Automatic, real‑time U.S. sales tax at checkout — destination‑accurate rates from Sales Tax DataLINK.

Sales Tax DataLINK brings accurate, real-time U.S. sales tax calculation to your BigCommerce checkout. As shoppers enter their address, the app requests the correct destination-based rate from your Sales Tax DataLINK account and applies it instantly — no rate tables to build or maintain.

Why Sales Tax DataLINK

• Real-time rates at checkout — tax is calculated live from the customer's shipping destination, so the amount shown is the amount owed.

• Destination-accurate — The address is validated and rates are looked up by U.S. ZIP code (5- or 9-digit) using Sales Tax DataLINK's tax data.

• Applies tax correctly across the order — products, shipping, and handling, while honoring tax-exempt items and tax-inclusive pricing.

• Set it and forget it — no manual rate tables, no per-jurisdiction upkeep.

• Fast, simple setup — install, paste the API key we issue you, choose the states you collect in, and you're live.

How it works

1. Install the app and open it from Apps > My Apps.

2. Enter the Sales Tax DataLINK API key issued to your business. The app verifies it instantly.

3. Activate it under Store Setup > Tax and select the U.S. states you collect tax in.

4. At checkout, BigCommerce calls Sales Tax DataLINK for each order and displays the calculated tax.

Requirements

• An active Sales Tax DataLINK account and API key. Don't have one? Visit salestaxdatalink.com or contact us to get started.

• U.S. destinations. (The app calculates tax for U.S. shipping addresses.)

Support

Questions or help getting set up? Email

or visit salestaxdatalink.com/contact.