File Form 1065 (U.S. Return of Partnership Income) with our preparation checklist. For CPAs, partnership accountants, and multi-member LLC managers. Gather the trial balance, partner capital accounts, K-1 data, debt allocations, and ownership changes so the partnership return and partner Schedules K-1 are accurate. Confirm current IRS forms and Schedule K-2/K-3 needs. Not tax advice.

Opening capital and carryover items start from last year’s filing.
Match books delivered to the preparer; note cash vs accrual.
Contributions, allocations, distributions, and other adjustments.
Include mid-year changes with effective dates.
Report on Form 1065 and each partner’s K-1 when applicable.
Affects partner basis and at-risk amounts.
Include Form 4562 support and §179/bonus elections.
Foreign partners, foreign source income, or other international items.