Integrate Galvix & BigCommerce

Connecting your BigCommerce store to Galvix automates sales tax calculation at checkout and supports with automating sales tax compliance.

Once connected, Galvix securely imports transaction, product and customer data from your BigCommerce store. Using this information, Galvix can:

• Calculate accurate taxes: apply the correct jurisdiction-level sales tax to every BigCommerce order in real time.
• Prepare draft returns: generate sales tax return drafts from your synced transactions.
• Track nexus: monitor sales across states and alert you as economic nexus thresholds are approached, met or exceeded.

This guide walks you through the setup in three parts:

1. Install the Galvix Sales Tax app from the BigCommerce App Marketplace
2. Connect your store to Galvix and activate the integration
3. Set Galvix as the tax provider in BigCommerce

How the integration works

Once your BigCommerce store is connected to Galvix, here is what happens:

1. Authorization: you install the Galvix Sales Tax app and grant it read access to your store's customers, orders, products and store settings. Galvix cannot access your password.
2. Data sync: Galvix imports transactions from the import start date you choose, then keeps syncing new orders.
3. Tax determination: BigCommerce sends each U.S. checkout to Galvix, which returns the correct sales tax for the shopper's address, registration status, product taxability and jurisdiction rules.

Before you begin

Make sure you have the following ready:

• Admin access to your BigCommerce store's control panel
• An active Galvix account
• The date from which you want Galvix to import transactions

Step-by-step setup

Part 1: Install the Galvix Sales Tax app

Step 1. Log in to your BigCommerce admin dashboard.

Step 2. In the left menu, go to Apps → App marketplace, then click Discover apps in the App Marketplace.

Step 3. Search for Galvix Sales Tax and open the app listing.

Step 4. Review the app details and permissions, then click Install.

Step 5. BigCommerce asks you to confirm the access Galvix needs. Click Confirm.

Galvix can view customers, orders, products and store settings.

Part 2: Connect your store to Galvix

Step 6. After installation, BigCommerce opens the Galvix Sales Tax app automatically (you can also find it under Apps in the left menu). Click Connect.

Step 7. Galvix opens in a new tab. Sign in with your Galvix email and password.

Already signed in to Galvix? This step is skipped and you go straight to the Integrations page.

Step 8. After signing in, you land on Settings → Integrations in Galvix. A new Bigcommerce entry appears with the status Setup Pending.

Step 9. Click the ⋮ (three-dot) menu on the BigCommerce row and select Edit.

Step 10. In the Edit Integration panel, complete the connection settings:

Changing the import start date later does not delete transactions already imported into Galvix.

Step 11. Click Save. If the details are correct, the integration status changes to Active.

Step 12. Return to the BigCommerce tab and refresh the page. The app now shows Connected to followed by your Galvix account name.

Part 3: Set Galvix as your tax provider in BigCommerce

This final part tells BigCommerce to use Galvix for tax calculation at checkout.

Step 13. In BigCommerce, go to Settings and click Tax.

Step 14. Under Configured tax services, Galvix appears as Installed. Click Edit next to it.

Step 15. Under Provider targeting, select One or more countries and tick United States. Then click Test connection.

Step 16. Confirm you see the message Test connection: Successful, your tax provider is connected. Then click Save at the bottom of the page.

Step 17. A dialog asks you to confirm the provider settings. Click Ok.

Step 18. BigCommerce confirms that your tax provider settings were updated. Galvix will now calculate sales tax on your U.S. orders.

Shoppers outside the United States are taxed using your BigCommerce basic tax rules.

After connecting

Your integration is complete once its status in Galvix shows Active and the BigCommerce test connection succeeds. Review your synced data under the Transactions and Products tabs in Galvix.

Othe Integration statuses

Troubleshooting

If test connection fails in BigCommerce: confirm the Galvix integration is Active, then click Test connection again.

Still stuck? Contact us at support@galvix.com and we'll help resolve it.