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Montana Payroll Guide

Montana Payroll Guide

Isabelle Talkington avatar
Written by Isabelle Talkington
Updated over a month ago

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

Requirement

Format

Agency

Withholding Account Number

0000000000 (10 digits + WTH)

UI Account Number

000 0000 (7 digits)

Total Unemployment Insurance Tax Rate

X.X%

How to register:

  • Withholding Account Number

  • 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.

How to locate these numbers if you’re already registered:

  • 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 [email protected].

  • The Department of Labor and Industry can be contacted at (406) 444-3834 or [email protected].

Third-Party Access (TPA)

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

Steps to grant TPA

We will submit a request through the tax agency website to link to your account. The state will send an email with instructions regarding granting third-party account access. A confirmation number will be 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.

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