Montana
State Personal Income
Tax Extension

What Form does the state of Montana require to apply for an extension?

There is no state-specific form to request an extension, as the state of Montana automatically grants the extension for up to 6 months for individuals to file an income tax return with
the state.

When is the due date to file personal tax Form 2 with Montana?

Montana personal tax filings are due by May 17, for calendar tax filers, and the 15th day of the 4th month following the end of the taxable year for fiscal
year filers.

How do I pay my balance due to the state
of Montana?

If you owe Montana state taxes, your balance must be paid by the regular due date, or penalties and interest will be charged.

To make a payment with the state, use Payment Voucher (Form IT) to make
a payment.

• e-Pay option: Can make payments online using the TransAction Portal (TAP)

To pay electronically, visit State payment options.