06/02/2026
"I got an IRS letter."
Six words that ruin a Tuesday afternoon. Here's what most Fort Worth business owners don't know: most IRS letters aren't audits.
They're notices. Different category, different stakes, different response timeline.
The 5 most common letters we see:
1️⃣ CP2000: a mismatch notice. The IRS thinks you forgot to report some income. Usually fixable in writing.
2️⃣ CP501/503: balance due reminders. Pay or set up a payment plan. Don't ignore.
3️⃣ CP90: final notice before levy. This one is real. Respond fast.
4️⃣ Letter 525 (or 30-day letter): proposed audit changes. You have 30 days to disagree.
5️⃣ Letter 2205-A: actual audit notice. Yes, the real one.
The HVAC and trade businesses get flagged most often on three things: vehicle deductions claimed at 100% business use, equipment Section 179 elections that look aggressive, and cash deposits that don't tie to reported revenue.
Most of these are paperwork problems, not crimes. The fix is documentation, not a panic-call to a tax attorney.
If you got a letter, don't ignore it. Don't call the number on TV. Bring it to your CPA.
Full guide to every notice type: https://adamtraywick.com/irs-audit-and-notice-guide/
Complete IRS audit guide for small business owners: audit triggers, types (correspondence, office, field), CP2000 notice handling, response procedures, statute of limitations, and when to hire representation.