Articles on: Sales Tax Autofile

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 Autofile if you are located in Missouri. We are working on supporting remote sellers to Missouri, please let us know if you are interested.

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: 05/24/2024

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