Kentucky estimated tax payments for 2026
If your estimated Kentucky tax after withholding and refundable credits is more than $500, you generally have to make estimated payments. Kentucky's 2026 individual income tax rate is 3.5%.
The form is Form 740-ES, and you can generally pay online instead of mailing it.
| Payment | Due |
|---|---|
| First payment | April 15, 2026 |
| Second payment | June 15, 2026 |
| Third payment | September 15, 2026 |
| Fourth payment | January 15, 2027 |