API Documentation

Use the Zamp API to calculate taxes on transactions and commit them for filing.

Getting started

Your account is pre-configured to calculate taxes based your specific sales tax situation. To get started with the Zamp API, you'll need an API token which can be provided by your Zamp account manager.

Guides

Authentication

Learn how to authenticate your API requests with Zamp.

Pagination

Understand how to work with paginated responses.

Tax Codes

Find the right taxability rules to apply to your products.

Errors

Read about the different types of errors returned by the API.

Calculations

Learn about how to calculate your tax liability on transactions in real-time.

Transactions

Learn about the transaction model and how to create, retrieve, update, delete, and list transactions.