Pressero has an integrated with Avalara Tax Service (AvaTax). You will also need an account with Avalara.
To set the integration:
1) Set up your account with Avalara.
2) Open a ticket on the support portal
and send us the following information:
a. Avalara account number, license key, and company code
b. which site(s) should use the integration.
c. Avalara will issue both "test" and "live" credentials. Please provide your test credentials first. When you are ready to go live, then send your live credentials.
We will configure the integration. Once configured, you will see no difference in your Pressero admin area. Instead your site will return tax rates via the integration