5 Ways to Reduce Capital Gains Tax in 2026

The most tax-efficient charitable move remains donating appreciated securities held longer than one year. You bypass capital gains tax entirely and claim a fair-market-value deduction — a double benefit cash donations cannot match.

The maths: you bought $10,000 of stock five years ago, now worth $30,000. Selling and donating cash triggers $20,000 in long-term capital gains — costing up to $4,760 at the 20% rate plus the 3.8% net investment income tax. Donating the shares directly? Zero capital gains, and you still deduct the full $30,000 (subject to the 30% of AGI limit for appreciated property).

Donor-advised funds make this even simpler. Transfer appreciated shares into a DAF, take the deduction immediately, and distribute grants to charities on your own timeline. Fidelity Charitable, Schwab Charitable, and Vanguard Charitable all accept stock transfers with no minimum holding period after contribution.

The 2026 angle: with the OBBBA's $16,550 standard deduction, you need meaningful itemised deductions to beat the standard threshold. Bunching two years of charitable giving into one tax year — and donating appreciated shares rather than cash — clears the standard deduction hurdle while eliminating capital gains on the donated stock.

Asset allocation gets all the attention. Asset location — which investments sit in which account type — is the overlooked decision that directly reduces your tax drag.

The principle: put tax-inefficient assets (bonds, REITs, high-dividend stocks) in tax-deferred accounts (401(k), traditional IRA) where gains compound without annual taxation. Put tax-efficient assets (index funds, growth stocks, municipal bonds) in taxable brokerage accounts where the preferential long-term capital gains rate applies.

With the 10-year Treasury yielding 4.44% and the Fed funds rate at 3.64%, bond income is substantial. Holding a Treasury bond fund in a taxable account means that yield gets taxed as ordinary income — up to 37% for high earners. The same fund inside an IRA generates zero current tax liability.

For investors with both a Roth and traditional IRA, push your highest-growth assets into the Roth (gains are never taxed) and the slowest growers into the traditional IRA (you'll pay ordinary income tax on withdrawals regardless of growth). See our Roth vs. Traditional IRA comparison for the full decision framework.

December 31, 2026 is the hard deadline. Every capital gain deferred into a Qualified Opportunity Fund becomes taxable income on your 2026 return — regardless of whether you sell the QOF investment.

The good news: if you invested before 2019 and have held for 7+ years, you received a 15% basis step-up on the deferred gain. If you've held for 10+ years, gains on the QOF investment itself are permanently excluded from tax. That exclusion survives the deferral deadline.

The bad news: investors who entered in 2021 or later haven't reached the 10-year threshold, so they'll owe tax on both the original deferred gain and any QOF appreciation when they eventually sell. The 5-year / 10% step-up expired for most post-2021 investments.

The OBBBA created a new permanent QOZ program launching in 2027 with rolling five-year deferral periods. More flexible, but it won't retroactively extend the 2026 deadline for existing investments.

Action items for QOF holders:

• Calculate the deferred gain hitting your 2026 return — it retains its original character (short-term, long-term, or Section 1231)
• Harvest losses elsewhere to offset the recognised gain (see our tax-loss harvesting guide)
• If your QOF investment has declined in value, consider selling before year-end to limit the combined hit of deferred gain recognition plus unrealised QOF losses
• Make estimated quarterly payments that account for the deferred gain — the IRS underpayment penalty applies equally to QOZ income
• Watch for AMT interactions: the recognised deferred gain increases your AMTI, potentially accelerating your AMT exemption phaseout

Section 121 remains one of the most generous breaks in the code. Sell your primary residence and exclude up to $250,000 in gains ($500,000 married filing jointly) — completely tax-free. No age requirement, no income phase-out.

The requirements: own and use the home as your primary residence for at least 2 of the last 5 years. With 30-year mortgage rates at 6.38% as of late March 2026 — up from 5.98% just a month ago — housing transaction volumes are suppressed. But for homeowners sitting on pandemic-era appreciation, the exclusion is a powerful tool when you do sell.

Two planning moves worth considering:

Convert rental property to primary residence. Own an investment property with substantial appreciation? Moving in for two years before selling lets you claim the exclusion on a pro-rata basis. Only the years of primary-residence use generate excludable gain under the post-2008 rules, but the savings on a property with $400,000+ of appreciation can still be six figures.

Time sales around other capital events. The Section 121 exclusion doesn't count toward income for the net investment income tax (NIIT) threshold. But other capital gains in the same year do. If you're selling both a home and a stock portfolio, spreading the transactions across tax years keeps you below the $200,000/$250,000 NIIT threshold — saving 3.8% on the investment gains.

This strategy pairs naturally with Roth conversions. In a low-income year, harvest long-term gains at 0% and convert traditional IRA assets to Roth at a low ordinary income rate — a double optimisation that compounds for decades. See our Roth vs. Traditional IRA comparison for conversion mechanics.

Don't forget state taxes. The 0% federal rate doesn't eliminate state capital gains tax. California, New York, and New Jersey all tax capital gains as ordinary income — so a 0% federal bill could still come with a 9–13% state bill. States with no income tax (Texas, Florida, Nevada, Washington) deliver the full benefit.

HSA bonus: Maximising your HSA contribution reduces taxable income, potentially keeping more of your gains inside the 0% bracket. The $4,300 individual / $8,550 family contribution limits for 2026 provide meaningful headroom.