| State Abbreviation | KY |
| State Name | Kentucky |
| Extension Status | Approved with Federal Extension |
| Return Due Date | April 15, 2025 |
| Extended Due Date | October 15, 2025 |
| Other Information |
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| Online Payment | Kentucky | Online Tax Extension Payment |
| Payment Voucher Title | Form 740EXT | Application for Extension of Time to File |
| State Payment Agency | Kentucky Department of Revenue |
| Mailing Address with Payment | Kentucky Department of Revenue P.O. Box 1190 Frankfort, KY 40602-1190 |
| Online Payment Options | Credit Card | Access the Department of Revenue’s website at https://epayment.ky.gov/EPAY. Payments may also be made by phone at 502-564-4581 |
| Online Payment Options | ACH Debit | Access the Department of Revenue’s website at https://epayment.ky.gov/EPAY. Payments may also be made by phone at 502-564-4581. |
| Failure to File Penalties | Failure to file by due date Greater of: • 2% of outstanding tax liability for each 30-day period, not to exceed 20%; or • $10. Failure to file upon written request Greater of: • 5% of estimated tax assessed for each 30-day period, not to exceed 50%; or • $100. |
| Failure to Pay Penalties | 30 daysGreater of: • 2% of outstanding tax liability for each 30-days, not to exceed 20%; or • $10. |
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