Will a December cash contribution let me deduct my S corp loss?
Year-End Cash Contributions and S-Corp Losses. Review the facts, records and next steps for your business.
By AE Tax Advisors Team · Updated October 28, 2026
Additional funding may affect basis, but basis is only one gate. Review when the contribution occurred, who made it and the at-risk, passive and other limitations before forecasting a deduction.
A business-owner scenario
An owner expects a large pass-through loss and plans to contribute cash before year-end. The business may distribute the money back shortly afterward. The advisor needs the complete funding sequence and the owner's economic position, not a screenshot of one transfer.
Illustrative scenario, not a client result.
Work through the transaction
- Project the loss and existing limitation balances.
- Trace the contribution and any planned return of funds.
- Recompute each applicable limitation in order.
The mistake that changes the result
A deposit followed by a rapid withdrawal should not be analyzed as though the withdrawal does not exist.
Records that resolve the question
- Year-to-date books.
- Bank transfer trail.
- Ownership records.
- Carryforward and basis schedules.
The decision to document
Ask for a before-and-after limitation model and a separate cash forecast. The decision should account for operating needs and the actual funding arrangement rather than assuming any deposit creates a usable loss.
Which fact changes the answer?
Funding from your own available cash differs from a transaction dependent on related-party financing or immediate repayment. Tell the advisor about every connected step. A basis model built from only the favorable deposit can miss the actual economic position.
Explore shareholder loans and funding advisory · Discuss your situation with AE Tax Advisors
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Sources and scope
General educational information prepared with AI assistance. No individual professional review is represented. Apply the relevant tax-year rules to the actual records. Editorial policy · AI disclosure.