National Changes May Affect Your Tax Filings in 2026

Postmark Delays

Due to federal government changes at the United States Postal Service, postmarks may no longer reflect the date you drop off your mail at your local post office. The postmark date is used to determine timely filing in Kentucky, so a mailing delay could trigger penalties or interest.

• What can taxpayers do to protect themselves?
  • File electronically to remove uncertainty
  • Request a manual postmark when dropping off items at the post office
  • Mail early, don’t wait until the deadline
  • Use certified or registered mail for proof of mailing
  For more details, see the USPS Release.