Rule Atlas
IRC § 6651(a): IRS Penalties and Abatement: From Assessment to Relief
Under IRC § 6651(a) (IRS / Treasury Circular 230), iRS Penalties and Abatement: From Assessment to Relief establishes the authoritative rules tested on the IRS Enrolled Agent (EA). Master the calculation and interaction of key IRS penalties, including Failure to File, Failure to Pay, and Accuracy-Related. VoraPrep verifies every threshold, worked table, and practice question below against the current IRS Enrolled Agent (EA) blueprint.
Penalty Comparison at a Glance
| Feature | Failure to File (FTF) Penalty | Failure to Pay (FTP) Penalty |
|---|---|---|
| IRC Section | §6651(a)(1) | §6651(a)(2) |
| Monthly Rate | 5% of unpaid tax | 0.5% of unpaid tax |
| Maximum Penalty | 25% (reached in 5 months) | 25% (reached in 50 months) |
| Combined Rate | When both apply, FTF is reduced to 4.5% for a total of 5% per month. | Included in the 5% combined rate for the first 5 months. |
Leo, a self-employed consultant, received a notice from the IRS assessing a failure-to-pay penalty on his 2024 income tax liability, which was due April 15, 2025. Leo did not pay the balance due until July 20, 2025. He wishes to request an abatement of the penalty. Which of the following circumstances is most likely to be accepted by the IRS as reasonable cause for the abatement?
Worked Example: Calculating Combined Penalties
Scenario. Liam, a single individual, determines he owes $8,000 in income tax for 2025. The due date is April 15, 2026. He does not file an extension. He ultimately files his return and pays the full $8,000 on September 20, 2026.
- Let's calculate his combined Failure to File (FTF) and Failure to Pay (FTP) penalties.
- Step 1: Determine the Number of Late Months A 'month' for penalty purposes is any part of a calendar month. The return and payment are late for: Part of May (Month 1) All of June (Month 2) All of July (Month 3) All of August (Month 4) Part of September (Month 5)
- This is a total of 5 months for both penalties.
- Step 2: Calculate the Combined Penalty Using the Interaction Rule Per IRC § 6651, when both the FTF and FTP penalties apply in the same month, the combined maximum rate is 5% per month. The FTF penalty is effectively reduced from 5% to 4.5% to accommodate the 0.5% FTP penalty.
Common IRS Enrolled Agent (EA) Distractors on IRC § 6651(a)
- 1Every penalty question on the SEE follows the same underlying structure. Use this 5-step decision framework and you'll rarely miss one:
- 2Think of penalty calculations like mixing a chemical formula: the ingredients (base, rate, time) must be exact, and the order of operations (like the FTF/FTP offset) matters. One wrong measurement spoils the result.
- 3Navigating IRS penalties is a core function of an Enrolled Agent. Remember these key points:
- 4The Failure to File (FTF) penalty (5%/month) is ten times higher than the Failure to Pay (FTP) penalty (0.5%/month).
- 5When both FTF and FTP apply, the combined rate is 5% per month for the first five months.
Frequently Asked Questions: IRC § 6651(a)
What is the core rule under IRC § 6651(a) (IRS Penalties and Abatement: From Assessment to Relief)?
Under IRC § 6651(a) (IRS / Treasury Circular 230), iRS Penalties and Abatement: From Assessment to Relief establishes the authoritative rules tested on the IRS Enrolled Agent (EA). Master the calculation and interaction of key IRS penalties, including Failure to File, Failure to Pay, and Accuracy-Related. VoraPrep verifies every threshold, worked table, and practice question below against the current IRS Enrolled Agent (EA) blueprint.
How is IRC § 6651(a) tested on the IRS Enrolled Agent (EA)?
Every penalty question on the SEE follows the same underlying structure. Use this 5-step decision framework and you'll rarely miss one: Think of penalty calculations like mixing a chemical formula: the ingredients (base, rate, time) must be exact, and the order of operations (like the FTF/FTP offset) matters. One wrong measurement spoils the result.
Where can I practice IRS Enrolled Agent (EA) questions on IRS Penalties and Abatement: From Assessment to Relief?
Test yourself instantly with the free playable IRS Enrolled Agent (EA) question on this page, or launch VoraPrep's full IRS Enrolled Agent (EA) adaptive question bank, interactive lessons, and 1:1 exam simulator at voraprep.com/ea-prep.