Filed a tax extension? Prepare for October 15 before the last week
Prepare your 2025 federal return for the regular October 15, 2026 extension deadline, and review payment records separately from filing.
Key takeaways
Confirm that a valid extension applies to your return.
An extension to file is not an extension to pay.
Separate 2025 filing records from 2026 estimated-tax records.
Confirm the tax year and the deadline
For an individual with a valid regular extension, the 2025 federal return is generally due October 15, 2026. The IRS explains that an extension gives more time to file, not more time to pay. Disaster relief, overseas rules, or another special situation can change timing. Ask your preparer to verify your applicable deadline rather than assuming every taxpayer has the same date.
Resolve missing information before the appointment
Create a list of expected income documents and mark each as received, corrected, or still missing. Include any extension confirmation and payments made for the 2025 tax year. Keep current-year estimated payments in a separate folder so they are not confused with last year's balance. If something is missing, tell the preparer now and ask how to obtain it.
Leave time to review and confirm submission
Bring identification, the prior return, income documents, and relevant expense records to Cardona's. Ask what still needs verification before signing. After submission, keep the completed return and electronic acceptance confirmation, not just a message saying an appointment is finished. If a balance remains, discuss payment options promptly; do not assume the extension suspended interest or penalties.
- Extension confirmation and 2025 payment receipts
- Income documents and unresolved missing items
- Time to review, sign, and verify acceptance
Common questions
Does this date apply to 2026 income?
This guide concerns the 2025 individual federal return being filed in 2026. Current-year estimated payments are a separate matter.
Did my extension also extend the payment deadline?
A regular filing extension does not extend the payment deadline. Have the preparer review any special relief that may apply.
