Database Interface

Recommended for experienced coders, developers and IT professionals

Database structure

The Database Interface connection will allow your eCommerce platform or SaaS package to retrieve real-time sales and use tax rates while instantly validating addresses as you need them, saving you time, and even more importantly, saving your company money. The Database Interface data updates behind the scenes every month so your programmers can “set it and forget it” and you can concentrate on your business.

Secure yet versatile, Zip2Tax’s API is the recommended connection method. The API is available at ZIP code, ZIP+4 and SpotOn levels and supports both sales and use tax rates. Zip2Tax will continue to support several legacy direct connect and passing request variables variable connections, however these methods do not allow for ZIP+4, SpotOn or use tax queries.

On the following pages we describe these methods as well as give you working samples to program with. When experimenting with the programming samples, keep in mind that the sample username and password restrict the lookup queries to a ZIP code range from between 90001 and 90999. After you subscribe to one of our services or request a free trial account, simply replace the sample username and password with those issued to you to gain full access.

.CSV tax tables: We also include in this section a page showing how to download our .CSV tax tables via an HTTP request . This is not related to the Database Interface subscription but is included in this section since it involves programing skills to accomplish.


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Sample ZIP Code Range

In the sample ZIP code range (90001 - 90999), the following ZIP codes contain multiple tax rates; which can be used to test the return of multiple rows:

  • 90304
  • 90601
  • 90631
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