Form 4797: Sales of Business Property

Who Files Form 4797

Businesses and individuals who sell or dispose of property used in a trade or business (Section 1231 property), who must report depreciation recapture under Sections 1245 and 1250, or who recognize ordinary gain or loss from certain business transactions. It is also the form on which a securities trader with a valid Section 475(f) mark-to-market election reports trading gains and losses, which are ordinary rather than capital.

What Form 4797 Reports

Form 4797 separates ordinary gains and losses from Section 1231 transactions that can receive favorable long-term capital gain treatment when net gains result, and it computes depreciation recapture that is taxed as ordinary income. For a mark-to-market trader, all realized trading results plus the year-end deemed sale of open positions flow to Form 4797 as ordinary income or loss, bypassing the $3,000 capital-loss limitation and the wash-sale rules that would otherwise apply on Schedule D and Form 8949. Net Section 1231 gains move to Schedule D, while net Section 1231 losses are fully deductible as ordinary losses.

Key Deadlines

• Filed with the income tax return for the year of sale or disposition (April 15 for calendar-year individuals, with extensions available)
• Mark-to-market traders file it for every year the Section 475(f) election is in effect, including the year-end deemed sale of open positions

Common Mistakes

• Reporting business property sales on Schedule D instead of Form 4797, or vice versa
• Overlooking depreciation recapture, which is taxed as ordinary income up to the depreciation taken
• A Section 475(f) trader continuing to report on Schedule D and Form 8949 instead of Form 4797
• Failing to mark open positions to year-end fair market value under a valid mark-to-market election
• Misapplying the Section 1231 netting rules that can recharacterize prior ordinary losses

Best Practices

• Map each disposition to the correct form before filing: Form 4797 for business property and mark-to-market trading, Schedule D and Form 8949 for investments.
• Track depreciation taken on every business asset so recapture is computed correctly at sale.
• For traders, reconcile broker 1099-B totals to the ordinary Form 4797 figures and document the year-end mark.
• Watch the five-year Section 1231 lookback that can convert current capital gain into ordinary income.
• Coordinate Form 4797 with Form 3115 in the first mark-to-market year so the Section 481(a) adjustment and ordinary reporting line up.

Source: Official Form 4797 information at IRS.gov