Email template

Tax extension confirmation email

An extension is easy to file and easy to misunderstand. The client needs to know the new filing date, the payment date that did not move and the records the firm still needs. This template says all three in plain words.

Reviewed November 3, 2026

When to use it

Send this after the extension is accepted, with the new filing date and the payment instructions for the client's situation.

Subject

Your {{tax_year}} extension is filed

Hi {{client_name}},

Your {{tax_year}} extension has been filed. The new filing date is {{extended_date}}.

An extension gives more time to file, not more time to pay. Any tax owed for {{tax_year}} was still due on {{original_date}}. If you have not paid, please pay as soon as possible to limit interest and penalties.

We still need these records to prepare the return:

{{open_items}}

You can upload them here: {{checklist_link}}

If you have a question about the extension or the payment, reply to this email.

Thank you, {{firm_name}}

Replace the placeholders in braces with the client's details. Keep the client's tax ID or account number out of the email.

Notes before you send

  • State the new filing date and the original payment date separately.
  • Do not imply that the extension moves the payment deadline.
  • List the records still missing, not the whole organizer again.
  • Keep the extension confirmation with the client's file.

Questions about this template

Does an extension give more time to pay?

No. An extension gives more time to file the return. The tax owed is still due by the original deadline, and interest and penalties can apply after that date.

What is the extended deadline for an individual return?

Form 4868 gives an automatic six-month extension. A 2026 individual return that was due April 15, 2027 can be filed by October 15, 2027.

What records does the firm still need?

The records that were missing when the extension was filed, such as a late K-1, a corrected 1099 or a brokerage statement. The extension does not replace the document.

Can the client pay after the extension is filed?

The client can pay at any time, but the payment is still due by the original date. Paying with the extension limits the interest and penalties.

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