Figures: tax year 2026
A transfer divides ownership rights during the partnership's tax year. To calculate the allocation of partnership income or loss, the preparer identifies the transferred percentage, effective cutoff, allocation method and character of each item.
The interim closing method assigns actual tax results to periods separated by ownership changes. Treasury Regulations make this the general method unless a valid agreement selects an alternative.
- The proration method spreads nonextraordinary items ratably over the relevant period, then applies each owner's percentage during the applicable days.
- A valid selection requires a dated written agreement maintained with the partnership records by the return's due date, including extensions.
- The agreement may reflect all partners' consent or a selection by someone empowered to make it under the governing arrangements.
- Each income, gain, deduction and loss category retains its character. An ordinary operating loss and a capital gain remain separate allocations.
DECISION: Determine the permitted method before calculating amounts. Reliable interim results support closing the books; a valid proration selection substitutes ratable daily amounts for those actual results.
Common mistakes
- Automatic daily proration. In Example 1, applies the wrong method; interim closing assigns Mara $29,200.
- Half-year shortcut. In Example 2, incorrectly treats 181 days as half of 365.
- Cash alone as outside basis. Omitting Owen's $20,000 liability share gives $100,000 instead of .
Bottom line
- Interim closing uses actual period results unless a valid agreement permits proration.
- Extraordinary items follow ownership when they occur, independently of ordinary-item allocation conventions.
- Partial sales change allocation percentages, while contributions themselves are not extraordinary income.
- Purchased outside basis includes allocated liabilities; an interest sale leaves common asset basis unchanged.
Exam shortcut
Mark the transferred percentage and effective cutoff before multiplying income. For a partial sale, calculate the retained percentage separately. Remove extraordinary items before using daily proration. Check actual ownership at the event's time if the gain and transfer occur on the same date. Write three separate amounts: purchase-cost outside basis, common inside-basis share and the special adjustment. Test election status and both mandatory triggers before applying the difference.
The full lesson (about 5,304 words, 35 min read) adds 7 worked examples, all 6 common mistakes, a self-check, free in the app.
Learning objectives
- II.C4
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