Your 2023 federal Form 1040-X amended return is eligible for electronic filing if the original return was successfully e-filed using TurboTax. If you Efiled form 1040X, you don't need to mail a copy of the 1040X form.
However, If you are mailing in your amended return, Include copies of any forms and/or schedules that you're changing or didn't include with your original return.
To avoid delays, file Form 1040-X only after you've filed your original return. Generally, for a credit or refund, you must file Form 1040-X within 3 years after the date you filed your original return or within 2 years after the date you paid the tax, whichever is later.
irs.gov
For KY amended return:
Mail the Form to KY Tax Department to:
Refund Amendment Return:
Kentucky Department of Revenue
PO Box 856970
Louisville, KY 40285-6970
Tax Due Amendment Return:
Kentucky Department of Revenue
PO Box 856980
Louisville, KY 40285-6980
KY Department of Revenue