Skip to main content

​
Overview

Connect Zamp’s Tax Engine into your platform, and automatically calculate tax during transaction creation.

​
Endpoints Used

Embedding Zamp in your platform is a powerful way to ensure the businesses using your platform, or your customers are receiving accurate sales tax calculations. Offer Zamp natively in your own way, but below are a couple workflows for how calculations can be embedded directly in your platform:

​
ECommerce Web Store Tax Estimation

1

Customer Builds Their Cart

An order is built by adding items to their cart and providing their shipping information. Taxability is controlled via already mapped Zamp Product Tax Codes, and will be referenced when making a calculation.
2

Request for Calculation is Made to Zamp

Once the customer has populated a shipping destination, your integration makes a POST /calculations call to return a Zamp tax calculation. 
3

Customer Sees Their Tax Due

The tax due provided by Zamp should be displayed to the customer before they enter payment.Zamp provides a jurisdiction-level breakdown of tax due in the response. It is up to you the level of granularity you provide customers. 
4

Customer Checks Out and Pays

Once the customer is comfortable with their order and they complete their order.

​
Sales Invoice Tax Estimation

1

User Generates a Sales Invoice in the Platform

As they’ve likely done hundreds or thousands of times before, a user would generate an invoice with line items, shipping information, exemption information if applicable, etc.
2

User Calculates Tax via a Button

Before saving the invoice, the user should be able to check what tax liability would be for the transaction. A common approach is the existence of a button that can be clicked that would send information to Zamp via a POST /calculations call to return a tax calculation. 
3

User Reviews Tax Liability

Since Zamp returns all jurisdiction-level information for tax due, you can provide a full breakdown to the user, all before they save the invoice.