Tax-Loss Harvesting in 2026: How to Cut Your Tax Bill

01Quick Answer: What is Tax-Loss Harvesting?

Tax-loss harvesting is a legal strategy that allows investors to reduce their tax liability. You sell investments at a loss to offset capital gains from other investments. If your losses exceed your gains, you can then deduct up to $3,000 of those excess losses against your ordinary income, like wages. Any remaining losses can be carried forward to future tax years. This strategy applies to sales settled by December 31, 2026, for the 2026 tax year.

02What is Tax-Loss Harvesting and Why Does it Matter?

Tax-loss harvesting involves selling an investment for less than you paid for it. This creates a capital loss. You then use this capital loss to offset capital gains from other investments you sold for a profit. The goal is to reduce the amount of capital gains tax you owe.

This strategy matters because it directly impacts your tax bill. Fewer taxable gains mean less money paid to the IRS. For young earners, new workers, creators, and entrepreneurs, keeping more of your hard-earned money is crucial. It frees up cash for other money moves, like increasing savings or paying down debt.

The process is straightforward: identify investments in your taxable brokerage account that are currently trading below your purchase price. Sell them to realize the loss. Then, use that loss to reduce your taxable gains. This is a year-round strategy, not just a year-end scramble.

03How Does Tax-Loss Harvesting Work in 2026?

Tax-loss harvesting follows a specific order for offsetting income. First, your capital losses offset any capital gains dollar-for-dollar. Short-term losses offset short-term gains, and long-term losses offset long-term gains. If you have an excess of one type of loss, it can then offset the other type of gain.

After all capital gains are offset, if you still have remaining capital losses, you can use them to reduce your ordinary income. The IRS allows you to deduct up to $3,000 of these excess capital losses against your ordinary income per year. For married individuals filing separately, this limit is $1,500 (Source: smartasset.com).

Any capital losses that exceed the $3,000 (or $1,500) annual limit are not lost. You can carry these unused losses forward indefinitely. They can then offset capital gains or up to $3,000 of ordinary income in future tax years. This carryforward feature makes tax-loss harvesting a multi-year strategy.

04What is the Capital Loss Deduction Limit for 2026?

The annual limit for deducting capital losses against ordinary income is $3,000 for most filers in 2026. This means if your total capital losses exceed your total capital gains by more than $3,000, you can only deduct $3,000 of that excess from your wages or other ordinary income. This $3,000 limit has been consistent since 1978 (Source: bogartwealth.com).

For married individuals who file their taxes separately, the deduction limit is halved. They can only deduct up to $1,500 of excess capital losses against their ordinary income. It is important to know your filing status when planning your tax strategy.

Remember, this limit only applies to the amount you can deduct against ordinary income. There is no limit to how much capital loss you can use to offset capital gains. If you have $10,000 in capital gains and $10,000 in capital losses, you can offset all of those gains, regardless of the $3,000 ordinary income limit.

05How Does the Wash Sale Rule Affect Me?

The wash sale rule is a critical IRS regulation you must understand for tax-loss harvesting. It prevents investors from claiming a tax loss if they sell a security and then repurchase the same or a "substantially identical" security within a 61-day window. This window includes 30 days before the sale, the day of the sale, and 30 days after the sale (Source: jupid.com).

If you trigger a wash sale, the loss you attempted to claim is disallowed for tax purposes. Instead, that disallowed loss is added to the cost basis of the newly purchased shares. This effectively defers the loss, meaning you won't realize the tax benefit until you sell the new shares. The rule ensures you cannot claim a loss while maintaining continuous market exposure to the same investment.

For example, if you sell 100 shares of Company A stock at a $500 loss on December 1, 2026, you cannot buy Company A stock again before December 31, 2026, or after December 31, 2026, until January 1, 2027. Repurchasing within this period would trigger a wash sale. This rule applies to all taxable accounts, including those held by your spouse.

Important for 2026: As of 2026, the wash sale rule does not apply to cryptocurrency (Source: instead.com). This means crypto investors can sell at a loss and immediately repurchase the same crypto to claim the loss. This 'loophole' is widely expected to be closed in the future, so keep an eye on future tax legislation.

06Can I Carry Forward Unused Capital Losses?

Yes, you can carry forward any capital losses that exceed your annual deduction limit. This means if you have more than $3,000 in excess losses after offsetting all gains and deducting the maximum against ordinary income, the remainder is not wasted. You can use these losses in future tax years.

The carryforward is indefinite. There is no time limit on how long you can carry forward these losses. They will remain available to offset future capital gains, and up to $3,000 of ordinary income each year, until they are fully used. This provides a long-term benefit for investors who experience significant losses in a given year (Source: kiplinger.com).

Keeping meticulous records of your capital losses and carryforwards is essential. The IRS requires you to track these amounts accurately year after year. Your brokerage firm will report your realized gains and losses, but you are responsible for tracking the carryforward amounts on your tax forms.

07Short-Term vs. Long-Term Capital Gains and Losses: What's the Difference?

The distinction between short-term and long-term capital gains and losses is crucial for tax-loss harvesting. It impacts how gains and losses are netted and the tax rates applied. An asset is considered short-term if you held it for one year or less. If you held it for more than one year, it is long-term.

Short-term capital gains are taxed at your ordinary income tax rates, which can be as high as 37% for high earners in 2026 (Source: Research Brief). Long-term capital gains, however, receive preferential tax treatment. For 2026, the long-term capital gains tax rates are 0%, 15%, or 20%, depending on your overall taxable income (Source: Research Brief).

When you harvest losses, you first net short-term losses against short-term gains. Then, long-term losses against long-term gains. If you have net losses in one category, they can then offset net gains in the other category. For example, a net short-term loss can offset a net long-term gain, and vice versa. This netting process helps reduce your tax liability at the highest applicable rates first.

08Which Accounts Are Eligible for Tax-Loss Harvesting?

Tax-loss harvesting applies exclusively to investments held in taxable brokerage accounts. These are accounts where your investments are subject to capital gains tax each year they are sold for a profit. Examples include individual brokerage accounts, joint brokerage accounts, and trusts.

This strategy does not apply to tax-advantaged retirement accounts, such as 401(k)s, IRAs, Roth IRAs, or 529 college savings plans. Investments within these accounts grow tax-deferred or tax-free, meaning you do not pay capital gains tax on sales within the account. Therefore, losses realized in these accounts cannot be used to offset gains or ordinary income for tax purposes (Source: newyorklife.com).

Focus your tax-loss harvesting efforts on your non-retirement investment accounts. This is where you can realize the most direct tax benefits. If you need help calculating potential tax leaks or optimizing your strategy, a free tax-leak calculator can be a helpful tool.

09How Can I Avoid a Wash Sale and Stay Invested?

Avoiding the wash sale rule while still maintaining market exposure requires careful planning. You want to claim the loss but not repurchase the exact same security too soon. Here are two common strategies:

Wash Sale Avoidance Checklist

• Buy a different, but similar, security: Instead of repurchasing the identical stock, buy a different stock or exchange-traded fund (ETF) in the same industry or with similar investment characteristics. For example, if you sell an S&P 500 index ETF at a loss, you could buy a different S&P 500 index ETF from a different provider, or a total market index ETF. This allows you to stay invested in the market segment without triggering the wash sale rule.
• Wait 31 days: If you are set on repurchasing the exact same security, you must wait at least 31 days after the sale date before buying it back. This ensures you are outside the 61-day wash sale window. This strategy means you will be out of the market for that specific security for over a month, potentially missing out on any rebound.

Always verify that the new security is not considered "substantially identical" by the IRS. This generally means it should have different issuers, terms, or underlying assets. Consult your brokerage or tax professional if you are unsure.

10Are There Other Benefits to Tax-Loss Harvesting?

Beyond directly reducing your capital gains and ordinary income, tax-loss harvesting offers other benefits, especially for higher earners. It can help reduce your exposure to the Net Investment Income Tax (NIIT).

The NIIT is a 3.8% tax that applies to certain investment income, including capital gains, for taxpayers with a Modified Adjusted Gross Income (MAGI) above specific thresholds. For 2026, this threshold is $200,000 for single filers and $250,000 for married couples filing jointly (Source: Research Brief). By reducing your capital gains through tax-loss harvesting, you can lower your MAGI and potentially avoid or reduce the amount of NIIT you owe.

This strategy can also help you rebalance your portfolio. Selling underperforming assets at a loss allows you to reinvest in assets that align better with your current financial goals or market outlook. This can lead to a more optimized portfolio over time. For more general financial guidance, explore our other guides on the blog.

11When Should I Harvest Losses and What Records Do I Need?

The best time to harvest losses is throughout the year, not just at year-end. Market dips can occur at any time, providing opportunities to realize losses. Waiting until December might mean missing out on significant tax-saving chances. For your losses to count for the 2026 tax year, all investment sales must settle by December 31, 2026 (Source: Research Brief).

Meticulous record-keeping is non-negotiable for tax-loss harvesting. The IRS requires accurate documentation to support your claimed losses. This includes:

Essential Records for Tax-Loss Harvesting

• Purchase date and cost basis: The date you bought the security and how much you paid for it.
• Sale date and proceeds: The date you sold the security and the amount you received.
• Realized loss amount: The calculated difference between your cost basis and sale proceeds.
• Proof of wash sale compliance: Documentation showing you did not repurchase the same or a substantially identical security within the 61-day window.
• Loss carryforward amounts: Records of any unused losses carried forward from previous years and into future years.

Most brokerage firms provide year-end statements (Form 1099-B) that summarize your sales and cost basis. However, it is your responsibility to ensure these records are accurate and to track any wash sales or loss carryforwards. Keeping good records prevents issues during tax audits.

12What's New for 2026: The OBBBA Impact on Your Taxes

While the core mechanics of tax-loss harvesting (the $3,000 deduction limit and wash sale rule) remain unchanged for 2026, the overall tax landscape has shifted due to the "2025 One Big Beautiful Bill Act" (OBBBA), signed in July 2025. This act made several significant adjustments that impact your overall tax strategy.

OBBBA made permanent most individual tax provisions from the 2017 Tax Cuts and Jobs Act (TCJA). This includes the seven federal income tax rates (10%, 12%, 22%, 24%, 32%, 35%, 37%), though the income thresholds for these brackets were adjusted upwards for inflation in 2026 (Source: Research Brief).

The standard deduction also saw increases for 2026. For single filers, it is $16,100; for married filing jointly, it is $32,200; and for heads of households, it is $24,150. OBBBA specifically boosted the 2025 standard deduction by $750 for single filers and $1,500 for joint filers, on top of regular inflation adjustments for 2026 (Source: Research Brief). This means fewer people may itemize, making the standard deduction more impactful.

Other key changes include:

• The State and Local Tax (SALT) deduction cap increased to $40,400 for 2026, up from $10,000, with a phase-out above $500,000 MAGI.
• The 20% Qualified Business Income (QBI) deduction (Section 199A) was made permanent, with adjusted income thresholds and a slower phase-in range for 2026.
• The Alternative Minimum Tax (AMT) exemption amounts and phaseout thresholds were adjusted, potentially increasing tax for some.
• New deductions for qualified tip income and overtime pay were introduced.
• The nonrefundable Child Tax Credit permanently increased to $2,200 per child, with inflation adjustments, and an enhanced Child and Dependent Care Tax Credit for middle-income families begins in 2026. These benefits can be especially helpful for families; for example, single mothers can explore how Head of Household and the EITC can mean $6,000 to $10,000 in refunds.
• The estate tax exemption rises to $15,000,000 for individuals ($30,000,000 for married couples) starting in 2026.
• Critically, for 2026, the wash sale rule does not apply to cryptocurrency, allowing crypto investors to sell at a loss and immediately repurchase to claim the tax benefit (Source: Research Brief). This is a significant distinction from traditional securities.

Educational, Not Financial or Tax Advice: This information is for educational purposes only. Andrae Alexander and Alexa Marie are educators, not licensed tax or financial professionals. Consult a qualified professional for personalized advice.