Introduction: Understanding Schedule D (Form 1040)
Selling shares, property or crypto can create a taxable gain or a deductible loss, even if you reinvest every dollar of the proceeds. The IRS wants to see the result either way, and many filers struggle with how to report it correctly on Schedule D.
Schedule D is attached to Form 1040 and organises your capital gains and losses into one net figure. Form 8949 often sits behind it, listing the individual transactions that feed those totals.
This guide walks Australians and other non-U.S. investors with U.S. filing obligations through how Schedule D works, how Form 8949 feeds it, and where the net figure lands on your return.
A note on timing: returns filed in 2026 generally use the 2025 final forms. The 2026 versions are drafts and must not be filed. Always confirm line numbers and figures against the current IRS forms and instructions.
Key Takeaways
- Schedule D reports gains and losses from selling or exchanging capital assets such as securities, property and digital assets.
- Transactions are split into short-term and long-term, calculated as proceeds minus adjusted basis, then netted.
- Form 8949, Forms 1099-B, 1099-DA and 1099-S, and prior-year carryovers often support the return.
What Is Schedule D (Form 1040)?
Schedule D reconciles your capital gains and losses. The net result flows to Form 1040, line 7a, where it affects taxable income and total tax.
What counts as a capital asset
Most property you own for personal use or investment is a capital asset. Common examples:
- Stocks, bonds, mutual funds and ETFs
- Cryptocurrency and other digital assets (treated as property, not currency)
- Real estate held personally or for investment
- Collectibles such as art, antiques, coins, gems and metals
Inventory, certain receivables and depreciable business property are generally excluded. Wages, interest and regular business income are ordinary income and do not belong on Schedule D.
Short-term versus long-term
The holding period decides the category. Short-term means one year or less, and net short-term gains are taxed as ordinary income. Long-term means more than one year, counted from the day after acquisition through the day of disposition.
Inherited property sold is generally treated as long-term regardless of how long you actually held it.
Long-term gains can qualify for lower rates. For 2026, per IRS Rev. Proc. 2025-32, single-filer long-term capital gains brackets are:
- 0% on taxable income up to $49,450 (up from $48,350 in 2025)
- 15% on taxable income up to $545,500
These thresholds apply to taxable income, not to the gain alone. Collectibles can reach a 28% maximum, and unrecaptured section 1250 gain a 25% maximum. High earners may also owe the 3.8% net investment income tax above MAGI thresholds, such as $200,000 for single filers.
Who Must File Schedule D, and When It May Not Be Required
A practical decision process
You likely need Schedule D if any of these apply:
- You sold or exchanged capital assets.
- You received capital gain distributions that cannot be reported directly on Form 1040.
- You received a K-1 from a partnership, S corporation, trust or estate with capital items.
- You have a capital loss carryover from a prior year.
- Another IRS instruction points to Schedule D, such as certain Form 4797 gains.
When it may not be required
If you have no reportable sales or other Schedule D items, you generally skip it.
You may also skip Schedule D under the distributions-only exception when all of the following are true:
- Your only capital gains are Form 1099-DIV box 2a distributions
- Boxes 2b, 2c and 2d are empty
- You have no capital losses
Report that amount on Form 1040, line 7a, and check the box on line 7b. Confirm the current Form 1040 instructions for other exceptions.
Buying and holding does not create a Schedule D transaction. Trading inside an IRA generally isn't taxed until distribution. Taxable traditional IRA withdrawals are ordinary income, not capital gains.
Personal-use property and your home
Gains on personal-use property, such as a boat or jewellery, are generally reportable. Losses are not deductible.
For a main home, the section 121 exclusion covers up to $250,000 of gain, or $500,000 for qualifying joint filers. You generally need to have owned and lived in the home for 2 of the preceding 5 years.
If you receive Form 1099-S, the sale must be reported on Form 8949 even when no gain is taxable.
A caution for non-U.S. persons, NRIs and OCIs
Nonresident aliens follow a different route. Gains effectively connected with a U.S. trade or business go on Form 1040-NR, with Schedule D and Form 8949 as applicable.
Other U.S.-source gains use Schedule NEC and can face a 30% rate (or a lower treaty rate) if you were present 183 or more days in the tax year.
Foreign brokerage statements, currency conversion and withholding documents add complexity. FBAR (aggregate foreign accounts above $10,000 at any time) and Form 8938 are separate from the return, and both can apply.
Form 8949, 1099 Forms, and the Documents Needed
Form 8949 lists individual transactions and carries category totals to Schedule D. They work together but are not interchangeable.
Documents to gather
- Form 1099-B (broker and barter exchange proceeds)
- Form 1099-DA for digital assets
- Form 1099-S for real estate sales
- Brokerage statements, purchase confirmations and sale records
- Last year's Schedule D and your loss carryover calculation
- Any K-1 or property-sale forms
Information Form 8949 needs for each sale
- Asset description
- Acquisition date and sale date
- Proceeds
- Cost or other adjusted basis
- Adjustments and the resulting gain or loss
Covered and noncovered transactions
Form 8949 splits transactions by whether a 1099 was issued and whether basis was reported to the IRS. Part I is short-term and Part II is long-term.
| Situation | Short-term box | Long-term box |
|---|---|---|
| 1099-B, basis reported | A | D |
| 1099-B, basis not reported | B | E |
| No 1099-B | C | F |
| 1099-DA, basis reported | G | J |
| 1099-DA, basis not reported | H | K |
| No 1099-DA | I | L |
Eligible basis-reported transactions can sometimes be totalled directly on Schedule D lines 1a and 8a, skipping Form 8949. That requires no adjustments of any kind. The Form 8949 instructions list the exact conditions.
For digital assets, basis reporting by brokers is not mandatory for 2025. It becomes mandatory for covered assets acquired after 2025 and held in a custodial account.
Common basis problems
- Wash sales: A loss is disallowed if you buy substantially identical securities within 30 days before or after the sale (code W); the loss generally increases replacement basis.
- Wash sale example: Buy at $1,000, sell at $750, repurchase at $800 → $250 loss disallowed, new basis $1,050.
- Inherited property: basis is generally fair market value at death, not always higher than the decedent's basis.
- Gifted property: basis depends on whether the gift-date value was below the donor's basis.
- Other issues: stock splits, mergers, reinvested distributions, commissions, missing acquisition dates and multiple brokers.
How to Complete Schedule D Step by Step
The calculation
Start with proceeds. Subtract adjusted basis, including permitted commissions and adjustments. The result is a gain or a loss. Total similar transactions, then carry them to Schedule D.
Part I: short-term
Part I covers assets held one year or less.
- Lines 1b to 3 take Form 8949 totals by category.
- Line 4 covers other short-term gains, such as certain Form 6252 or 4684 items.
- Line 5 covers K-1 amounts.
- Line 6 is the prior-year short-term carryover.
- Line 7 is your net short-term result.
Part II: long-term
Part II mirrors Part I for assets held longer than a year.
- Lines 8b to 10 take Form 8949 totals.
- Line 11 covers Form 4797 Part I links and similar items.
- Line 12 is K-1 amounts.
- Line 13 is capital gain distributions.
- Line 14 is the long-term carryover.
- Line 15 is your net long-term result.
Part III: the summary
Line 16 combines lines 7 and 15. A gain in one category offsets a loss in the other.
Lines 17 to 20 test whether you need a tax worksheet, either the Schedule D Tax Worksheet or the Qualified Dividends and Capital Gain Tax Worksheet. Line 21 applies when the result is a net loss.
Use the Capital Loss Carryover Worksheet to calculate prior-year amounts for lines 6 and 14.
A hypothetical example
These figures are invented for illustration. They are not IRS thresholds or a real case.
- Short-term sale: bought shares in March 2025 for $5,000, sold in October 2025 for $5,600. Gain: $600.
- Long-term sale: bought in 2021 for $3,800 including commission, sold in 2025 for $3,000. Loss: $800.
Both sales appear on Form 8949 (boxes A and D, assuming basis was reported). Totals move to Schedule D lines 1b and 8b.
Net short-term is $600, net long-term is ($800), and line 16 is ($200). That net loss flows through line 21 to Form 1040, line 7a, as a deduction against other income.
Final review checklist
- Reconcile totals with each brokerage form.
- Confirm every sale is reported.
- Check holding periods and basis.
- Review adjustment codes such as W and L.
- Include carryovers.
- Compare Schedule D totals with Form 1040 and any required worksheet.
How Schedule D Affects Form 1040 and the Tax Treatment of Gains and Losses
Where the result goes
On the 2025 forms, a net gain on Schedule D line 16 goes to Form 1040 or 1040-SR line 7a. A net loss on line 21 goes to the same line. A zero result is entered as zero. The 2026 drafts keep this routing, but verify before filing.
How gains are taxed
Short-term gains are taxed at ordinary rates. Long-term gains use the 0%, 15%, and 20% brackets, with special rates for collectibles and unrecaptured section 1250 gain.
When lines 15 and 16 are gains and certain worksheet amounts are positive, use the Schedule D Tax Worksheet.
Net capital losses
You can deduct net capital losses against other income up to $3,000 per year ($1,500 if married filing separately). Any excess carries forward indefinitely.
Carryovers keep their character:
- Short-term amounts go to line 6 next year
- Long-term amounts go to line 14
Check the Schedule D instructions for the current year's limits.
Conclusion: A Practical Schedule D Filing Workflow
- Identify every reportable sale or exchange.
- Gather 1099 forms, K-1s and purchase records.
- Calculate adjusted basis, including wash-sale and inheritance rules.
- Complete Form 8949 where required.
- Transfer totals to Schedule D.
- Confirm the net amount on Form 1040.
Multiple brokerages, cross-border assets, digital asset activity, business-property sales or missing basis records complicate that workflow.
VJM Global provides Form 1040 and Form 1040-NR support through CPAs, Chartered Accountants and U.S.-compliant professionals, with pricing quoted by service scope. That help fits U.S. individual taxpayers, NRIs, OCIs and foreign investors who want personalised tax compliance support.
Outcomes depend on your facts and the current IRS rules.
Frequently Asked Questions
Who is required to file Schedule D (Form 1040) for 2026?
Generally anyone who sold or exchanged capital assets, has certain capital gain distributions or K-1 capital items, or has a loss carryover. Check the current IRS instructions for exceptions.
Do I need to file both Form 8949 and Schedule D (Form 1040) for 2026?
Usually yes. Form 8949 supplies transaction detail and Schedule D summarises it. Some basis-reported broker transactions with no adjustments can go directly on Schedule D.
How do I calculate capital gains for Schedule D (Form 1040)?
Subtract adjusted basis and permitted adjustments from proceeds. Total short-term and long-term results separately, then net them on Schedule D.
When is Schedule D (Form 1040) not required for 2026?
When you have no reportable sales or other Schedule D items. If your only gains are 1099-DIV box 2a distributions, you may report them directly on Form 1040. Check the current instructions for personal-use property and other exceptions.
What income is reported on Schedule D (Form 1040)?
Gains and losses from selling or exchanging capital assets, plus certain related items. Wages, interest and regular business income are reported elsewhere.
What is Form 8949 and how does it relate to Schedule D (Form 1040)?
Form 8949 records individual capital transactions. Schedule D aggregates the short-term and long-term totals and sends the net result to Form 1040.
