Testing Labs

Citizen Services Call Center

Contact Us Online

Phone

(406) 444-6900

TDD

Montana Relay 711

Email

DORHelp@mt.gov

We’re available Monday through Thursday, 9:00 a.m. until 4:00 pm. and Friday, 9:00 a.m. until 1:00 p.m.

Taxpayer Advocate

If you need help working with the department or figuring out our audit, appeals, or relief processes, the Taxpayer Advocate can help.

Learn More

Payment Options

TransAction Portal (TAP)

Make payments online using the TransAction Portal.

Request a Payment Plan

You can request a payment plan for making tax payments through TAP. Requesting a payment plan requires you to be logged in. Learn more about Requesting a payment plan.

Payment Vouchers

You may also make payments by mail using a payment voucher. The appropriate payment vouchers for each tax taype are available in our Forms Repository.

Filing Options

Free File Alliance

The Free File Alliance allows commercial income tax software providers to offer free tax filing services to qualified taxpayers.

Approved Software Providers

Commercial software available from software providers.

TransAction Portal (TAP)

Businesses, Alcoholic Beverage Licensees, and Livestock Owners can file and renew most account types through TAP.

MT QuickFile

You may use MTQuickfile to file for your Montana Elderly Homeowner/Renter Credit if you do not otherwise have a filing obligation.

Paper Forms

You may download and print the forms you need from our forms library.