the specific penalty at issue.
- Do not assume the argument is automatically waived because it was omitted from an earlier response.
Review Form 4549 before Signing
- Compare proposed adjustments with the filed return and supporting records.
- Read agreement or waiver language before accepting the examiner's findings.
- If issues remain disputed, follow the protest instructions and deadline in the IRS letter.
3. Control Accountant Records and Privilege Questions
Document requests can reach ledgers, bank statements, workpapers, and correspondence. Preserve relevant material and analyze privilege document by document.
Know the Limits of Irc § 7525
- Ordinary accountant workpapers are not automatically protected by attorney-client privilege.
- IRC § 7525 can protect qualifying tax-advice communications with federally authorized tax practitioners in specified noncriminal federal tax matters.
- It does not cover criminal tax matters or turn pre-existing records into privileged material.
Respond to Record Requests Deliberately
- Preserve relevant records once an examination or related dispute is underway.
- Read each Information Document Request or summons before producing material.
- State any privilege or lawful objection with a specific legal basis.
4. Protect the Tax Court Filing Period
A Notice of Deficiency changes the procedural choices. Continued correspondence with IRS personnel does not, by itself, extend the statutory period for a prepayment Tax Court challenge.
Calendar the Statutory Date Immediately
A Tax Disputes analysis can distinguish Tax Court litigation from a later refund route.
- IRC § 6213(a) generally provides 90 days from the notice date to petition the Tax Court.
- A 150-day period can apply in qualifying circumstances involving a taxpayer outside the United States.
- Use the date printed on the notice as a trigger and independently confirm the statutory deadline.
Know What a Late Petition Changes
- If no timely petition is filed, the IRS can generally assess the deficiency after the restriction ends.
- Losing the prepayment Tax Court route does not automatically eliminate every federal remedy.
- A refund suit may remain possible after payment and a proper administrative claim, subject to separate rules.
5. Decide Whether an Amended Return Improves the Position
Form 1040-X can correct an error or support a refund claim, but filing during an audit may change the record. The decision should fit the examination posture.
Compare Amendment with Defending the Filed Return
- Identify what factual or legal position the amendment would change.
- Reconcile new statements with information already supplied during the audit.
- Do not treat an amended return as automatically tolling assessment periods or creating claim preclusion.
Keep Assessment and Refund Periods Separate
Statute of Limitations on Tax issues should be checked before the strategy changes.
- Analyze the IRS assessment period separately from the refund-claim period.
- IRC § 6511 generally uses a three-year-from-filing or two-year-from-payment framework for refund claims, subject to exceptions.
- Account for any valid agreement extending the assessment period.
6. Recognize When a Civil Audit Creates Criminal Tax Risk
A civil examination does not become criminal because the IRS questions an item. The risk changes if suspected fraud leads to IRS-CI involvement or a Special Agent interview.
Identify the Change in Investigative Posture
- Confirm whether contact comes from a Revenue Agent or an IRS-CI Special Agent.
- Assess interview requests, summonses, subpoenas, and document demands before responding.
- Consider how further statements may affect both civil and potential criminal positions.
Preserve the Record before Further Statements
Criminal Tax Defense becomes relevant if the matter moves beyond a routine examination.
- Preserve evidence; do not alter, destroy, or selectively reconstruct records.
- Do not assume IRC § 7525 protects communications in a criminal tax matter.
- Evaluate potential willfulness issues before offering explanations in a criminal investigation.
7. Frequently Asked Questions
Can I challenge a deficiency in Tax Court before paying it?
Generally, yes, if the IRS issues a Notice of Deficiency and the taxpayer files a timely petition. Other disputes may follow different procedures.
Does signing Form 4549 end an IRS audit dispute?
Signing examination documents can affect which issues remain open. Review the proposed adjustments and any agreement or waiver language before signing.
Can an accountant's records be withheld as privileged?
Not automatically. IRC § 7525 provides limited protection for qualifying tax-advice communications in specified noncriminal federal tax matters, not a blanket privilege for accounting records.
What if an IRS-CI Special Agent contacts me during an audit?
The contact signals a different investigative posture. Before an interview or additional production, consider privilege, Fifth Amendment rights, and the existing civil tax position.
8. Act before the Audit Reaches the Next Decision Point
An IRS tax audit defense attorney in Manhattan can evaluate the current notice, the record already produced, and the next enforceable deadline. SJKP's attorneys can assess federal audit procedure, penalty defenses, Tax Court timing, privilege issues, and potential criminal exposure against the documented facts.
11 Sep, 2026
