Capital Loss
Key Takeaways
- A capital loss occurs when you sell an investment for less than your cost basis
- Capital losses can offset capital gains dollar-for-dollar to reduce taxes
- If losses exceed gains, up to $3,000 can be deducted against ordinary income annually
- Excess capital losses carry forward to future tax years indefinitely
Definition
A capital loss is the financial loss incurred when an investment is sold for less than its cost basis. If you purchased shares for $10,000 and sold them for $7,000, you have a capital loss of $3,000. Capital losses are the opposite of capital gains and have important tax implications.
Like capital gains, capital losses are classified as short-term (assets held one year or less) or long-term (assets held more than one year). Short-term losses first offset short-term gains, and long-term losses first offset long-term gains. After netting within categories, any remaining loss can offset gains in the other category.
Capital losses are only realized when you actually sell the investment. An unrealized loss (a decline in value without a sale) has no tax impact until the loss-generating sale occurs. This creates opportunities for strategic tax-loss harvesting.
How It Works
When you sell an investment at a loss, the loss is reported on your tax return along with any realized gains. The netting process works as follows: first, short-term gains and losses are netted together, then long-term gains and losses are netted together, and finally any remaining net gain or loss in one category offsets the other category.
If your total capital losses exceed your total capital gains for the year, you can deduct up to $3,000 of the net loss ($1,500 if married filing separately) against your ordinary income. Any losses beyond the $3,000 limit carry forward to future tax years and can be used to offset future gains or provide the $3,000 annual deduction.
There are important restrictions on claiming capital losses. The wash sale rule prohibits claiming a loss if you purchase a substantially identical security within 30 days before or after the sale. This prevents investors from selling to harvest a tax loss and immediately buying back the same investment.
Example
During a market downturn, you sell 100 shares of a tech stock for $6,000 that you purchased for $10,000, realizing a $4,000 long-term capital loss. In the same year, you sell another position for a $2,500 long-term capital gain. Your net capital loss is $1,500 ($4,000 loss - $2,500 gain). You deduct the full $1,500 against your ordinary income. If you are in the 24% tax bracket, this saves you $360 in taxes. Had the loss been $6,000 with the same $2,500 gain, the net loss of $3,500 would allow a $3,000 deduction this year, with $500 carrying forward to next year.
Why It Matters
Capital losses are one of the few silver linings of investment losses. By strategically realizing losses, investors can reduce their current tax bill, offset future gains, and improve their after-tax returns. The $3,000 annual deduction against ordinary income is available every year as long as carryforward losses remain.
Tax-loss harvesting — intentionally selling losing positions to capture tax benefits — is a widely used strategy, especially in taxable accounts. Many robo-advisors and financial advisors implement automated tax-loss harvesting to continuously capture losses throughout the year.
Advantages
- Offset capital gains dollar-for-dollar, reducing taxes on profitable sales
- Up to $3,000 in net losses deductible against ordinary income each year
- Unused losses carry forward indefinitely to offset future gains and income
- Strategic loss harvesting can improve after-tax investment returns
Limitations
- The $3,000 annual deduction against ordinary income is relatively small
- Wash sale rules restrict buying back the same security within 30 days
- Realized losses permanently reduce the cost basis of your portfolio
- Selling at a loss means missing out on potential recovery gains
Frequently Asked Questions
Related Terms
Browse more definitions in the financial terms glossary.