The rules the exam tests
| Rule | What it says (2025) | Source |
|---|---|---|
| Failure to file | 5% per month, max 25%; reduced by FTP for the same month | IRC 6651(a)(1), (c) |
| Failure to pay | 0.5% per month, max 25%; 1% after levy notice; 0.25% during IA | IRC 6651(a)(2), (d), (h) |
| First-time abatement | FTF, FTP, FTD; no penalties prior 3 years (except ES), compliant | IRM 20.1.1.3.3.2.1 |
| Reasonable cause | Ordinary business care: death, serious illness, casualty, records unavailable | IRC 6651(a); IRM 20.1.1 |
| Not reasonable cause | Relying on an agent to file (Boyle), ignorance, lack of funds (usually) | U.S. v. Boyle (1985) |
| Erroneous IRS written advice | Mandatory abatement | IRC 6404(f) |
| Interest abatement | IRS ministerial/managerial error or delay | IRC 6404(e) |
| Interest suspension | No notice within 36 months of timely return | IRC 6404(g) |
| Estimated tax penalty | Waived only for casualty/disaster or retirement at 62+/disability with reasonable cause | IRC 6654(e)(3) |
| Request | Phone, notice response, or Form 843 | IRS |
Facts: A taxpayer with no penalties in 2022-2024 files her 2025 return 3 months late (July 2026) owing $10,000, which she pays with the return.
Penalties: FTF 4.5% x 3 = 13.5% ($1,350) + FTP 0.5% x 3 = 1.5% ($150) = $1,500, plus interest. She qualifies for first-time abatement of both penalties; the interest on the tax stays, but interest on the abated penalties is removed.
Exam traps
- Combined FTF + FTP is 5% a month, not 5.5%.
- Reliance on a preparer to file is not reasonable cause; reliance on substantive advice may be.
- Interest cannot be abated for reasonable cause.
- FTA does not apply to accuracy-related penalties.
Penalties and penalty abatement: 10 free practice questions
Penalties and penalty abatement practice questions
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Frequently asked questions
What is first-time penalty abatement?
An IRS administrative waiver of failure-to-file, failure-to-pay or failure-to-deposit penalties for taxpayers with no penalties in the prior 3 years who are otherwise compliant.
Can IRS interest be waived?
Only in limited cases, such as unreasonable IRS delays in ministerial or managerial acts, or when the penalty it was charged on is abated.
Sources
- IRS - Administrative penalty relief (first-time abatement) (accessed 2026-09-23)
- IRS - Penalty relief for reasonable cause (accessed 2026-09-23)
- IRS - SEE Part 3 content specifications (Representation, Practices and Procedures) (accessed 2026-09-23)
- IRS - Enrolled agents: Frequently asked questions (accessed 2026-09-23)