Capital Loss Carryover: Definition, Rules, and Example

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A capital loss carryover is the portion of a net capital loss that you can’t deduct in the year it occurs and that moves forward to later tax years. Under U.S. federal rules, capital losses first offset capital gains. If losses are larger than gains, you can deduct up to $3,000 of the excess against ordinary income each year ($1,500 if married filing separately). Anything left over carries forward with no expiration date until it is used up or the taxpayer dies.

How a Capital Loss Carryover Works

A capital gain or loss is the amount realized minus your adjusted basis, which is usually what you paid plus certain acquisition costs and improvements. Assets held one year or less produce short-term results, and those gains are taxed at ordinary income rates. Assets held longer are long-term, and those gains generally qualify for 0%, 15% or 20% rates, with special rates for collectibles and some depreciated real estate. Those rates, covered in capital gains tax, are why the netting order matters.

The Netting Order

Each year, the tax return sorts transactions in this sequence:

1. Short-term losses are netted against short-term gains.
2. Long-term losses are netted against long-term gains.
3. If one category shows a net gain and the other a net loss, the two are netted against each other.
4. If the combined result is a net loss, up to $3,000 ($1,500 married filing separately) is deducted from ordinary income.
5. Any remaining loss becomes the carryover to next year.

A long-term loss is applied against long-term gains before it can reach short-term gains. This matters because a short-term gain would otherwise be taxed at the higher ordinary rate.

Short-Term and Long-Term Character

The carryover is tracked in two buckets. A short-term carryover enters next year’s return as a short-term loss, and a long-term carryover enters as a long-term loss. When the $3,000 deduction against ordinary income is taken, net short-term losses are used first and long-term losses after that. Because of this, the deduction can change which bucket you carry forward.

The carryover also counts toward next year’s net capital gain or loss. It is combined with that year’s transactions before the $3,000 limit applies again. It does not get its own separate $3,000 allowance on top of a new loss.

Example of a Capital Loss Carryover

Hypothetical example, single filer, all long-term transactions, taxable income well above zero in every year:

• Year 1: You sell shares with a basis of $26,000 for $6,000, a $20,000 loss. You also have $2,000 of long-term gains. The loss wipes out the $2,000 gain, leaving an $18,000 net loss. You deduct $3,000 against wages and other ordinary income. Carryover: $15,000.
• Year 2: You realize $8,000 of long-term gains. The $15,000 carryover erases them, so none of that $8,000 is taxed. Of the remaining $7,000, you deduct $3,000. Carryover: $4,000.
• Year 3: No sales. You deduct $3,000. Carryover: $1,000.
• Year 4: No sales. You deduct the final $1,000. The carryover is exhausted.

The original $20,000 loss sheltered $10,000 of capital gains and $10,000 of ordinary income over four years. The ordinary-income portion is capped at $3,000 a year, but carried losses can absorb gains of any size whenever they appear.

Calculating and Reporting Your Carryover

Individual sales are reported on Form 8949 and summarized on Schedule D of Form 1040. The IRS provides a Capital Loss Carryover Worksheet in the Schedule D instructions and in Publication 550. It splits the amount into short-term and long-term portions. Those figures go on the next year’s Schedule D: the short-term carryover on line 6 and the long-term carryover on line 14.

Tax software normally carries the amount forward automatically. That transfer can fail when you switch software or preparers, or when a prior return was prepared elsewhere. In that case, rerun the worksheet using the prior year’s Schedule D and taxable income figures and enter the amounts by hand.

The worksheet also handles low-income years. If your taxable income would be below zero even before the capital loss deduction, part of the $3,000 deduction produces no tax benefit, and the worksheet adds that part back to the carryover. The amount treated as used is the smaller of the deduction claimed or your taxable income with the deduction added back.

Limitations of Capital Loss Carryover

The Wash Sale Rule

A wash sale happens when you sell stock or securities at a loss and buy substantially identical stock or securities within 30 days before or after the sale. The rule also applies to purchases through a contract or option and to purchases by your spouse. The loss is disallowed for that year. It is not lost permanently: it is added to the basis of the replacement shares, and the holding period of the old shares carries over to them. The loss is recognized when the replacement position is sold in a transaction that is not itself a wash sale.

A disallowed wash-sale loss cannot feed the current year’s net loss or the carryover.

Losses That Never Qualify

• Personal-use property. A loss on selling your home, car or other personal items is not deductible, even though a gain on the same property can be taxable.
• Related-party sales. Losses on sales or exchanges between certain family members, or between an individual and a corporation in which that person owns more than 50% of the stock, are not deductible.

Married Filing Separately and Death

The $1,500 limit for married filing separately is half the joint limit. If spouses who had a carryover on a joint return later file separately, each spouse can claim only the part of the carryover that came from his or her own losses.

A carryover belongs to the taxpayer who incurred the loss. Unused amounts can be deducted on the final individual return of a person who dies, subject to the usual limit. Any balance after that expires; it does not pass to the estate or heirs.

Capital Loss Carryover vs. Related Concepts

Net operating loss (NOL). An NOL comes from business deductions exceeding business income and follows its own rules. For losses arising after 2017, an NOL generally carries forward indefinitely but can offset no more than 80% of taxable income in a given year. A capital loss carryover is capped at $3,000 against ordinary income and has no percentage-of-income limit against capital gains.

Corporate capital losses. A C corporation can deduct capital losses only against capital gains. It gets no $3,000 allowance and generally carries net capital losses back three years and forward five. The indefinite carryforward described here applies to individual taxpayers.

Other countries. Rules outside the U.S. federal system differ. In Canada, for example, net capital losses offset only taxable capital gains, and the CRA permits a three-year carryback and an indefinite carryforward. State tax treatment can also differ.

FAQs

The Bottom Line

Individual investors whose losses exceed their gains can keep using the excess for years, offsetting gains of any size and up to $3,000 of ordinary income annually. Track the short-term and long-term amounts on the Capital Loss Carryover Worksheet, and recheck the figures when changing software or preparers. Unused amounts end at death, and wash-sale or personal-use losses never enter the carryover.