Montana TPA needed

Required for OnPay to pay on your behalf

Montana Department of Labor

1. Download the Montana TPA
2. Complete the "Employer" information section at the top 
3. Add the signature of the Employer/Taxpayer
4. Provide OnPay with a copy of your completed form

Download Montana TPA

Reminder
OnPay also needs you to enter your state tax IDs and tax rates in order to properly calculate and remit all state taxes. See all Montana tax guides→

Forms you may need to complete upon request

You may be asked to complete one or all of these authorization forms in order for OnPay to communicate with tax offices.

Montana Department of Revenue

1. Download the Montana POA
2. Complete the following information in Part I:
   • Section 1: Taxpayer Information
   • Section 6: Signature of Taxpayer
3. Provide OnPay with a copy of your completed form

Download Montana POA

Providing information & completed forms

Submit a request with account information, completed forms

To provide the information and/or completed forms detailed in this article, click Submit a request, and log in using your OnPay credentials. The "Submit a request" form is the most secure way to transmit your company information and documents to us. 

Submit a request

Note: You will need your OnPay login credentials.

You can also submit a request anytime you need help

Requests can also be submitted by clicking the link at the bottom of any help article, or by starting a chat when logged into OnPay. Submitting a support request is the fastest and most secure way to get help with tax matters, technical advice, or any other support you may need from OnPay. 

All downloadable forms

• Montana TPA 200 KB
• Montana POA 700 KB