An IRS audit letter for your business usually arrives with a short list of questions and a firm deadline. Most owners react by sending the agent everything they have. That instinct feels cooperative, but it often turns a three issue examination into a ten issue one.
At Dahir Tax and Accounting Firm, we represent business owners in IRS examinations. The work that saves our clients the most money happens before anyone sits down with a revenue agent: we define the scope of the audit, and then we hold the examination to it.
Key Points
- The IRS closed 497,621 audits in fiscal year 2025, and each business audit starts with a defined set of issues you can hold the agent to.
- A representative with Form 2848 authority can handle every contact with the IRS, so casual comments never open new issues.
What the Numbers Say About Business Audits Right Now
Audit odds for any single business stay low. The dollars at stake once the IRS picks your return do not. Here is what the IRS Data Book and IRS statements report:
| Measure | Figure | Source |
|---|---|---|
| Audits closed, FY 2025 | 497,621 | IRS Data Book, FY 2025 |
| Recommended additional tax from those audits | $26.8 billion | IRS Data Book, FY 2025 |
| Corporation return exam coverage, tax years 2015-2023 | 0.57% | IRS Data Book, FY 2025 |
| Individual return exam coverage, same years | 0.36% | IRS Data Book, FY 2025 |
| Third party information returns the IRS received, FY 2025 | 4.474 billion | IRS Data Book, FY 2025 |
| Corporate audit rate, tax year 2012 vs. 2018 | 1.3% to 0.6% | IRS statement, April 2023 |
| Partnership audit rate, tax year 2012 vs. 2018 | 0.3% to 0.1% | IRS statement, April 2023 |
Our own math: $26.8 billion spread across 497,621 closed audits comes to roughly $53,900 in recommended tax per audit. Large corporate cases pull that average up, so a typical small business adjustment runs lower. Still, the number shows why an unfocused audit gets expensive fast.
The 4.474 billion information returns matter too. W-2s, 1099s, and K-1s give the IRS a detailed picture of your income before the agent opens your file. A mismatch between those forms and your return often explains why the IRS selected you in the first place.
One caution on the coverage rates: the IRS notes that rates for recent tax years look artificially low because agents keep opening new exams until the statute of limitations runs out. Expect those percentages to climb.
Why Audits Grow
Revenue agents follow threads. That’s their job.
The Internal Revenue Manual (IRM 4.10) lets examiners widen an audit when they find a new issue during the exam. In our experience, the agent rarely discovers that new issue alone. The owner hands it over. These are the openings we see most often:
- Bank deposits that don’t reconcile to gross receipts on the return.
- An offhand remark about cash sales, a side business, or a family member “helping out.”
- S corporation owners who take large distributions and little or no salary.
- Form 941 filings that don’t tie to the W-2 totals for the year.
- The same deduction on a prior or later year return, which invites the agent to open that year as well.
Cooperation and volunteering are different things. You owe the IRS accurate answers to the questions it asks. You don’t owe it a guided tour of every loose end in your books.
How We Keep the Examination Focused
Our process follows the IRS examination sequence. Each step has one goal: a short list of issues that stays short.
| Stage | What We Do | Why It Matters |
|---|---|---|
| Day one | File Form 2848 (Power of Attorney) | Under IRC section 7521(c), the IRS generally cannot require you to attend an interview with your representative unless it issues an administrative summons. |
| Document requests | Answer each Form 4564 request exactly as written | We ask for written clarification on broad requests such as “all bank records” instead of guessing. |
| Document delivery | Organize records by issue, with a reconciliation and index | A clean package answers the question and leaves nothing to dig through. |
| Meetings | Attend in your place and prepare you for any business tour | Your representative speaks to the agent; you stay focused on running your company. |
| Statute extension requests | Negotiate a restricted consent on Form 872 | A restricted consent keeps the statute open only for the issues already under exam, not the whole return. |
| Closing | Review Form 4549 line by line before you sign | If the numbers are wrong, we file a protest after the 30 day letter and take the case to IRS Appeals. |
The Form 872 step deserves a closer look. Agents often ask for an extension near the end of the three year assessment window under IRC section 6501. Many owners sign the unrestricted version without reading it. That gives the IRS more time to examine anything on the return.
A restricted consent limits the extra time to named issues.
What to Do Before You Call Us
Keep it simple. The first week counts most.
- Write down the response deadline from the IRS letter.
- Don’t call the agent to “explain things” on your own.
- Pull the return under exam, your general ledger, and bank statements for that year.
- Leave your records as they are. Don’t recreate or edit old documents.
- Check your retention: the IRS generally expects income tax records for at least three years and employment tax records for at least four.
Bring those items to us, and we can usually map the likely scope of the audit in a single meeting.
Conclusion
A business audit covers what the IRS asks about, and disciplined representation keeps it that way from Form 2848 to the final report.
If an IRS letter just arrived, contact Dahir Tax and Accounting Firm before you reply, and we will build a response around the issues the agent actually raised.
