If you’re selling stocks, property, or other assets in 2026, understanding capital gains tax is crucial. I recently used a free calculator to estimate my tax liability and found it surprisingly straightforward. Here’s what I learned about calculating capital gains tax, tax brackets, and net profit.

Short-Term vs. Long-Term Capital Gains: What’s the Difference?

Capital gains are categorized as short-term or long-term based on how long you’ve held the asset. Short-term gains apply to assets held for less than a year and are taxed at your ordinary income tax rate. For example, if you’re in the 24% tax bracket and sell stocks held for six months, you’ll owe 24% on the profit.

Long-term gains, on the other hand, apply to assets held for over a year and are taxed at lower rates. For 2026, the long-term capital gains tax rates are projected to be 0%, 15%, or 20%, depending on your income. If you’re single and earn $50,000 annually, you’d likely fall into the 0% bracket for long-term gains.

Calculating Your Tax Liability: A Real Example

Let’s say you sell an investment property held for three years, making a $100,000 profit. If your taxable income is $80,000, you’d fall into the 15% long-term capital gains bracket. That means you’d owe $15,000 in taxes, leaving you with $85,000 net profit.

But don’t forget about state taxes! Some states add their own capital gains tax. For instance, California imposes a 13.3% rate, which would add $13,300 to your tax bill in the example above. Always factor in both federal and state taxes to get an accurate estimate.

Qualified Dividends and How They Fit In

Qualified dividends are taxed at the same rates as long-term capital gains, which can save you money compared to ordinary income tax rates. If you receive $5,000 in qualified dividends and fall into the 15% bracket, you’d owe $750 in taxes. Non-qualified dividends, however, are taxed at your ordinary income rate, so it’s worth understanding the distinction.

Using a capital gains tax calculator can help you estimate your liability quickly and accurately. I found it especially useful for factoring in both federal and state taxes, as well as understanding how dividends impact my overall tax bill.

Full breakdown: https://returnmytax.com/capital-gains-tax