Form 8801 – Credit for Prior Year Minimum Tax

Last reviewed: 2025‑10‑26

Use the IRS Form 8801: Credit for Prior Year Minimum Tax (Individuals, Estates & Trusts) Tax Form Calculator IRS Form 8801: Credit for Prior Year Minimum Tax (Individuals, Estates & Trusts) as a stand alone tax form calculator to quickly calculate specific amounts for your 2026 8801 state tax return. Alternatively, you can use one of our Combined Federal and State Tax Estimators to quickly calculate your salary, tax, and take-home pay.

IRS Form 8801 is used by individuals, estates, and trusts to calculate and claim the minimum tax credit (MTC), which arises when you paid Alternative Minimum Tax (AMT) in a previous year and now may use that AMT paid as a credit against your regular tax liability.

Who should file Form 8801?

If you (or an estate/trust) paid AMT in a prior year and now have a situation where you don’t owe AMT but can use the credit.
If you reported a credit carryforward on last year’s Form 8801 (line 26) that you want to utilise.
If you had an unallowed qualified electric vehicle credit and meet the special rules for entering it here.
Filing is required only if line 21 of the form is more than zero — otherwise you don’t need to attach it to your return.

Credit for Prior Year Minimum Tax— Individuals, Estates, and Trusts
Part I. Net Minimum Tax on Exclusion Items
1	Combine lines 1, 6, and 10 of your 2015 Form 6251. Estates and trusts, see instructions	1
2	Enter adjustments and preferences treated as exclusion items (see instructions)	2
3	Minimum tax credit net operating loss deduction (see instructions)	3
4	Combine lines 1, 2, and 3. If zero or less, enter -0- here and on line 15 and go to Part II. If more than $246,250 and you were married filing separately for 2015, see instructions	4
5	Enter: $83,400 if married filing jointly or qualifying widow(er) for 2015; $53,600 if single or head of household for 2015; or $41,700 if married filing separately for 2015. Estates and trusts, enter $23,800	5
6	Enter: $158,900 if married filing jointly or qualifying widow(er) for 2015; $119,200 if single or head of household for 2015; or $79,450 if married filing separately for 2015. Estates and trusts, enter $79,450	6
7	Subtract line 6 from line 4. If zero or less, enter -0- here and on line 8 and go to line 9	7
8	Multiply line 7 by 25% ().	8
9	Subtract line 8 from line 5. If zero or less, enter -0-. If under age 24 at the end of 2015, see instructions	9
10	Subtract line 9 from line 4. If zero or less, enter -0- here and on line 15 and go to Part II. Form 1040NR filers, see instructions	10
11	• If for 2015 you filed Form 2555 or 2555-EZ, see instructions for the amount to enter. • If for 2015 you reported capital gain distributions directly on Form 1040, line 13; you reported qualified dividends on Form 1040, line 9b (Form 1041, line 2b(2)); or you had a gain on both lines 15 and 16 of Schedule D (Form 1040) (lines 18a and 19, column (2), of Schedule D (Form 1041)), complete Part III of Form 8801 and enter the amount from line 55 here. Form 1040NR filers, see instructions. • All others: If line 10 is $185,400 or less ($92,700 or less if married filing separately for 2015), multiply line 10 by 26% (0.26). Otherwise, multiply line 10 by 28% (0.28) and subtract $3,708 ($1,854 if married filing separately for 2015) from the result. Form 1040NR filers, see instructions.	11
12	Minimum tax foreign tax credit on exclusion items (see instructions)	12
13	Tentative minimum tax on exclusion items. Subtract line 12 from line 11	13
14	Enter the amount from your 2015 Form 6251, line 34, or 2015 Form 1041, Schedule I, line 55	14
15	Net minimum tax on exclusion items. Subtract line 14 from line 13. If zero or less, enter -0-	15
Part II. Minimum Tax Credit and Carryforward to 2017
16	Enter the amount from your 2015 Form 6251, line 35, or 2015 Form 1041, Schedule I, line 56	16
17	Enter the amount from line 15	17
18	Subtract line 17 from line 16. If less than zero, enter as a negative amount	18
19	2015 credit carryforward. Enter the amount from your 2015 Form 8801, line 26	19
20	Enter your 2015 unallowed qualified electric vehicle credit (see instructions)	20
21	Combine lines 18 through 20. If zero or less, stop here and see the instructions	21
22	Enter your 2016 regular income tax liability minus allowable credits (see instructions)	22
23	Enter the amount from your 2016 Form 6251, line 33, or 2016 Form 1041, Schedule I, line 54	23
24	Subtract line 23 from line 22. If zero or less, enter -0-	24
25	Minimum tax credit. Enter the smaller of line 21 or line 24. Also enter this amount on your 2016 Form 1040, line 54 (check box b); Form 1040NR, line 51 (check box b); or Form 1041, Schedule G, line 2c	25
26	Credit carryforward to 2017. Subtract line 25 from line 21. Keep a record of this amount because you may use it in future years	26
Part III. Tax Computation Using Maximum Capital Gains Rates Complete Part III only if you are required to do so by line 11 or by the Foreign Earned Income Tax Worksheet in the instructions.
	Caution: If you didn't complete the 2015 Qualified Dividends and Capital Gain Tax Worksheet, the 2015 Schedule D Tax Worksheet, or Part V of the 2015 Schedule D (Form 1041), see the instructions before completing this part.*
27	Enter the amount from Form 8801, line 10. If you filed Form 2555 or 2555-EZ for 2015, enter the amount from line 3 of the Foreign Earned Income Tax Worksheet in the instructions Caution: If for 2015 you filed Form 1040NR, 1041, 2555, or 2555-EZ, see the instructions before completing lines 28, 29, and 30.	27
28	Enter the amount from line 6 of your 2015 Qualified Dividends and Capital Gain Tax Worksheet, the amount from line 13 of your 2015 Schedule D Tax Worksheet, or the amount from line 26 of the 2015 Schedule D (Form 1041), whichever applies* If you figured your 2015 tax using the 2015 Qualified Dividends and Capital Gain Tax Worksheet, skip line 29 and enter the amount from line 28 on line 30. Otherwise, go to line 29.	28
29	Enter the amount from line 19 of your 2015 Schedule D (Form 1040), or line 18b, column (2), of the 2015 Schedule D (Form 1041)	29
30	Add lines 28 and 29, and enter the smaller of that result or the amount from line 10 of your 2015 Schedule D Tax Worksheet	30
31	Enter the smaller of line 27 or line 30	31
32	Subtract line 31 from line 27	32
33	If line 32 is $185,400 or less ($92,700 or less if married filing separately for 2015), multiply line 32 by 26% (0.26). Otherwise, multiply line 32 by 28% (0.28) and subtract $3,708 ($1,854 if married filing separately for 2015) from the result. Form 1040NR filers, see instructions	33
34	Enter: • $74,900 if married filing jointly or qualifying widow(er) for 2015, • $37,450 if single or married filing separately for 2015, • $50,200 if head of household for 2015, or • $2,500 for an estate or trust. Form 1040NR filers, see instructions.	34
35	Enter the amount from line 7 of your 2015 Qualified Dividends and Capital Gain Tax Worksheet, the amount from line 14 of your 2015 Schedule D Tax Worksheet, or the amount from line 27 of the 2015 Schedule D (Form 1041), whichever applies. If you didn't complete either worksheet or Part V of the 2015 Schedule D (Form 1041), enter the amount from your 2015 Form 1040, line 43, or 2015 Form 1041, line 22, whichever applies; if zero or less, enter -0-. Form 1040NR filers, see instructions	35
36	Subtract line 35 from line 34. If zero or less, enter -0-	36
37	Enter the smaller of line 27 or line 28	37
38	Enter the smaller of line 36 or line 37	38
39	Subtract line 38 from line 37	39
40	Enter: • $413,200 if single for 2015, • $232,425 if married filing separately for 2015, • $464,850 if married filing jointly or qualifying widow(er) for 2015, • $439,000 if head of household for 2015, or • $12,300 for an estate or trust. Form 1040NR filers, see instructions	40
41	Enter the amount from line 36	41
42	Form 1040 filers, enter the amount from line 7 of your 2015 Qualified Dividends and Capital Gain Tax Worksheet or the amount from line 19 of your 2015 Schedule D Tax Worksheet, whichever applies. If you didn't complete either worksheet, see instructions. Form 1041 filers, enter the amount from line 27 of your 2015 Schedule D (Form 1041) or line 18 of your 2015 Schedule D Tax Worksheet, whichever applies. If you didn't complete either the worksheet or Part V of the 2015 Schedule D (Form 1041), enter the amount from your 2015 Form 1041, line 22; if zero or less, enter -0-. Form 1040NR filers, see instructions	42
Part III. Tax Computation Using Maximum Capital Gains Rates (continued)
43	Add lines 41 and 42	43
44	Subtract line 43 from line 40. If zero or less, enter -0-	44
45	Enter the smaller of line 39 or line 44	45
46	Multiply line 45 by 15% ()	46
47	Add lines 38 and 45 If lines 47 and 27 are the same, skip lines 48 through 52 and go to line 53. Otherwise, go to line 48.	47
48	Subtract line 47 from line 37	48
49	Multiply line 48 by 20% () If line 29 is zero or blank, skip lines 50 through 52 and go to line 53. Otherwise, go to line 50.	49
50	Add lines 32, 47, and 48	50
51	Subtract line 50 from line 27	51
52	Multiply line 51 by 25% ()	52
53	Add lines 33, 46, 49, and 52	53
54	If line 27 is $185,400 or less ($92,700 or less if married filing separately for 2015), multiply line 27 by 26% (0.26). Otherwise, multiply line 27 by 28% (0.28) and subtract $3,708 ($1,854 if married filing separately for 2015) from the result. Form 1040NR filers, see instructions	54
55	Enter the smaller of line 53 or line 54 here and on line 11. If you filed Form 2555 or 2555-EZ for 2015, don't enter this amount on line 11. Instead, enter it on line 4 of the Foreign Earned Income Tax Worksheet in the instructions for line 11	55

Key computation steps and practical considerations:

When completing Form 8801, you’ll break the process into three parts: Part I computes your net minimum tax on exclusion items; Part II determines your minimum tax credit and carryforward; and if required, Part III handles special capital-gain computations under the maximum capital gains rate. Errors commonly arise when taxpayers misclassify “exclusion items” vs “deferral items” on line 2 or skip the capital gains part altogether.

It’s also essential to match your entries with prior‑year AMT filings — the credit is only allowed to the extent it corresponds to AMT paid due to deferral items, not exclusion items. For example, if your AMT resulted primarily from large state and local tax deductions (which are exclusion items), you may not get full credit via Form 8801.

For estates or trusts, unique rules apply: Schedule I (Form 1041) may be used as a worksheet even though it’s not attached to the return; be sure to keep it in your records. Additionally, if you filed Form 2555 (Foreign Earned Income) or reported qualified dividends/capital gains, the instructions require specific worksheets or noted adjustments.

Last reviewed: 2025‑10‑26: If you believe this form requires an update, please contact us.

Filing tips and carryforward management

To make the most of your credit and avoid compliance issues, start by verifying your tax records: locate the AMT paid in the relevant year, identify the nature of the items that caused the AMT, and maintain your documentation. Since the credit is a carryforward, track it carefully year to year — you’ll want to know your remaining unused credit and whether you still meet the criteria to utilise it.

Consider integrating a tax‑software tool or spreadsheet that tracks AMT liability and credit utilisation across years. That way when you fill out Form 8801, you can import or reference prior‑year details instead of re‑creating the entire history each time. Also, watch for statute of limitations issues: while the credit can carry forward indefinitely, the underlying documentation must be retained (typically 3 years) and the credit must be claimed on timely filed returns.

Finally, if you are a tax advisor or are handling an estate/trust, clearly explain to your client that although filing Form 8801 does not necessarily mean a refund, it can significantly reduce future tax liability. Present the credit as part of long‑term tax planning — not just as a one‑time form filing.

Frequently Asked Questions

Can I estimate the General Business Credit?

Start with Form 3800 and then reflect the credit here.

How much would a 401(k) contribution change my net?

Model it with the 401(k) Calculator then rerun this page with your pre-tax amount.

Considering an IRS Offer in Compromise?

Read through Form 656-B to understand eligibility and steps.

What does FICA include?

FICA includes Social Security and Medicare payroll taxes withheld from employee wages.

Is there a quick pay-frequency comparison?

Yes—switch frequency on this page; for employer filings see 941 vs 944.

Important Notes

All calculations are estimates for guidance only. Always review your return and consider professional advice when submitting official filings.

Form 8801 – Credit for Prior Year Minimum Tax