Montana I Business State Tax Extension I LLCs / Partnerships

Modified on Wed, 22 Jan at 2:28 PM

State NameMontana
Business Entity TypeLLCs / Partnerships
Extension StatusApproved Automatically
Return Due DateMarch 15, 2024
Extended Due DateSeptember 16, 2024
Other Information

* Montana grants you an automatic 6-month extension to file your business tax return.

* The extension is NOT an extension to pay any taxes you may have due. Tax payments are due by the original return due date.

Online PaymentMontana | Online Tax Extension Payment
Payment Voucher FormForm-PR | Montana Partnership Tax Payment Voucher
State Payment AgencyMontana Department of Revenue
Mailing Address with Payment

Montana Department of Revenue
PO Box 8021
Helena, MT 59604-8021

Failure to File PenaltiesLesser of $50 or tax due.
Failure to Pay Penalties1.2% a month or fraction of a month on the unpaid tax, up to 12%.

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