Learn About Capital Loss Deductions and Ordinary Income

Understanding Capital Losses and How They Work

A capital loss occurs when you sell an investment or asset for less money than you paid for it. For example, if you bought stock for $5,000 and sold it later for $3,500, you would have a capital loss of $1,500. Capital losses can happen with many types of investments, including stocks, bonds, mutual funds, and real estate. They can also occur with personal property in some situations, though the rules differ depending on what you own.

The Internal Revenue Service (IRS) recognizes capital losses as real financial events that may affect your taxes. When you experience a capital loss, you have options for how to handle it on your tax return. Understanding these options requires knowing the difference between short-term and long-term capital losses, as well as how these losses interact with capital gains and ordinary income.

Capital losses are tied to the concept of "basis," which is what you originally paid for an asset plus any additional costs like commissions or fees. When you sell an investment, the difference between your basis and the sale price determines whether you have a gain or loss. Keeping detailed records of your basis is essential because you will need this information to calculate your capital loss accurately when filing taxes.

It is important to note that not all losses qualify as capital losses. Losses on personal use property—like your primary home or car—generally cannot be deducted on your tax return. However, losses on investment property or business property may be deductible. Additionally, losses from gambling, theft, or casualty events follow different rules than investment losses.

Practical Takeaway: Track the original purchase price, date of purchase, sale price, and sale date for all investments you own. This documentation will be crucial if you need to report a capital loss on your taxes.

Short-Term vs. Long-Term Capital Losses

The holding period for an asset determines whether a capital loss is classified as short-term or long-term. If you sell an asset that you have owned for one year or less, the loss is considered short-term. If you sell an asset that you have owned for more than one year, the loss is considered long-term. This distinction matters because the tax treatment differs between these two categories.

Short-term capital losses result from selling investments you have held for a year or less. These losses offset short-term capital gains dollar-for-dollar. Short-term capital gains are taxed as ordinary income at your regular tax rate, which can be anywhere from 10% to 37% depending on your tax bracket in 2024. Because short-term losses reduce short-term gains, using a short-term capital loss to eliminate a short-term gain can save you money at your ordinary income tax rate.

Long-term capital losses occur when you sell investments held for more than one year. These losses primarily offset long-term capital gains. Long-term capital gains receive preferential tax treatment, with rates of 0%, 15%, or 20% depending on your income level—much lower than ordinary income tax rates. If you use a long-term capital loss to eliminate a long-term capital gain, you reduce your tax liability at the lower long-term rate.

However, the IRS has ordering rules for how losses and gains combine. Short-term losses first offset short-term gains. Long-term losses first offset long-term gains. Only after losses within each category are matched do they begin to offset gains in the other category. Additionally, any remaining losses may offset ordinary income up to $3,000 per year. Understanding this ordering system helps explain how your total tax liability changes when you have capital losses.

Practical Takeaway: Record whether each investment you sold was held for one year or less (short-term) or more than one year (long-term). This determines which capital gains your losses will offset first.

Capital Loss Deductions Against Ordinary Income

One of the most important provisions in the tax code allows taxpayers to deduct capital losses against ordinary income. Ordinary income includes wages, salary, interest, dividends, and self-employment income. The IRS permits you to deduct up to $3,000 of net capital losses against ordinary income in a single tax year. This $3,000 limit applies whether you are filing as single, married filing jointly, married filing separately, or head of household—though married filing separately taxpayers are limited to $1,500.

To reach the $3,000 deduction, you must first calculate your net capital loss for the year. This means adding up all your capital gains and losses and determining your overall position. For example, if you had $5,000 in long-term capital gains and $6,500 in long-term capital losses, your net capital loss would be $1,500. You could deduct the full $1,500 against ordinary income, since it is below the $3,000 annual limit.

If your net capital loss exceeds $3,000 in a single year, you cannot deduct the excess in that year. However, the unused capital loss does not disappear. The IRS allows you to carry forward unused capital losses indefinitely to future tax years. This carryforward applies until your capital losses are fully used. For example, if you had a $10,000 net capital loss in 2024, you could deduct $3,000 against 2024 ordinary income, $3,000 against 2025 ordinary income, $3,000 against 2026 ordinary income, and $1,000 against 2027 ordinary income.

The ability to deduct capital losses against ordinary income provides a meaningful tax benefit. If you are in the 24% tax bracket and you deduct $3,000 in capital losses, you reduce your tax liability by $720. Over several years, significant capital losses can substantially reduce your tax bill. This is why documenting capital losses carefully and considering how to use them strategically matters financially.

Practical Takeaway: If you have more than $3,000 in net capital losses in one year, save documentation showing the excess, as you can use it in future years to reduce your ordinary income further.

How Capital Losses Offset Capital Gains

Before capital losses can reduce your ordinary income, they must first offset any capital gains you have in the same tax year. The IRS treats capital gains and capital losses as related items that must be netted together. This netting process happens in a specific order based on whether gains and losses are short-term or long-term.

Picture a scenario with these transactions in a single year: you sold one stock at a short-term gain of $4,000, another stock at a short-term loss of $2,000, a mutual fund at a long-term gain of $3,000, and a bond at a long-term loss of $1,500. The calculation would work as follows: short-term gains of $4,000 minus short-term losses of $2,000 equals net short-term gain of $2,000. Long-term gains of $3,000 minus long-term losses of $1,500 equals net long-term gain of $1,500. These net gains would then be reported on your tax return, and you would owe taxes on both the $2,000 short-term gain at ordinary income rates and the $1,500 long-term gain at preferential long-term rates.

Now consider a different scenario where capital losses exceed capital gains. You had $2,000 in short-term gains, $1,000 in short-term losses, $500 in long-term gains, and $5,000 in long-term losses. Your short-term net position would be $1,000 gain. Your long-term net position would be $4,500 loss. These net amounts then combine, giving you an overall net capital loss of $3,500. You would deduct $3,000 of this against ordinary income and carry forward $500 to future years.

The matching rules work in your favor when you have significant losses. Losses eliminate gains first, and only the remaining losses reduce ordinary income. This means that if you have both gains and losses in the same year, you should calculate the net position carefully. Many people find it helpful to list all transactions in a spreadsheet organized by gain or loss and by holding period to avoid errors.

Practical Takeaway: Before claiming a capital loss deduction against ordinary income, calculate whether you have any capital gains in the same year that the losses should offset first.