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Mortgage Merlin
Self-employment · Q&A

Will a business loss on my tax return hurt my mortgage application?

Short answer: Usually, yes. A loss from a business you still own is subtracted from your other qualifying income — even a salaried W-2 borrower loses income to a money-losing side venture. If the business has closed, lenders can ignore the loss once you document the closure. One bad year inside a longer average gets case-by-case treatment.

The full answer

Underwriters read your whole return, not just the income lines you'd like them to see. An ongoing Schedule C or K-1 loss is treated as a recurring obligation and netted against your wages, because the presumption is you'll keep funding the shortfall. Deduction-driven "losses" — a profitable year turned negative by depreciation and one-time write-offs — can often be rebuilt through add-backs, which is where a well-organized return earns its keep.

A genuinely closed business is different: provide evidence it no longer operates (dissolution filing, final return, closed accounts) and most programs stop counting its history against you. Without that paper, expect the loss to keep following the file.

If losses are structural — early-stage growth spending, say — timing the application after the first profitable year, or qualifying on deposits through a bank statement program, usually beats arguing with a conventional underwriter about what the returns "really" show.

If this came up, these usually do too — the short answer to each, with a link to the full breakdown:

Sources

Educational information only — not financial advice, and not a quote, pre-approval, or offer of credit. Program rules and ranges are illustrative and vary by lender. Mortgage Merlin is a publisher, not a lender or broker.

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