The Form 4797 builder prepares supported 2025 business-property sale, gain/loss and recapture entries from reviewed asset records. Establish the property classification, holding period, unadjusted basis, allowed or allowable depreciation and applicable prior Section 1231 losses. Enter a Part III disposition once; its calculated amounts transfer to the other applicable parts.
Reviewed October 29, 2026 · The final 2025 two-page original is enabled; 2026 is unavailable. The worked example assumes an individual’s ordinary equipment sale, no casualty or special disposition rules, and a reviewed five-year loss history.
The Form 4797 property-disposition builder helps separate the amount of a gain from its tax character. Sale proceeds, adjusted basis, ordinary recapture and remaining Section 1231 gain are different numbers. A profitable sale is not automatically all long-term capital gain.
Which parts of Form 4797 apply?
Part I covers qualifying Section 1231 transactions, generally involving relevant business property held more than one year. Part II handles applicable ordinary transactions. Part III calculates gain dispositions subject to specified recapture rules. Part IV addresses certain business-use reductions and can apply without a sale.
These are classification decisions, not four alternative places to try the same transaction. The Form 4797 instructions govern special dispositions and reporting routes. Inventory, capital assets, installment transactions, involuntary conversions and entity-level reporting may need different or additional forms.
The builder asks for the return type: individual, partnership, S corporation, C corporation or another nonindividual return. That selection affects routing. A partnership’s Section 1231 information is not processed exactly like an individual owner’s five-year lookback.
Use the actual acquisition and disposition dates and identify any verified special holding-period rule. A “various” or inherited acquisition entry has a factual meaning; it is not a way to avoid researching the asset history.
The reviewed tool supports the final 2025 original. A later preparation date does not change the sale’s tax year, and the disabled 2026 option is not a final later-year form.
Why does the input ask for basis before depreciation?
The supported sale rows and Part III calculation separately account for depreciation. The relevant cost/basis-and-selling-expense input must therefore not already have the same depreciation subtracted. Otherwise the tool would reduce basis twice and overstate the gain.
Gather original cost or other basis, improvements, sale expenses, adjustments, allowed or allowable depreciation and any relevant depletion records. The phrase “allowed or allowable” means the review cannot simply stop at the deductions a taxpayer remembers claiming.
For a simplified ordinary sale, adjusted basis reflects the relevant cost and sale expense less the applicable depreciation. More complex property needs the additional basis adjustments prescribed for that transaction. A closing statement’s net cash payment is not automatically the correct gain input.
The IRS publication on sales and other dispositions discusses basis, amount realized, gain character and recapture. Our Form 4562 guide covers maintaining the depreciation and election records that can later affect a sale.

How does a fictional equipment sale produce $33,000 of gain?
Assume an individual sole proprietor purchased qualifying Section 1245 business equipment for $50,000 on October 1, 2022 and sold it for $65,000 on November 15, 2025. Sale expenses are $2,000. Total allowed or allowable depreciation is $20,000, and no other basis adjustment applies.
Assume the property has the required business classification and holding period, the transaction is a normal fully recognized sale rather than a casualty, installment or exchange, and no special recapture provision changes the calculation.
| Component | Amount | Calculation or source |
|---|---|---|
| Gross sale proceeds | $65,000 | Actual assumed contract amount. |
| Original equipment cost | $50,000 | No other basis additions assumed. |
| Selling expenses | $2,000 | Included once with the basis/expense input. |
| Cost plus selling expenses | $52,000 | $50,000 + $2,000. |
| Depreciation | $20,000 | Reviewed allowed or allowable amount. |
| Adjusted basis for this calculation | $32,000 | $52,000 − $20,000. |
| Total recognized gain | $33,000 | $65,000 − $32,000. |
| Ordinary Section 1245 recapture | $20,000 | Smaller of $33,000 gain and $20,000 applicable depreciation. |
| Remaining Section 1231 gain | $13,000 | $33,000 − $20,000. |
Enter the disposition in Part III, not again in a separate Part I or II sale row. The ordinary recapture and eligible noncasualty residual flow to their proper totals. Re-entering the property would duplicate the transaction even if each row separately looked reasonable.
Notice the input distinction: $52,000 is the cost-plus-selling-expense amount before subtracting depreciation. Entering the already adjusted $32,000 in that field and also entering $20,000 depreciation would incorrectly reduce the basis again.
The result is $33,000 of gain, not $65,000 of gain. It is also not all Section 1231 gain: $20,000 is ordinary recapture before the remaining $13,000 reaches the subsequent character review.
What happens if $5,000 of prior Section 1231 losses remains?
Continue the same individual example. Assume there are no other current Section 1231 transactions and the records establish $5,000 of nonrecaptured net Section 1231 losses from the applicable five preceding tax years. These losses have not already been used in an earlier lookback calculation.
The $13,000 residual is the current net Section 1231 gain under those limited facts. The assumed $5,000 prior-loss amount causes $5,000 of it to be treated as ordinary income. The remaining $8,000 follows the applicable long-term-capital-gain route to Schedule D.
The full gain therefore reconciles as $20,000 Section 1245 recapture + $5,000 lookback ordinary income + $8,000 remaining long-term gain = $33,000. Total ordinary gain from these stated components is $25,000.
This is a classification illustration, not an income-tax calculation. Other current transactions, an inaccurate remaining-loss balance or a different return type would change the analysis. Keep each prior loss year and the amounts already recaptured in the supporting record.
The 2025 original Form 4797 separates the prior-loss entry and downstream totals. Partnerships and S corporations follow their Schedule K reporting directions rather than performing the same individual lookback on the entity return.

What changes for other property or special dispositions?
Section 1250 real property uses different recapture inputs, including applicable additional depreciation and percentages. Corporate Section 291 adjustments, where required, also need their actual worksheet amount. Do not copy the equipment example’s Section 1245 result into a real-property row.
Unrecaptured Section 1250 capital gain is a separate issue from ordinary Section 1250 recapture. A straight-line-depreciation selection does not finish every real-property capital-gain calculation. Prepare the required related worksheets and schedules.
The tool also supports specified farmland, resource-property and Section 1255 inputs. Their qualifications and percentages come from the applicable records. Partnership treatment can differ, including the tool’s restriction on the farmland recapture subsection.
Casualty/theft residual gain is identified separately for its Form 4684 treatment. Transfers from Forms 6252 and 8824 likewise come from separately prepared source forms. Do not use a generic sale row to replace a special disposition procedure.
Can Part IV apply when no property was sold?
Yes. Certain prior-year property can require recapture when qualified business use falls to 50% or less. A sale date is not required for that Part IV situation. Establish the prior deduction and recomputed depreciation from the property’s actual history.
As a distinct arithmetic illustration only, $12,000 of applicable prior deductions less $3,000 of recomputed depreciation would produce $9,000 of recapture. Whether those amounts and that recapture rule apply must be established separately; this is not an additional amount in the equipment-sale example.
Keep nonlisted Section 179 recapture and listed-property recapture in their proper columns. Do not claim the same recapture in both. Multiple-property cases need separate computations, and the resulting amount goes to the appropriate activity return under the instructions rather than automatically being added to the ordinary-sale total.
How should the completed two-page PDF be checked?
Compare both original pages with the contract, sale expenses, asset register, depreciation history, prior Section 1231 records and any separate source forms. Check the actual return type, identifying number, dates, property classification and required statements.
The informational 1099-proceeds and partial-disposition totals disclose amounts already included in property rows. They are not additional proceeds or gains to add a second time. Review any overflow beyond the supported original property slots and prepare the necessary extra forms.
Verify the destination on the separately prepared tax return. Our Schedule 1 guide discusses relevant individual additional-income entries, while our partnership guide covers a different entity-level route. Neither substitutes for the property-specific character calculation.
Form 4797 has no separate taxpayer signature line. Complete the main return and required supporting forms before submission. The preview, download and document-service checkout do not file the return or pay tax. Blank official forms remain available directly from the IRS.
Form 4797 questions
Is all business-property sale gain long-term capital gain?
No. Depreciation recapture, prior Section 1231 losses and the transaction’s classification can produce ordinary income.
Should I repeat a Part III property in a Part I sale row?
No. Use the automatic supported transfer rather than recording the same disposition twice.
Does the basis field take a number already reduced by the same depreciation?
Not in the supported calculation described here. Review the input’s unadjusted basis/expense meaning and separate depreciation entry.
Must I sell the asset before Part IV can apply?
No. A qualifying business-use reduction can trigger the applicable recapture rule without a sale.
Does the $25,000 ordinary component in the example equal tax owed?
No. It is an income-character amount; the actual tax depends on the completed return.
The Check Stubs Online Editorial Team reviewed the final 2025 tool and IRS disposition guidance. The original case checks $65,000 − ($50,000 + $2,000 − $20,000) = $33,000, then reconciles $20,000 recapture + $5,000 assumed lookback + $8,000 remaining gain.