Got an IRS letter about crypto?
The IRS sends crypto-related notices such as Letters 6173 and 6174, CP2000, and CP2501. Gordon Law's crypto tax page lists all four (gordonlaw.com/crypto-tax, checked 2026-10-21). Each notice has its own deadline, so read yours carefully. This page is not legal advice.
Firms that say they handle IRS notices and audits
| Firm | What they state | Source |
|---|---|---|
| Gordon Law | Crypto audit defense and IRS crypto letters (6173, 6174, CP2000, CP2501). Founded by a tax attorney and CPA. Skokie, IL. | Firm site, 2026-10-21 |
| Darien Advisors | Notice response, 1099-DA mismatches, missed filings, IRS representation | Firm site, 2026-10-21 |
| Chainwise CPA | Crypto tax resolution, including IRS and state audits and notices | Firm site, 2026-10-21 |
| Crypto Tax Made Easy | CP2000 defense when mismatches come up | Summ partner list, 2026-10-21 |
Licenses are not yet verified. Check a CPA at CPAverify and an attorney with their state bar.
Not sure which letter you have? Letter 6173 vs CP2000 · Missing 1099-DA cost basis