Enabling Third-Party Access in Missouri

This help article walks you through the steps to grant third-party access to your Missouri sales tax account. Providing these permissions allows Kintsugi to retrieve your registration details and complete the registration import setup within the app.

Step 1: Access your MyTax Account

1. Go to MyTax.mo.

2. Enter your User ID and password.

3. Click “Sign In.”

Step 2: Manage Authorized Prepares

Once logged in, under the Profile information drop-down at the top of the page, click "Manage Authorized Preparers."

Step 3: Click the “Add New Authorized Preparer” button to proceed

Step 4: Fill the New Authorized Preparer Page 

On the New Authorized Preparer page, enter the following:

• Username: KintsugiAI

• Confirmation Number: 9901008991186

Step 5: Fill the User Details

1. On the User Details page, check the box to the left of the taxpayer's name. 

2. For the start date, enter January 1st, 20XX (the year we will begin filing for them).

3. Then, click the "Taxpayer Functions" button.

Step 6: Select Taxpayer Functions

Under Taxpayer Functions, check the box next to each of the following, then click OK.

• Execute No Tax Due Request

• File Returns for All Taxes

• General Inquiry Sales and Use Tax (found on 2nd page)

• Make Payments for All Taxes (found on 2nd page)

You will receive a popup, "Changes will take effect after selecting Save on the User Details Page," and select "Ok" again.

Step 7: Click the "Tax Type Authorization" button

Step 8: Fill the Tax Type Authorization Page

1. On the Tax Type Authorization page, select the box next to "Sales Tax or Vendors Use."

2. Enter January 1st of the year Kintsugi will begin filing for you as the start date.

3. Click "Tax Type Functions."

Step 9: Select Tax Type Functions

Under Tax Type Functions, check the box next to each of the following, then click OK:

• File Returns

• Make Payments

• Register New Location

• Upload Tax Documents in Bulk

• View Tax Type Specific Correspondence (found on 2nd page)

Step 10: Continue with Tax Type Authorization page

Upon returning to the Tax Type Authorizations page, select "Ok" in the bottom-right corner. You will receive a pop-up that reads, "Changes will take effect after selecting Save on the User Details Page," and select "Ok" again.

Step 11: On the User Details page, select "Save" to continue

Step 12: Confirm All Actions

Lastly, on the confirmation page, confirm that all eight functions listed above have been assigned, then press the  "Confirm" button in the bottom-right corner.

Need Help?

For further concerns, we're always here to help. If you can't find the answer you're looking for, please reach out to us using the chat bubble in the bottom-right corner.