Missouri Third Party Administrator

Third Party Administration (TPA) Access

Missouri Withholding Account 

1. Log into or create your MyTax Missouri account. 
2. Select Profile Information in the header and choose Manage Authorized Preparers. 
3. On the right side of the page above the list, select Add New Authorized Preparer. 
4. Enter Payroll Vault Franchising information: 
   1. User ID: pvtax 
   2. Registration Confirmation Number: 9901004457092 
5. Select Next. 
6. In the View column, select the appropriate business(es). 
7. Confirm the appropriate Taxpayer Name and ID/FEIN. 
8. In the Start Date field, enter the first day of the quarter (and year) you started with Payroll Vault Franchising Payroll. For example, 01/xx, 04/xx, 07/xx, or 10/xx. 
9. Select the Tax Type Authorizations button for Assignments. 
10. Select Employer Withholding Tax. Enter the same Effective Start Date you entered in step 8. 
11. Under Assigned Function, select Tax Type Functions. 
12. Select the following functions: 
    1. File Returns 
    2. Make Payments 
    3. Upload Tax Documents in Bulk 
13. Select OK, then select OK again, and finally select Save. 
14. Review information and select Confirm. 

Missouri Unemployment Account 

The tax agency requires a signed Power of Attorney (POA) form to authorize TPA access to its online system.

After your first payroll with Payroll Vault Franchising Proll, please verify that a POA is already on file in iSolved. If no POA has been uploaded, follow the steps below to create and obtain a prefilled POA form for your client.

Create the POA Package in iSolved

1. Log in to iSolved and navigate to the appropriate client/company.
2. Under Client Maintenance, select Taxes.
3. Select Company POA Package.
4. Select Missouri (MO) as the applicable state.
5. Click Create Package. The prefilled POA form will be generated and available in the History tab.
6. Navigate to the History tab and locate the POA package you created.
7. Select Batch Details, then select Batch Reports.
8. Click Go to open and view the prefilled Missouri UI POA form.
9. Provide the POA form to the client for review and signature.
10. Once the signed POA is received, upload the completed form to the appropriate location in iSolved.
11. Submit a Tax ticket to notify the Tax team that the signed Missouri UI POA has been uploaded and is ready for processing.

Important: Please ensure the signed POA is uploaded to iSolved and a Tax ticket is submitted so the Tax team can complete the TPA authorization process with the state agency.