Montana Payroll Tax Requirements

There are 3 required tax items you need in order to get setup for payroll.

Withholding Account Number

New businesses can register online.

Unemployment Insurance Account Number and Tax Rate

New businesses can register online . You will receive your employer rate based on your industry. You can view this information online.

• You can find your Withholding Account Number online.

• You can find your Unemployment Insurance Account Number online.

• You can find your Tax Rate online.

• The Department of Revenue can be contacted at (406) 444-6937 or DORe-Services@mt.gov.

• The Department of Labor and Industry can be contacted at (406) 444-3834 or uieservices@my.gov.

Linking us as your third-party administrator ensures we are able to complete the quarterly filings and amendments (if applicable) in a timely manner.

We submit a request through the tax agency website to link to your account. The state sends an email with instructions regarding granting third-party account access. A confirmation number is supplied to complete the TPA link.

1. Access the MT Tap website.

2. Under Businesses, select Grant Third Party Account Access.

3. On the Select Your Account Type page, select Business. Then select Next.

4. On the Verification Information screen, enter your Account ID and the Confirmation Number provided by Toast Payroll. Select Next.

5. At the Confirmation page, confirm that you authorize us to have File and Pay access to your account. Select Submit to complete this process.