2025 Indiana Income Tax Filing Deadlines for 2024 Returns

Indiana State Income Taxes for the 2024 tax year can be prepared and e-filed, along with your IRS or Federal Income Tax Return. You can also find out how to prepare and e-file just an Indiana state return. Check the deadlines for IRS or Federal Tax Returns.

Tax Deadlines and the Indiana Tax Day

The majority of deadlines listed here are for the 2024 tax year and are due in 2025; some apply to upcoming years and some are IRS or federal deadlines. After Oct. 15 you can no longer e-file tax returns or current year tax amendments. They will have to be filed via paper tax forms.

Deadline

Type

Description

Prepare, eFile, Download
IN + IRS Tax Return

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Start Federal and Indiana Tax Returns

April 15, 2025

Income Tax Return

Prepare and e-File an IRS (Due Date April 15) and Indiana State Income Tax Return (Due Date April 15) until October 15 - eFileIT.

April 15, 2025

Income Tax Extension

See Indiana Income tax extension details.

November 17, 2025

Income Tax Return after the April 15 Indiana Tax Extension

This is the last day to e-file an Indiana state income tax return for extension filers and late filers. You can only e-file your Indiana return together with your IRS return - eFileIT. To file by paper, see below.

Nov. 17 via Nail-In Forms.
Forms incl. Mailing Address

Individual Income Tax Return after the Deadline

This is the deadline for taxpayers who got an IN tax extension to file their Indiana return by mail. See instructions on how to only - without the IRS return - prepare and file an Indiana tax return on eFile.com.

Complete and Mail In Now

Tax Amendment for all Tax Years. File as soon as possible.

See detailed instructions on how to prepare and mail in an Indiana State Income Tax Return Amendment.

IRS Due Dates

IRS Tax Return, Extension, Amendment Deadlines

See detailed current and future federal or IRS income tax deadlines.

All State Deadlines

Other State Tax Return, Extension, Amendment Deadlines

Select respective state tax return deadlines.

April 15, 2026

2022 Indiana Income Tax Return Refund

The last day to file - you will not face late filing penalties - and claim your 2022 Indiana Income Tax Return Refund. This deadline does not apply if you owe 2022 Income Taxes. See details on unclaimed refunds.

April 15, 2027

2023 Indiana Income Tax Return Refund

The last day to file - you will not face late filing penalties - and claim your 2023 Indiana Income Tax Return Refund. This deadline does not apply if you owe 2023 Income Taxes. See details on unclaimed refunds.

April 15, 2028

2024 Indiana Income Tax Return Refund

The last day to file - you will not face late filing penalties - and claim your 2024 Indiana Income Tax Return Refund. This deadline does not apply if you owe 2024 Income Taxes. See details on unclaimed refunds.

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