Kentucky Tax on Capital Gains

Kentucky does not impose a separate or special tax on capital gains.

Instead, profits from selling assets—such as stocks, bonds, real estate, or business interests—are taxed as ordinary income under the state’s flat individual income tax system.

For 2025, Kentucky’s flat income tax rate is 4.00%. Under current law, this rate is scheduled to decrease to 3.5% for tax year 2026, further lowering the state tax burden on capital gains in the future.

Because Kentucky treats capital gains the same as wages or salary, there are no reduced or preferential rates for long-term gains at the state level.

This simplifies tax calculations but means capital gains are fully subject to state income tax in addition to any federal capital gains taxes owed.

How Kentucky Taxes Capital Gains

1. Treated as Ordinary Income
   Kentucky does not distinguish capital gains from other types of income. Profits from asset sales are taxed just like wages or business income.
2. Flat State Tax Rate
   Your capital gains are added to your other income and taxed at Kentucky’s flat rate:
   • 4.00% for 2025
   • 3.5% starting in 2026 (scheduled)
3. Federal and State Taxes Apply
   You must pay:
   • Federal capital gains tax, which uses tiered rates (0%, 15%, or 20% for long-term gains, plus possible surtaxes), and
   • Kentucky’s flat income tax on the same gain.

Example

Suppose you sell stocks and realize a $10,000 capital gain while living in Kentucky.

• Kentucky state tax (2025):
  $10,000 × 4.00% = $400
• Federal capital gains tax (rate depends on income and holding period) is calculated separately.

If the same sale occurred in 2026, the Kentucky state tax would drop to:

• $10,000 × 3.5% = $350

Key Takeaways

• Simple and Predictable
  Kentucky’s flat tax structure makes it easy to estimate the state tax owed on capital gains.
• Adds to Total Tax Cost
  While simple, the Kentucky tax applies on top of federal capital gains taxes, increasing the overall tax burden when you sell investments.
• Lower Rate Ahead
  The scheduled reduction to 3.5% in 2026 will slightly reduce state taxes on future capital gains.

Recommendation: File Electronically

Electronic filing (e-filing) is strongly recommended when reporting capital gains on your Kentucky tax return.

E-filing:

• Automatically applies the correct flat tax rate
• Ensures capital gains reported federally flow correctly to your state return
• Reduces calculation errors
• Speeds up refunds and confirmation from the Kentucky Department of Revenue

Most tax software programs make it easy to report investment sales and calculate both federal and Kentucky taxes accurately.

In Summary:
In Kentucky, capital gains are taxed the same as your paycheck—at a flat state rate. This approach simplifies filing and planning, but it also means investment profits increase your total state and federal tax bill.