Kentucky Form 8879-K is the Kentucky Individual Income Tax Declaration for Electronic Filing. This form is used by taxpayers who file their state income tax returns electronically. It serves as a declaration confirming that the taxpayer has authorized the electronic transmission of their return and agrees with the information submitted. This form must be completed by taxpayers filing electronically, including those using an Electronic Return Originator (ERO). It is essential for ensuring that the tax return is legally valid and that the taxpayer consents to electronic filing. The form also contains sections for refund or tax payment preferences, such as choosing direct deposit or direct debit for any amounts owed or refunded.
How to File Kentucky Form 8879-K
Form 8879-K is used in electronic filing systems for Kentucky state income tax returns. It is required for returns filed without a Federal PIN and for online filing. The form should not be mailed; it must be kept by the Electronic Return Originator (ERO) or the taxpayer filing from home for a period of three years. Before completing the form, ensure that the Kentucky tax return is fully prepared, and the necessary information is entered correctly.

How to Complete Kentucky Form 8879-K: Line-by-Line Instructions
- Taxpayer’s Name and Social Security Number
- Enter your full legal name and Social Security number. This ensures your identity is properly recorded on the form.
- Spouse’s Name and Social Security Number
- If filing jointly, enter your spouse’s full name and Social Security number in this section.
- Part I—Tax Return Information
- Line 1: Enter your Kentucky taxable income from Form 740, Line 11 or Form 740-NP, Line 13.
- Line 2: Enter your total tax liability from Form 740, Line 28 or Form 740-NP, Line 28.
- Line 3: Enter your total payments from Form 740, Line 32 or Form 740-NP, Line 32.
- Line 4: If you owe taxes, enter the amount from Form 740, Line 36 or Form 740-NP, Line 36.
- Line 5: If you are entitled to a refund, enter the amount from Form 740, Line 41 or Form 740-NP, Line 41.
- Part II—Payment Methods
- Direct Deposit of Refund: If you are getting a refund, you can choose to have it directly deposited into your account by completing this section.
- Direct Debit of Tax Due: If you owe taxes, you can choose to have the payment directly debited from your account. Provide the routing number, account number, type of account (savings or checking), the debit amount, and the desired debit date.
- Estimate Tax Debit: If you are paying estimated taxes, enter the amounts to be debited and choose the debit dates.
- Part III—Taxpayer Declaration
- Line 11: You must declare that you consent to the direct deposit of your refund (if applicable) and confirm that all information entered on Lines 6-10 is correct.
- Line 12: If you do not wish to have your refund directly deposited, select this option.
- Line 13: Authorize the Kentucky Department of Revenue to initiate an ACH electronic funds withdrawal to pay your state taxes or estimated taxes. You must also consent to the disclosure of information related to the transaction.
- Part IV—Electronic Return Originator (ERO) and Paid Preparer
- The ERO or paid preparer must complete this section. The ERO must verify that the form is completed correctly and that the taxpayer’s signature is obtained. If the preparer is also the ERO, they must check the “paid preparer” box.
- The ERO must retain the form for three years. A paid preparer who is not the ERO must sign and complete the paid preparer section.