Form 1065-X Checklist for Tax Year 2023
Year Audit(2023-Specific Applications to This Form)
The following apply to Form 1065-X filed for tax years beginning on or after January 1, 2023:
The Bipartisan Budget Act's centralized partnership audit regime applies to all partnerships with tax years beginning after 2017, unless eligible partnerships validly elect out under Section 6221(b). Schedules K-2 and K-3 amendments must be included if partnership reports international tax items or if specific partners request Schedule K-3 on or before the one-month date before filing. No Economic Impact Payment (EIP) reconciliation, Affordable Care Act shared responsibility payment provisions, unemployment exclusion, or temporary ARPA expansions apply to 2023 Form 1065-X filings. TCJA tax rates remain in effect (37% highest individual rate for 2023). Increased research credits claimed on amended returns must be supported by five specific information items when filed as AAR.
Form Audit (1065-X Specific Restrictions and Requirements)
Form 1065-X may NOT be used to file notice of inconsistent treatment under section 6222 or partner-level AAR under section 6227(d) for TEFRA proceedings; use Form 8082 for those purposes instead. Form 1065-X is restricted to amended returns and entity-level AARs for partnerships, ELPs, and REMICs. BBA partnerships filing an AAR must designate a partnership representative (PR) and any appointed designated individual (DI). TMP is required for TEFRA partnerships, and PWA is required for ELPs. Non-BBA partnerships with pass-through partners as owners cannot elect out of the BBA regime; only partnerships with 100 or fewer eligible partners that are all individuals, C corporations, certain foreign entities, S corporations, or estates of deceased partners may elect out and file Form 1065-X as an amended return instead of an AAR.
Why 2023 Form 1065-X Is Unique
For 2023, Form 1065-X distinctly addresses centralized BBA partnership audit procedures, which require careful imputed underpayment calculations and mandatory push-out elections for unfavorable adjustments. Redesigned line 13 separates cash and noncash contributions. Schedules K-2 and K-3 amendments apply to partnerships with international tax items or partners requesting Schedule K-3 reporting.
This checklist is for educational purposes only and does not constitute tax or legal advice. Always review official IRS instructions and consult a qualified professional for guidance.
Year-Specific Programs Applying To 2023 Form 1065-X
The centralized partnership audit regime under the BBA continues for all partnerships with tax years beginning after 2017, unless they are validly elected out. Partnerships reporting increased research credits must file an AAR with five required information items (business components, research activities, individual performer names, information sought, and qualified expense totals) rather than a standard amended return. No stimulus reconciliation, ACA mandate, or special unemployment provisions apply to 2023 Form 1065-X filings.
Ten-Step Checklist For Filing Form 1065-X (Tax Year 2023)
Step 1: Determine Partnership Type and AAR Filing Status
Identify whether the partnership is subject to a centralized audit regime under BBA (tax years beginning after 2017) or elected out under section 6221(b). BBA partnerships must file Form 1065-X as an amended return; non-BBA partnerships may file Form 1065-X as an amended return on paper. Small partnerships (10 or fewer partners, all U.S. individuals, resident aliens, C corporations, or estates of deceased partners) may elect TEFRA treatment. Determine whether the partnership is an ELP or REMIC, as this will require the use of Part III instead of Part II.
Step 2: Verify Filing Deadline and Statute Limitations
File Form 1065-X within three years after the later of (i) the date the original partnership return was filed or (ii) the last day for filing the partnership return (excluding extensions). For BBA partnerships, file before notice of administrative proceeding is mailed under section 6231. For TEFRA partnerships or REMICs, file before notice of final partnership administrative adjustment is sent to the tax matters partner or tax matters person. No AAR may be filed after notice of the administrative proceeding is mailed.
Step 3: Gather All Original Partnership Documentation
Obtain a copy of the originally filed Form 1065 (or 1065-B or 1066). Collect the trial balance report from the company books for the tax year being amended. Gather bank and credit card statements supporting business expenses. Compile copies of all Forms 1099-B, 1099-DIV, 1099-INT, 1099-K, and 1099-MISC received by the partnership and copies of Forms 1099 and W-2 issued by the partnership. For multistate operations, compile sales, payroll, and property values by state.
This checklist is for educational purposes only and does not constitute tax or legal advice. Always review official IRS instructions and consult a qualified professional for guidance.
Step 4: Identify Each Corrected Line Item and Calculate Net Change
For each partnership-related item being amended, enter in Part II (for partnerships) or Part III (for ELPs and REMICs): (a) the amount as reported initially on Schedule K or as previously adjusted, (b) the net change (increase or decrease), and (c) the correct amount. Calculate net change by subtracting (a) from (c). Show all computations in detail on separate pages attached to Part V.
Step 5: For BBA Partnerships, Calculate Imputed Underpayment Using Seven-Step Process
Group all adjustments into four categories: reallocation grouping, credit grouping, creditable expenditure grouping, and residual grouping. Within each grouping, determine if negative adjustments exist; if yes, apply subgrouping rules. Net all positive adjustments within each grouping separately (negative adjustments must be pushed out to partners and not included in the IU calculation). Sum all net positive adjustments from reallocation and residual groupings to calculate Total Netted Partnership Adjustments (TNPA). Multiply TNPA by the highest federal tax rate in effect for the reviewed year (37% for 2023). Add net positive adjustments from credit grouping and creditable expenditure grouping to the product—report the final imputed underpayment (IU) on Part IV, line 1.
Step 6: Elect Between Paying Imputed Underpayment or Pushing Out Adjustments
If BBA partnership filing AAR and adjustments result in IU: either (i) pay IU by reporting amount on Part IV, line 2, and attaching Form 8980 if requesting modifications under section 6225(c), or (ii) make push-out election under section 6227(b)(2) to have adjustments taken into account by reviewed-year partners, file Forms 8985 and 8986 with AAR, and declare the partnership not liable for IU. If adjustments do not result in an IU (i.e., zero or a negative amount), all adjustments must be pushed out; file Forms 8985 and 8986 with AAR. If adjustments include both positive (creating IU) and negative adjustments (not creating IU), the partnership must push out negative adjustments and either pay or push out positive adjustments.
Step 7: Prepare Amended Schedules K-1 for All Affected Partners
If any Schedule K information changes from the original return AND the partnership is a non-BBA partnership filing an amended return (not an AAR), prepare an amended Schedule K-1 for each partner for each affected tax year. BBA partnerships filing AARs do not furnish amended Schedules K-1 to partners; instead, they file Form 8986 showing each partner’s share of adjustments. For tax years beginning on or after January 1, 2021: if the partnership reports international tax items or specific partners request Schedule K-3 by one month before filing, prepare amended Schedules K-2 and K-3 containing relevant parts and sections. If ELP or REMIC is filing Form 1065-X for AAR, do NOT furnish amended Schedules K-1 to partners; instead, prepare Form 8986 for each affected partner showing the partner’s share of adjustments.
This checklist is for educational purposes only and does not constitute tax or legal advice. Always review official IRS instructions and consult a qualified professional for guidance.
Step 8: Attach All Supporting Documentation
Attach copies of all forms and schedules supporting corrected amounts (e.g., amended Form 8825 if rental income changed, amended Form 4562 if depreciation changed, amended Form 6765 if research credit claimed). If attachments include copies of forms from previously filed returns, write “Copy Only—Do Not Process” at the top of each prior-year form. Include the partnership name and Employer Identification Number (EIN) on every attachment. If increased research credit is being reported by BBA partnership, attach five items of information: (1) all business components to which section 41 credit relates; (2) for each component, all research activities performed; (3) names of individuals who performed each activity; (4) information each individual sought to discover; (5) total qualified employee wage expenses, qualified supply expenses, and qualified contract research expenses (Form 6765 may be used to satisfy this requirement).
Step 9: Complete Part V (Explanation of Changes) With Required Detail
For each amended line item in Part II or Part III, enter the line number and provide the reason for the change. Show the box number and code used to report the item on Schedule K-1. Show all computations in detail. Show how imputed underpayment was calculated, including grouping, subgrouping, netting steps, the highest tax rate applied, and how any modifications were applied. If space is insufficient, attach additional pages to Part V.
Step 10: Sign Form 1065-X, Date, and File to the Correct Service Center
A Tax Matters Partner (TMP) must sign for TEFRA partnerships. A Partnership Representative (PR) or designated individual (DI) must sign for BBA partnerships. The partner with authority (PWA) must sign for ELPs. Any partner or LLC member may sign for non-BBA partnerships, filing an amended return. Sign and date Form 1065-X under penalties of perjury, declaring the return is accurate, correct, and complete. Mail Form 1065-X with all required attachments (completed Part II or Part III; Part V explanations; amended Schedules K-1 for all affected years; amended Schedules K-2 and K-3 if applicable; Forms 8985 and 8986 if BBA push-out election made; Form 8980 if requesting IU modifications; five items of information if research credit increased; supporting documentation and computations) to the Internal Revenue Service Center where original Form 1065 was filed. Reference the IRS Where to File page for Form 1065 (2023) to confirm the correct service center based on the partnership’s principal place of business location and total assets at the end of the tax year.
This checklist is for educational purposes only and does not constitute tax or legal advice. Always review official IRS instructions and consult a qualified professional for guidance.
Form-Specific Limitations (For 2023)
Limitation 1: Non-BBA partnerships with any pass-through partner (i.e., another partnership, S corporation, trust, or other entity taxed as a pass-through) cannot elect out of the centralized audit regime. Only partnerships with 100 or fewer eligible partners (all individuals, C corporations, certain foreign entities taxable as C corporations, S corporations, or estates of deceased partners) may validly elect out of BBA and file Form 1065-X as an amended return.
Limitation 2: The BBA partnership cannot file increased research credit claims as a standard amended return. BBA partnerships claiming increased research credit must file AAR with Form 1065-X and attach five required information items; non-BBA partnerships may include five items with the amended return, and partners must consist of the items on their own amended returns claiming research credit.
Significant 2023 Line Redesigns (Part II)
Line 13a
- Prior Year Wording:
“Contributions” - Current Year Wording (2023):
Cash Contributions - Change Type:
Updated
Line 13b
- Prior Year Wording:
“Investment interest expense” - Current Year Wording (2023):
Noncash contributions - Change Type:
Added
Explanation: For tax years beginning on or after January 1, 2023, line 13a was redesignated from simply “Contributions” to specifically “Cash contributions.” A new line 13b was added for “Noncash contributions” to report non-cash capital contributions separately. Subsequent lines 13b through 13d in prior versions were renumbered to 13c through 13e accordingly. This redesign requires partnerships to separately track and report cash versus noncash contribution components, improving reporting clarity on amended returns.
Need Help With Your Tax Filing?
If you’re missing tax documents or want to ensure the numbers you enter match IRS records, we can help.
We offer:
- Full IRS transcript retrieval (Wage & Income + Account)
- Professional tax form review
- Preparation & filing support
- Tax relief options if you owe the IRS
Call now before filing: (888) 260-9441
Fast transcript pull available
This checklist is for educational purposes only and does not constitute tax or legal advice. Always review official IRS instructions and consult a qualified professional for guidance.
