How to Install Sidr Tax and set up Multi Store Connections

What you need to install Sidr Tax

• A Shopify account
• Payment and subscription plan selected (Sidr Tax service invoices are charged through the payment method on file)
• Logged into the Shopify account you want to connect to Sidr Tax

Install Sidr App

Once you have set up your account and store/stores you will be able to go to the search filter at the top of your screen and search by "app" and type in "Sidr Tax".

On the following page Sidr Tax should be one of the top results.

Select the Application and on the following page click on Install.

You will be met with the following prompts and click on install again.

Create your Sidr login

Once you have completed all the prompts, you will be brought to our app. You can now create a login by typing in your email.

After you click Continue with email, the Sidr Tax app shows Please check your mailbox for an activation/login link.

You will receive an email from Sidr, with the login link in it. If you don't receive it after a minute, please also check your spam folders. Please click the button that says Continue to Sidr Tax.

Activate your subscription

You will be redirected to the Sidr Tax app. The next step is activating a subscription. Sidr Tax app charges are process by Shopify, so you will see the details in your monthly Shopify bill.

Please choose the subscription plan that's suitable for your store.

• Premium: For large ecommerce stores, and typically with more than 10 Nexus states.
• Standard: For medium ecommerce stores, with one or more Nexus states.
• Free: For small ecommerce stores, not yet with any Nexus states but need to monitor their potential tax obligations.

Once you finish, you will see the confetti indicating that the plan has been activated.

You should now be able to access our app. Depending on the amount of historical transactions, it can take up to 2 hours to fully sync your data.

For a rundown of the Sidr Tax App please refer to our Account Overview help page.

How to Set up Multiple store connections

If your business operates multiple stores under the same legal entity, you can manage them all within a single Sidr Tax account. However, if your stores belong to different business entities, you must create a separate Sidr Tax account for each.

1. Select the store: In your Shopify admin, switch to the relevant store you wish to add.
2. Install the app: Follow the standard installation steps for Sidr Tax. The store will automatically connect to your existing account.
3. View your data: On the Store Tax Summary page, you can use the store filter to view data for a specific location or keep it on the default "All Stores" setting for a consolidated overview.

Important: Multiple Legal Entities

If your stores are tied to different legal entities, each entity requires its own unique login email and a separate installation of Sidr Tax.

If you have accidentally linked stores from different legal entities to the same account, please contact us. Provide us with the details of which store should be assigned to which email address, and we will help you separate the accounts.

Updated on: 04/29/2026