2024 Idaho State Tax Deadlines
Idaho Individual Income Tax Filing Deadlines and Extensions for 2024
If you are a resident, a part-year resident with income from Idaho sources, or a nonresident of Idaho with income from Idaho sources, you might be required to file Idaho State Taxes. We look at the most important tax deadlines and tax extensions for Idaho in 2024.
Idaho Business Tax Deadlines for 2024
C Corporation
Idaho C Corporation Tax Deadlines for 2024
You must file & pay Corporate Income Taxes in Idaho by April 15, 2025.
File by Mail must be postmarked by the due date.
Form:
41 - Idaho Corporation Income Tax Return
Extension to File Taxes in Idaho for 2024
You must send payment for taxes in Idaho for the tax year 2024 by April 15, 2025.
The Extension Deadline is October 15, 2025, to file your Idaho corporation income tax return.
Idaho automatically grants 6 months extensions on filing corporate income tax returns. This means you do not need to file for an extension in Idaho.
This is an extension to FILE, not an extension to PAY – payment is still due April 15, 2025.
Pass-Throughs
Idaho S-Corporation and Partnership Tax Deadlines for 2024
You must file & pay S-Corporation or Partnership Income Taxes in Idaho by April 15, 2025.
File by Mail must be postmarked by the due date.
Form:
65 -Partnership Return of Income
41S - S Corporation Income Tax Return
Extension to File Taxes in Idaho for 2024
You must send payment for taxes in Idaho for the tax year 2024 by April 15, 2025.
The Extension Deadline is October 15, 2025, to file your Idaho income tax return.
Idaho automatically grants 6 months extensions on filing income tax returns. This means you do not need to file for an extension in Idaho.
This is an extension to FILE, not an extension to PAY – payment is still due April 15, 2025.
Idaho Individual Tax Deadlines for 2024
Estimated Tax Deadline for Idaho 2024:
Estimated tax payments are typically made on the following dates:
- April 18, 2024
- June 17, 2024
- September 16, 2024
- January 15, 2025
Individual Tax Deadline for Idaho 2024:
You must file and pay Individual Income Taxes in Idaho by April 15, 2024.
- File Online: Idaho Tax Commission offers options for filing online.
- File by Mail: Must be postmarked by the due date.
- Applicable Forms: Form 40 for full-time residents, Form 43 for part-year and nonresidents.
Extension to File Taxes in Idaho for 2024:
- Payment for taxes for the fiscal year 2023 must be sent by April 15, 2024.
- The Extension Deadline to file your Idaho Individual Income tax return is October 15, 2024.
- Idaho grants 6 months extensions automatically for filing personal income taxes, meaning you do not need to file for an extension. However, this is an extension to file, not an extension to pay – payment is still due by April 15, 2024.
Sources
The material discussed on this page is meant for general illustration and/or informational purposes only and is not to be construed as investment, tax, or legal advice. You must exercise your own independent professional judgment, recognizing that advice should not be based on unreasonable factual or legal assumptions or unreasonably rely upon representations of the client or others. Further, any advice you provide in connection with tax return preparation must comply in full with the requirements of IRS Circular 230.
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