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Department of Taxation and Finance

Income tax applications for filing extensions

Get more information if you need to apply for an extension of time to file your return.

Only individuals, partnerships and fiduciaries filing a calendar year return can request extensions online. Contact us to get a paper form if you can't file online.

Income tax applications for filing extensions
Form number Instructions Form title
IT-370 (Fill-in) IT-370-I (Instructions) Application for Automatic Six-Month Extension of Time to File for Individuals; Description of Form IT-370

If filed before the due date, will allow a taxpayer an automatic extension of six months to file Form IT-201, Resident Income Tax Return, or Form IT-203, Nonresident and Part-Year Resident Income Tax Return.
IT-370-PF (Fill-in) IT-370-PF-I (Instructions) Application for Automatic Extension of Time to File for Partnerships and Fiduciaries; Description of Form IT-370-PF

If filed before the due date, will allow a partnership or fiduciary an extension of time to file Form IT-204, Partnership Return, or Form IT-205, Fiduciary Income Tax Return.

Other information

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