Capital Gains Tax Rates for 2026: What You'll Owe
April 20, 2026
10min read
taxes
I sold some rental property in Fort Collins last year. Did well on it, bought in 2018, sold in 2025, made a decent profit. Then I got the tax bill. Long-term capital gains, sure, but also depreciation recapture, net investment income tax, Colorado state tax. By the time everything settled, I was sending about 28% of my gain to various government entities.
Capital gains taxes confuse a lot of people. They're not ordinary income, but they're not exactly simple either. Here's your complete guide to what you'll owe in 2026.
Long-Term vs. Short-Term
The most important distinction: how long did you hold the asset? More than one year? Long-term capital gains. One year or less? Short-term capital gains. This matters enormously.
Short-term gains are taxed as ordinary income. Whatever your marginal tax bracket is, that's your rate. Could be 12%, could be 37%. Long-term gains get preferential rates: 0%, 15%, or 20% depending on your income.
This is why I never sell investments at a gain before holding them a year. Ever. The tax difference between short-term and long-term is too large to ignore. Patience literally pays.
The 2026 Long-Term Capital Gains Brackets
For 2026, the 0% rate applies to single filers with taxable income up to $48,350, married filing jointly up to $96,700. The 15% rate covers single filers up to $533,400, married up to $600,050. Above that, you're in the 20% bracket.
Note: these are taxable income thresholds, not gross income. After deductions. So a married couple making $120,000 gross might still have enough deductions to hit the 0% bracket on some of their gains.
The 0% bracket is incredible. If you can engineer your income to stay below that threshold, your long-term gains are literally tax-free. I've worked with retirees who live entirely on tax-free capital gains and Roth withdrawals. Zero federal income tax. It's completely legal.
The Net Investment Income Tax
If your modified adjusted gross income exceeds $200,000 (single) or $250,000 (married), you pay an additional 3.8% on investment income. This includes capital gains, dividends, and interest.
So a high earner in the 20% long-term gains bracket actually pays 23.8% federal. Plus state taxes. In California, that's another 13.3%. Total federal + state: 37.1%. Suddenly the "preferential" rate doesn't feel so preferential.
This is why tax loss harvesting matters more for high earners. A $10,000 loss saves $2,380 in taxes at the 23.8% rate. For someone in the 0% bracket, the same loss saves nothing.
State Taxes
Colorado taxes capital gains at the flat state income tax rate of 4.4%. Some states have no income tax at all (Texas, Florida, Washington, Nevada, Wyoming, South Dakota, Alaska, Tennessee, New Hampshire). Others have high rates (California up to 13.3%, New York up to 10.9%).
If you're considering a move in retirement, state tax treatment of capital gains should factor in. Moving from California to Nevada could save you 13.3% on every dollar of gains you realize. That's meaningful.
Strategies to Reduce Capital Gains Tax
Tax loss harvesting: offset gains with losses. Hold assets long-term: never pay short-term rates. Use tax-advantaged accounts: 401(k) and IRA growth isn't taxed annually. Time your gains: if you have a low-income year, realize gains then. Donate appreciated stock: get a deduction for the full value and avoid the gain entirely.
The tax loss harvesting calculator on this site helps with the first strategy. For the rest, talk to a CPA. The savings from good tax planning often exceed the cost of professional advice by 10x.
Short-Term vs Long-Term: The One-Year Rule
The difference between short-term and long-term capital gains treatment is one of the most important rules in investing. Hold an asset for 366 days? Long-term rates (0%, 15%, or 20%). Hold it for 364 days? Ordinary income rates (up to 37%).
I never sell appreciated assets before the one-year mark. Never. The tax savings are too significant. If I'm considering selling something at a gain and I'm close to the one-year anniversary, I wait. Patience literally pays.
This rule also affects tax loss harvesting. If you're selling at a loss, the holding period doesn't matter for loss treatment. All capital losses are equal. But if you're selling at a gain, that one-year threshold is everything.
Tax Gain Harvesting
Most people know about tax loss harvesting. Fewer know about tax gain harvesting. If you're in the 0% long-term capital gains bracket (taxable income under $48,350 single / $96,700 married), you can realize long-term gains with ZERO federal tax.
This is incredibly powerful for early retirees, people between jobs, or anyone with a low-income year. You can sell appreciated stock, pay no tax, immediately rebuy it (no wash sale rule for gains), and reset your cost basis higher. Future gains will be calculated from the new, higher basis.
I helped a client who took a sabbatical in 2024. His income was $35,000 for the year. We realized $50,000 in long-term gains. Federal tax: $0. Colorado tax: $2,200. He reset his basis and will save thousands in future taxes.
Record Keeping
The IRS requires you to track cost basis for all investments. Your broker does this automatically for covered securities (basically everything bought after 2011). But you should still review your 1099-B each year for accuracy.
I keep a simple spreadsheet: purchase date, purchase price, shares, current basis. When I sell, I know exactly what my gain or loss is. When I harvest losses, I document the replacement security and the 31-day window. At tax time, everything is organized and ready for my CPA.
Final Thoughts
Look, I'm just a guy in Denver with a spreadsheet habit and a dog who sheds too much. I don't have a crystal ball. I can't predict where the market is going next month or next year. Nobody can, despite what they might tell you on TV.
What I can do is show you the math. The numbers don't lie, even when we want them to. Compound interest works. Fees matter. Diversification protects you. Time is your greatest asset if you're young, and your greatest concern if you're not.
The tools on this site are free because I believe everyone deserves access to honest financial analysis. No sales pitch, no hidden agenda, no commissions. Just data and my occasionally sarcastic commentary.
If you take one thing from this article, let it be this: small decisions made consistently beat perfect decisions made occasionally. Start where you are. Use what you have. Do what you can. The rest is just compounding.
After analyzing thousands of portfolios at three different firms here in Colorado, I've developed a few principles that guide everything I write on this site. These aren't fancy theories from textbooks. They're observations from real people with real money making real mistakes.
First, complexity is the enemy of execution. The more complicated your investment strategy, the less likely you are to follow it consistently. I've seen PhDs in mathematics fail at personal finance because they couldn't stop tinkering. Meanwhile, my neighbor who barely graduated high school built a $2 million portfolio using nothing but a target-date fund and automatic contributions. Simplicity wins because simplicity is sustainable.
Second, behavior matters more than knowledge. Everyone knows they should buy low and sell high. But when the market drops 30%, emotions take over. I've watched incredibly smart people panic-sell at the bottom and miss the recovery. The best investment strategy is the one you'll actually stick with when things get ugly. That's usually the boring strategy.
Third, fees are the only thing you can control. You can't control market returns. You can't control inflation. You can't control what the Federal Reserve does. But you can absolutely control how much you pay in investment fees. And over decades, that control is worth hundreds of thousands of dollars.
Cooper is scratching at the door now, which means it's time for our afternoon walk along the South Platte. Before I go, let me leave you with this: the best financial decision you can make today is the one you actually follow through on. Not the perfect theoretical strategy. The one you implement. The one you stick with. The one that becomes a habit.
That's just my take. I'm a guy with a spreadsheet and a shedding dog. Do your own homework. And if you found this helpful, try one of the calculators on this site. The numbers might surprise you.
Optimizing Your Capital Gains Strategy
Smart investors think about capital gains taxes year-round, not just at tax time. Here are strategies I use and recommend:
Tax loss harvesting in taxable accounts to offset gains. Holding appreciated assets for at least one year to qualify for long-term rates. Donating appreciated securities to charity instead of cash (you get the full deduction without ever paying tax on the gain). Using tax-advantaged accounts for your highest-growth investments.
And my favorite: tax gain harvesting in low-income years. If you have a year with unusually low income, realize long-term gains at the 0% rate. You can realize up to the top of the 0% bracket each year with zero federal tax. That's potentially $48,350 of gains (single) or $96,700 (married) taxed at 0%.
Coordinate with your CPA. The rules are complex, the savings are real, and mistakes are expensive. I spend about $400 annually on tax planning advice that saves me $3,000+ in taxes. That's an 8x return on investment. Better than my portfolio.
M
About Marcus Thornton
Independent investment researcher based in Denver, Colorado. Former portfolio analyst with 14 years of experience. CFA charterholder. When not crunching numbers, you'll find him skiing the Rockies or fly-fishing the South Platte with his dog Cooper.
—Marcus T.