Form 4797 is a U.S. federal tax form. It matters to Australian businesses and owners only when they have a U.S. filing obligation or U.S.-connected business property, such as a U.S. branch, a U.S. rental building, or a U.S. subsidiary's assets. An ordinary Australian asset sale is not reported on it.
This guide covers who uses the form, how adjusted basis and recapture shape the result, what Parts I to IV report, and where the amounts flow next.
Key Takeaways
- Form 4797 reports sales, exchanges, involuntary conversions, and recapture on property used in a U.S. trade or business.
- Asset type, holding period, adjusted basis, and depreciation history decide the treatment.
- One sale can produce both ordinary recapture income and Section 1231 or capital-gain treatment.
- Keep U.S. Form 4797 duties separate from Australian reporting, and check the current IRS form for your tax year.
What Is Form 4797 and Who May Need It?
What Form 4797 is used for
The IRS describes Form 4797 as the form for business-property disposals, involuntary conversions, and specified recapture. Its scope covers business real estate, depreciable or amortisable tangible property, and certain mineral and Section 126 property.
It does not apply automatically. The property's use, classification, and holding period decide the reporting route.
Who may need to file it
Individuals, sole proprietors, partnerships, S corporations, corporations, and trusts can all encounter it. Pass-through owners may receive the figures on a Schedule K-1 and report the disposal themselves.
For Australian owners, the question is whether a U.S. connection exists:
- A nonresident individual with a U.S. business reports business-property amounts through Form 1040-NR.
- A foreign corporation files Form 1120-F, which receives the Form 4797 Part II total.
- Gains on U.S. real property can be treated as effectively connected income even without a U.S. business.
The Australia-U.S. treaty may affect these positions, and treaty-based positions are generally disclosed on Form 8833. Get advice before relying on it.
What property falls within scope
- Equipment, machinery, and vehicles
- Buildings, rental property, and business land
- Certain amortisable assets
These sit outside the usual business-property route:
- Inventory held for sale to customers
- Personal-use property
- Investment shares
- Ownership interests in a company
Selling a partnership interest is different from selling the assets inside the partnership.
When another form is also required
Form 4797 often works alongside other forms:
- Form 6252 for installment sales
- Form 8824 for like-kind exchanges
- Form 8594 for business asset acquisitions where goodwill or going-concern value attaches
- Form 4684 for casualty or theft losses
How to Determine What to Report
Gather the transaction and asset records
Pull together these records before you calculate gain or loss:
- Asset description and business-use history
- Acquisition, placed-in-service, and sale dates
- Purchase documents, sale price, and selling expenses
- Improvements, depreciation, and Section 179 deductions
IRS Publication 583 lists the core asset records to keep.
Calculate amount realized and adjusted basis
Amount realized is money plus the fair market value of property or services received, including liabilities the buyer assumes. Selling expenses reduce it.
Adjusted basis starts with cost, then rises with improvements and falls with depreciation. Use tax depreciation, not book depreciation. Depreciation that was allowed or allowable reduces basis even if you never claimed it.
Classify the asset
Classification drives the recapture rules:
| Category | Typical property | Recapture rule |
|---|---|---|
| Section 1245 | Equipment, vehicles | Ordinary income up to prior depreciation |
| Section 1250 | Buildings | Ordinary recapture only on depreciation above straight-line |
| Land | Nondepreciable | No depreciation recapture |
| Sections 1252, 1254, 1255 | Farmland, mineral, Section 126 property | Specialized gain-limited recapture |
Calculate gain, loss, and recapture
- Determine the amount realized.
- Subtract adjusted basis to find gain or loss.
- Compare any gain with depreciation or amortization taken.
- Separate ordinary recapture from the remaining gain.
For Section 1245 property, ordinary gain is generally the lower of the gain or the depreciation taken. For buildings, individuals may also face unrecaptured Section 1250 gain, taxed at a maximum 25% rate. That is not a flat rate on total gain.
Handle bundled and special transactions
A sale of land, a building, equipment, and goodwill together needs an allocation of price and basis across each asset. Written allocations generally bind both parties, and Form 8594 reports them.
Other situations need extra review:
- Mixed personal and business use requires splitting price, expenses, and basis.
- Related-party sales of depreciable property can make recognized gain ordinary under Section 1239.
- Installment sales recognise recapture in the sale year, even if no payment arrives that year.
Understanding Form 4797 Parts I to IV
The 2025 form is the reference here. Check the release for your tax year before relying on any line reference.
Part I: Section 1231 gains and losses
Part I covers most business property held more than one year. Net Section 1231 gain generally receives long-term capital treatment and goes to Schedule D. Net loss moves to Part II as ordinary loss.
Net gain becomes ordinary to the extent of nonrecaptured net Section 1231 losses from the five most recent preceding tax years. That is the lookback.
Part II: Ordinary gains and losses
Part II reports ordinary results, including property held one year or less and recapture carried from Part III. Individuals' amounts flow to Schedule 1 of Form 1040. Other filers follow their own return's destination, and Form 1120-F receives the total directly.
Part III: Depreciation recapture
Part III covers property under Sections 1245, 1250, 1252, 1254, and 1255. It does the recapture math:
- Ordinary recapture goes to Part II.
- Remaining non-casualty gain goes to Part I.
- Remaining casualty or theft gain goes to Form 4684.
Take a machine bought for $50,000 and depreciated down to $10,000. Sold for $35,000, the gain is $25,000. That amount sits below the $40,000 of depreciation taken, so all of it is ordinary Section 1245 income.
Sold for $55,000, the gain is $45,000: the first $40,000 is ordinary and the extra $5,000 moves to Part I. (This is an illustration, not tax advice.)
Part IV: Section 179 and listed-property recapture
Part IV applies when business use drops to 50% or less during the recovery period. It covers prior Section 179 deductions and listed property after predominant business use.
Listed property includes:
- Passenger automobiles
- Business aircraft
- Other transportation property (unless excepted)
- Entertainment or recreation equipment
Qualified nonpersonal-use vehicles are excepted. IRS Publication 946 states that deductions require adequate evidence of business use, so keep mileage and usage logs.
How the parts work together
- Identify the asset and its classification.
- Start in the part the instructions direct for that asset.
- Run recapture in Part III or Part IV.
- Send ordinary amounts to Part II.
- Carry remaining Section 1231 gain to Part I, then to Schedule D.
Form 4797 vs. Schedule D, Form 8949, and Related Forms
The asset's use and tax classification decide the form, not the size of the sale.
- Form 4797: gains on depreciable trade or business property.
- Form 8949: capital-asset sales not reported elsewhere, with transaction-level detail.
- Schedule D: overall capital gain or loss, including eligible Section 1231 gain from Form 4797.
Do not report the same transaction on both Form 4797 and Form 8949. That double-counts the gain.
A mixed-use asset, such as a vehicle used partly for personal travel, needs allocation. The business share goes through Form 4797, and the personal share may go through Form 8949 and Schedule D, though personal-use losses are generally not deductible.
Pass-through owners add another layer. A Schedule K-1 from a partnership reports each partner's share of income, deductions, and credits. When an entity passes through Section 179 deductions, the partner or shareholder reports the disposal on their own Form 4797.
Before You File: Records, Common Mistakes, and Professional Review
Records to assemble
- Purchase and closing documents
- Asset ledgers and depreciation schedules
- Section 179 and bonus-depreciation records
- Improvement invoices
- Sale agreements, settlement statements, and selling expense receipts
- Allocation schedules
- Business-use logs
- Prior returns, including any prior Section 1231 losses
The IRS retention guidance says property records generally need to survive through the limitation period for the year of disposal. That is usually three years, and six years for substantial omitted income.
Common mistakes to avoid
- Reporting a business sale only on Schedule D
- Using book basis instead of tax basis
- Ignoring depreciation that was allowed or allowable
- Skipping allocation on a bundled sale
- Missing listed-property recapture
- Using outdated line numbers
- Reporting the same gain twice
When professional review is appropriate
Get a professional review when any of these apply:
- Cross-border ownership or pass-through entities
- Several asset classes or incomplete depreciation records
- Mixed use or listed-property recapture risk
- Installment sales, related-party transfers, or Section 1031 exchanges
- A business acquisition with bundled assets
VJM Global's international tax practitioners support Australian and other cross-border businesses with U.S. filing obligations. The team can reconcile accounting records, depreciation schedules, Form 4797, and related schedules. This is U.S. filing support, not Australian tax advice.
Conclusion: Report Business Property Sales Through the Correct Forms
Form 4797 does more than record a sale price. How you complete it determines whether the result is ordinary income, depreciation recapture, Section 1231 gain or loss, or another treatment.
Read the current IRS instructions for your tax year. Seek qualified advice if you are an Australian business with US filing obligations, or if you have multiple assets, cross-border ownership, or incomplete records.
Frequently Asked Questions
What income is reported on Form 4797?
It reports ordinary gains and losses, depreciation recapture, Section 1231 gains and losses, and other qualifying business-property results. The mix depends on the asset and the transaction.
How does Form 4797 differ from Schedule D and Form 8949?
Form 4797 handles business-property dispositions. Form 8949 lists capital-asset transactions, and Schedule D totals capital gains and losses. Mixed-use sales may involve more than one form.
Do capital gains go on Form 4797?
A qualifying business-property sale starts there. Any net Section 1231 gain, after recapture and the lookback, then flows to Schedule D under the current instructions.
What is Section 1245 recapture and how is it reported?
It treats gain linked to prior depreciation or amortization as ordinary income. Part III calculates it, and the ordinary amount moves to Part II.
What is the difference between Part I and Part III?
Part I reports Section 1231 results on business property held over a year. Part III calculates recapture on specified property, and remaining gain then moves to Part I.
What is the definition of listed property?
Listed property includes passenger automobiles, business aircraft, other transportation property unless excepted, and entertainment or recreation equipment. Business-use and substantiation rules apply, so check Section 280F and the current Form 4797 instructions.
