Capital Gains Tax: What You Owe and How to Pay Less

Short-Term vs. Long-Term Capital Gains

The IRS treats capital gains differently based on how long you held the asset.

Short-term gains (held less than 1 year) are taxed as ordinary income — at your regular tax rate (10-37%). For a high earner, that could mean paying 37% federal tax on stock profits from a quick trade.

Long-term gains (held more than 1 year) get preferential rates:
- 0%: Taxable income up to $47,025 (single) / $94,050 (married)
- 15%: Taxable income up to $518,900 (single) / $583,750 (married)
- 20%: Above those thresholds

Plus the 3.8% Net Investment Income Tax (NIIT) for incomes above $200,000 (single) or $250,000 (married).

The tax difference is massive. A $50,000 gain on stocks held 11 months costs $12,000 in tax (24% bracket). Wait one more month and it's $7,500 (15% rate). That extra month saves $4,500.

State Capital Gains Taxes

On top of federal rates, most states tax capital gains as ordinary income. The combined rate can be significant:

Highest combined rates (federal 20% + NIIT 3.8% + state):
- California: 37.1% (13.3% state)
- New York City: 35.8% (10.9% state + 3.876% city)
- Oregon: 33.7% (9.9% state)
- Minnesota: 33.6% (9.85% state)

No state capital gains tax:
- Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, Wyoming — 0% state rate
- New Hampshire — 0% on capital gains (only taxes interest/dividends)

The difference between selling $200,000 in appreciated stock in California vs. Texas: California owes ~$74,200 total; Texas owes ~$47,600. That's $26,600 in state tax alone.

See your state's rate: Capital Gains Calculator.

Legal Strategies to Minimize Capital Gains Tax

Hold for 1+ years. The simplest strategy — holding investments over 12 months qualifies for the lower long-term rate. This alone can cut your tax rate in half.

Tax-loss harvesting. Sell losing investments to offset gains. You can offset unlimited gains with losses, plus deduct up to $3,000 in net losses against ordinary income per year. Unused losses carry forward indefinitely.

Use the primary residence exclusion. When you sell your home, the first $250,000 in gains (single) or $500,000 (married) is tax-free if you lived there 2 of the last 5 years. This is the largest tax break most homeowners will ever receive.

Maximize tax-advantaged accounts. Gains inside 401(k)s, IRAs, and Roth IRAs are not taxed annually. Roth account gains are never taxed on withdrawal. Invest the most volatile, highest-growth assets inside these accounts.

Gift or donate appreciated assets. Donating stock worth $10,000 (that you bought for $3,000) lets you deduct $10,000 AND avoid paying tax on the $7,000 gain. Gifting to family members in lower tax brackets can also reduce the total tax bill.

Qualified Opportunity Zones. Investing gains in a QOZ fund defers the tax and can permanently exclude up to 15% of the gain after 7 years.