How to setup Autofile for Missouri
This is a state-specific guide. Learn about setting up Autofile in general here.
Just finished registration? Please read the registration guide first.
We currently only support Missouri Remote Seller Autofile if you are registered by us.
Login to Missouri MyTax, and find your Sales Tax ID below.
Missouri MyTax requires merchants to grant access to third-parties. Please grant access to Sidr Tax by following the steps below.
Fill in the Sidr Tax third-party account information:
User ID: sidrtax
Registration Confirmation Number: 9901006728973
Click "Next".
Select the "View" check box on the left.
Put a early enough start date, for example, 01/01/2020.
Select Assignments: "Full Access".
Click "Save".
Review the Authorized Tax Type Functions and click "Confirm".
We will receive a notification once you grant us access and will review your account. After the review, we will activate your Missouri Autofile!
Just finished registration? Please read the registration guide first.
We currently only support Missouri Remote Seller Autofile if you are registered by us.
Find and Provide Sales Tax ID
Login to Missouri MyTax, and find your Sales Tax ID below.
Grant access to Missouri MyTax
Missouri MyTax requires merchants to grant access to third-parties. Please grant access to Sidr Tax by following the steps below.
Fill in the Sidr Tax third-party account information:
User ID: sidrtax
Registration Confirmation Number: 9901006728973
Click "Next".
Select the "View" check box on the left.
Put a early enough start date, for example, 01/01/2020.
Select Assignments: "Full Access".
Click "Save".
Review the Authorized Tax Type Functions and click "Confirm".
We will receive a notification once you grant us access and will review your account. After the review, we will activate your Missouri Autofile!
Updated on: 08/16/2024
Thank you!