Overview: When hiring employees in Montana, you must register for State Withholding Income Tax through the Department of Revenue and State Unemployment Insurance (UI) Tax through the Department of Labor & Industry. Each agency requires its own registration, but both can be managed online through Montana TAP and UIServices for Employers.
Important! This guide does not constitute legal or tax advice. You can consult a CPA or attorney for official guidance.
Taxes You Must Register For:
Registration Process
Registration Steps
Step 1: Register for Withholding Account ID
Go to Montana TAP
Click Register a New Tax Account
Select Register and review the information required
Complete all registration steps
Print the confirmation page upon submission
You will receive a letter from the Montana Department of Revenue that includes your Account ID (upper-right corner of the letter)
Step 2: Create Montana TAP Online Account
After receiving your Account ID, go back to Montana TAP
Click New user – Set up online access
Select My Business Account
Enter your Account ID from the letter or call (406) 444-6900 to retrieve it
Complete identity verification
Create a username and password
You can also find your Account ID on any prior Montana DOR correspondence.
Update your Buddy Punch account with your Montana Withholding Account ID to ensure your tax filings are accurate.
Step 3: Register for UI Employer Account Number (EAN)
Go to UIServices for Employers
Click Register a New UI Account
Review the required info and click Next
Select Employer and proceed through the application
Step 4: Create a UIServices Online Account
Return to UIServices
Under Log In, click Sign Up Here
Select Employer and your business role
Enter your FEIN and Montana UI Employer Account Number
Create your username and password
Update your Buddy Punch account with your Montana UI Employer Account Number (EAN) to ensure proper unemployment tax processing.
Third-Party Authorization for Check
To enable filing and paying on your behalf for UI:
Complete the Third Party Authorization Form (UI006)
This form is part of the employer onboarding process
Need Help?
Withholding (DOR): (406) 444-6900
Unemployment (DLI): (406) 444-3834