Galvix is your dedicated compliance team — handling setup, nexus monitoring, state registrations, monthly filing, and notices on your behalf.
Galvix Tax connects your WooCommerce store to Galvix to calculate sales tax in real time.
Important: This plugin requires a Galvix account and a Galvix API token. It sends cart and address data to Galvix's servers in order to calculate tax. Please read the "External services" section below before installing, so you know exactly what is transmitted and when.
What the Galvix service does
Multi-State Nexus
We continuously monitor economic and physical nexus exposure across all 50 states and flag new thresholds before they create an obligation.
State Registrations
We handle every state registration on your behalf — forms, portals, and credentials — so you're legally ready to file before your first return is due.
Product Taxability
We map every product in your catalog to the correct tax category for each state, and keep those mappings current as rules change.
Return Filing
We prepare every return, reconcile your transaction data, apply deductions, and file across all your states on the correct schedule — monthly, quarterly, or annual depending on the state.
Exemption Management
We collect, verify, and store exemption certificates from your exempt customers, and proactively follow up before they expire.
State Notices
We handle any notices or correspondence received from the states and shared by the customer.
How we're different
A compliance team. Not another tool to operate.
How plugin works
- A customer adds products to the cart and enters a destination address. Tax is calculated based on the provided address.
- On each totals recalculation, the plugin sends the destination address, the product IDs, the per line amounts, and the shipping amount to the Galvix Tax API.
- Galvix returns a total tax amount plus a per line item tax amount.
- The plugin applies each returned amount to the matching cart line item and updates the cart total.
- At checkout, the same amounts are written to the order's line items and saved to order meta under
_galvix_tax_data.
If a request fails or the API returns an error, the plugin logs it and makes no change to the totals. Whatever WooCommerce calculated from your own tax rate settings is what the customer sees.
Automatic installation
- In your WordPress admin, go to Plugins > Add New.
- Search for "Galvix Tax".
- Click Install Now, then Activate.
Manual installation
- Download the plugin ZIP file.
- Go to Plugins > Add New > Upload Plugin, choose the ZIP file, and click Install Now.
- Click Activate.
Alternatively, unzip the file and upload the
galvix-tax folder to
/wp-content/plugins/, then activate the plugin through the
Plugins menu.
Configuration
WooCommerce must be installed and active before this plugin can be activated.
- Go to WooCommerce > Galvix Tax.
- Enter your API Token. You can obtain one from your Galvix account.
- Click Test Connection to confirm the token works and that your server can reach the API.
- Tick Enable Galvix Tax.
- Click Save Settings.
Tax calculation stays off until
Enable Galvix Tax is ticked, so you can save and verify your token before anything changes for customers.