Form 1065-X – Amended Return or Administrative Adjustment Request (AAR)

Last reviewed: 2025-10-26

Use the Form 1065x: Form 1065-X – Amended Return or Administrative Adjustment Request (AAR) Tax Form Calculator Form 1065x: Form 1065-X – Amended Return or Administrative Adjustment Request (AAR) as a stand alone tax form calculator to quickly calculate specific amounts for your 2026 1065x 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.

Form 1065-X is used by partnerships to correct previously filed Form 1065 returns or to file an Administrative Adjustment Request (AAR) under the centralized partnership audit regime. Whether correcting income, deductions, or partner allocations, this form ensures compliance and transparency when amending returns.The key lines of Form 1065-X allow for side-by-side reconciliation:

Column a: Amounts as originally reported or previously adjusted.
Column b: Net change — increases or (decreases).
Column c: Correct amount after adjustments.
Column d: Text explanation of each change.

This calculator auto-computes Column c by summing Columns a and b. The taxpayer must explain each change in Column d. Accurate and consistent entry across all sections is essential for IRS acceptance.

Amended Return or Administrative Adjustment Request (AAR)
TEFRA/NonTEFRA Determination
A	Has the partnership made an election to be treated as an electing large partnership (ELP) under the provisions of section 775? Yes No If "Yes," the partnership is not subject to TEFRA. Enter the date of the election ▸ , go to Item E, and check the "Not subject to TEFRA" box. Do not complete Items B through D.
You must determine if the partnership is subject to the rules for consolidated audit proceedings (TEFRA proceedings) under sections 6221 through 6234. See instructions for details.
B	Did the partnership have 10 or fewer partners at all times during the tax year? (Note. A husband and wife are considered one partner for TEFRA purposes.) Yes No
C	At all times during the partnership's tax year, were all partners U.S. citizens, resident aliens, C corporations, or estates of deceased partners? Yes No
If the answers to questions B and C are "Yes," the partnership is not subject to TEFRA proceedings. A partnership that is not subject to TEFRA cannot file an Administrative Adjustment Request. See instructions for details.
D	If the partnership is not otherwise subject to TEFRA, has the partnership filed Form 8893, Election of Partnership Level Tax Treatment, or its equivalent, to make an election to be treated as a TEFRA partnership? Yes No
If the answer to question D is "Yes," enter the tax year that the election to be treated as a TEFRA partnership was originally filed with the partnership return ▸
E	The partnership is Subject to TEFRA Not subject to TEFRA
F	Check the applicable box (see instructions): Amended Return Administrative Adjustment Request (AAR)
G	If you are a Tax Matters Partner (TMP) or a Partner With Authority (PWA) filing an AAR on behalf of the pass-through entity, are you requesting substituted return treatment? (see instructions) Yes No
H	Check the applicable box to identify the type of pass-through entity: Partnership Electing Large Partnership (ELP) Real Estate Mortgage Investment Conduit (REMIC)
I	Partnerships and ELPs, enter the number of Schedules K-1 being filed with this return ▸
Fill in applicable items and use Part III to explain any changes
Part I Amended or Administrative Adjustment Request (AAR) Items for Partnerships Filing Form 1065 Only (ELPs and REMICs, use Part II)				(a) As originally reported on Schedule K or as previously adjusted	(b) Net change — increase or (decrease) — explain in Part III		(c) Correct amount
Income (Loss)	1	Ordinary business income (loss)	1
	2	Net rental real estate income (loss)	2
	3	Other net rental income (loss) (see instructions)	3
	4	Guaranteed payments	4
	5	Interest income	5
	6a	Ordinary dividends	6a
	b	Qualified dividends	6b
	7	Royalties	7
	8	Net short-term capital gain (loss)	8
	9a	Net long-term capital gain (loss)	9a
	b	Collectibles (%) gain (loss)	9b
	c	Unrecaptured section 1250 gain (see instructions)	9c
	10	Net section 1231 gain (loss)	10
	11	Other income (loss) (see instructions)	11
Deductions	12	Section 179 deduction	12
	13a	Contributions	13a
	b	Investment interest expense	13b
	c	Section 59(e) expenditures	13c
	d	Other deductions (see instructions)	13d
Self- Employment	14a	Net earnings (loss) from self-employment	14a
	b	Gross farming or fishing income	14b
	c	Gross nonfarm income	14c
Credits	15a	Low-income housing credit (section 42(j)(5))	15a
	b	Low-income housing credit (other)	15b
	c	Qualified rehabilitation expenditures (rental real estate)	15c
	d	Other rental real estate credits (see instructions)	15d
	e	Other rental credits (see instructions)	15e
	f	Other credits (see instructions)	15f
Foreign Transactions	16a	Name of country or U.S. possession ▸
	b	Gross income from all sources	16b
	c	Gross income sourced at partner level	16c
	d	Foreign gross income sourced at partnership level passive category	16d
	e	Foreign gross income sourced at partnership level general category	16e
	f	Foreign gross income sourced at partnership level other	16f
	g	Deductions allocated and apportioned at partner level interest expense	16g
	h	Deductions allocated and apportioned at partner level other	16h
	i	Deductions allocated and apportioned at partnership level to foreign source income passive category	16i
	j	Deductions allocated and apportioned at partnership level to foreign source income general category	16j
	k	Deductions allocated and apportioned at partnership level to foreign source income other	16k
	l	Total foreign taxes (check one) ▸ Paid Accrued	16l
	m	Reduction in taxes available for credit (see instructions)	16m
	n	Other foreign tax information (see instructions)
Alternative Minimum Tax (AMT) Items	17a	Post-1986 depreciation adjustment	17a
	b	Adjusted gain or loss	17b
	c	Depletion (other than oil or gas)	17c
	d	Oil, gas, and geothermal properties—gross income	17d
	e	Oil, gas, and geothermal properties—deductions	17e
	f	Other AMT Items (see instructions)	17f
Other Information	18a	Tax-exempt interest income	18a
	b	Other tax-exempt income	18b
	c	Nondeductible expenses	18c
	19a	Distributions of cash and marketable securities	19a
	b	Distributions of other property	19b
	20a	Investment income	20a
	b	Investment expenses	20b
	c	Other items and amounts (see instructions)	20c
Note. Amended Schedules K-1: File amended Schedules K-1 with Form 1065X. If the partnership is filing Form 1065X for an administrative adjustment request (AAR), please inform the partners receiving the amended Schedules K-1 that the partnership is filing the AAR. If the partnership is not subject to the rules for consolidated audit proceedings (TEFRA proceedings) under sections 6221 through 6234, the partnership cannot file an AAR; and instead must furnish the amended Schedules K-1 to its partners. The partners must then file their own amended returns (see instructions).
Part II Amended or Administrative Adjustment Request (AAR) Items for ELPs and REMICs Only
(a) Description of Item Being Amended or Adjusted (see instructions)				(b) As originally reported or as previously adjusted	(c) Net change — increase or (decrease) — explain in Part III		(d) Correct amount
1			1
2			2
3			3
4			4
5			5
Tax and Payments (see instructions)
6	ELPs ONLY: Tax and other payments		6
7	REMICs ONLY: Tax on net income from prohibited transactions		7
8	REMICs ONLY: Tax on net income from foreclosure property		8
9	REMICs ONLY: Tax on contributions after the startup day		9
10	Total tax		10
11	Tax paid with Form 7004		11
12	Tax paid with (or after) the filing of the original return					12
13	Add lines 11 and 12, column (d)					13
14	Overpayment, if any, as shown on original return or as later adjusted					14
15	Subtract line 14 from line 13					15
Tax Due or Overpayments (see instructions)
16	Tax Due. Subtract line 15 from line 10, column (d). For details on how to pay, see instructions					16
17	Overpayment. Subtract line 10, column (d), from line 15					17
Note. Amended Schedules K-1 or Schedules Q. File amended Schedules K-1 or Schedules Q with Form 1065X. If the ELP or REMIC is filing Form 1065X for an administrative adjustment request (AAR), do not furnish the amended Schedules K-1 or Schedules Q to the partners or residual interest holders. If the REMIC is not filing for an AAR and is not subject to the rules for consolidated audit proceedings under sections 6221 through 6231, the REMIC must furnish the amended Schedules Q to its residual interest holders. See instructions for details.

Partnerships filing an AAR must check the appropriate boxes indicating push-out or modification treatment, if applicable. In cases of audit, amended returns must follow specific instructions based on the audit year. Supporting documentation may be required to validate adjustments, especially for items like capital account reallocation, amended Schedule K-1 issuance, or omitted deductions.

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

You can complete the latest revision of Form 1065-X (Rev. Dec 2021) online using our 1065-X Calculator. This tool supports accurate computation of revised lines and allows partnerships to submit adjustments clearly and completely. Always consult the official IRS instructions before filing: i1065x.pdf.

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.