Indiana Personal Tax Extension | Form IT-9 | Application for Extension of Time to File

Modified on Sat, 13 Jun at 11:44 AM

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Indiana Personal Tax Extension Guide

Form IT-9 · Individual Income Tax · Personal Filing Guide

Your Filing Status

You've Been Extended

Your Indiana return is extended to November 16, 2026. File now to get your refund faster.

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Indiana's Extension: Federal Approval Plus 30 Extra Days

Indiana grants an automatic extension for filing personal income tax returns to taxpayers who have been approved for a federal extension by the IRS. Uniquely, Indiana adds 30 extra days beyond the standard 6-month federal extension period, giving Indiana taxpayers until November 16, 2026—one of the longest extension periods among all U.S. states.

Payment Is Still Due by April 15

Indiana's extended filing deadline does not extend the time to pay. Any Indiana income tax owed must be paid by April 15, 2026. To pay with your extension, use Form IT-9 (Application for Extension of Time to File). Unpaid balances after April 15 will begin accruing penalties and interest.

How to Make Extension Payments

Indiana payments are made through INTIME (Indiana Taxpayer Information Management Engine) at intime.dor.in.gov:

ACH / E-Check: Electronic bank payments via INTIME. No fees assessed.
Credit / Debit Card: Visa, MasterCard, and Discover accepted through INTIME. Fees apply to card payments.

Using Form IT-9

Form IT-9 (Application for Extension of Time to File) is used when mailing an extension payment to Indiana. Mail the form with payment to:
Indiana Department of Revenue
P.O. Box 6117
Indianapolis, IN 46206-6117

Late Filing and Payment Penalties

Indiana imposes a 10% penalty on unpaid tax for both failure to file and failure to pay. Because both penalties share the same rate and can apply simultaneously, not filing or paying on time can result in penalties of up to 20% of unpaid tax.

Best Practices

File IRS Form 4868 first to secure your federal extension—Indiana's automatic extension depends on it.
Pay any Indiana tax owed by April 15, 2026, using Form IT-9 (mail) or INTIME (online).
Use INTIME for ACH/e-check payments—no fees and instant confirmation.
Take advantage of Indiana's unique November 16 filing deadline—one of the longest in the country.

Final Thoughts

Indiana's extension policy is generous—the federal extension plus 30 additional days gives taxpayers until November 16, 2026 to file. The key obligation remains paying any balance by April 15. Use Indiana's INTIME portal for fee-free ACH payments.

Quick Reference Table

State Abbreviation	IN
State Name	Indiana
Extension Status	Approved with Federal Extension
Return Due Date	April 15, 2026
Extended Due Date	November 16, 2026
Other Information	Automatic 6-month extension with IRS approval, plus 30 additional days. Extended filing deadline is November 16, 2026—one of the longest in the U.S. Any taxes owed must be paid by April 15 to avoid penalties.
Online Payment	Indiana \| Online Tax Extension Payment
Payment Voucher Title	Form IT-9 \| Application for Extension of Time to File
State Payment Agency	Indiana Department of Revenue
Mailing Address with Payment	Indiana Department of Revenue P.O. Box 6117 Indianapolis, IN 46206-6117
Online Payment Options \| Credit Card	Via INTIME at intime.dor.in.gov. Visa, MasterCard, and Discover accepted. Fees apply.
Online Payment Options \| ACH Debit	Via INTIME at intime.dor.in.gov. ACH/e-check. No fees.
Failure to File Penalties	10% of unpaid tax.
Failure to Pay Penalties	10% of unpaid tax.

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