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Sales Tax API Reference

Customs Duty API Reference

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Get detailed information about a specific customer, including exemption certificates.

Get customer

ISO 3166 2-letter country code. Ex: US, IN, GB.

The unique identifier for the corporation associated with this customer.

The unique identifier of the customer associated with this exemption certificate.

ISO 8601 formatted date string indicating the date when this exemption certificate will expire. This is an optional field as some certificates might be valid indefinitely.

Identifier of the file to use as the exemption certificate for this customer. Returned from the `POST /files` endpoint once the file is uploaded.

Unique identifier for the exemption certificate

ISO 8601 formatted string indicating the date when this exemption certificate was issued.

A string representing the jurisdiction: either a 2-letter state code (ISO 3166-2 suffix), 'SST', or 'MTC', depending on the exemption certificate details.

Type of the exemption certificate. Request additional types from the Commenda team as required.

Determines whether the certificate is valid for use or not. If the certificate is `INVALID`, the `POST /calculate` endpoint won't use it for exemptions.

Every exemption certificate needs to be validated by Commenda before they can be used for exempting transactions. This status indicates whether Commenda has verified the authenticity of this exemption certificate.

bearerAuth

Welcome to Commenda's API Documentation! Learn how to use our API to manage your global tax workflows.

Introduction

Learn how to use the Commenda API to manage your taxes.

Sales Tax Transactions

Nexus

Exemptions

Understand how Commenda's Sales Tax API manages corporations for both single and multi-entity implementations.

Corporations

Get all corporations associated with a sales tax partner.

List corporations

Get corporation

Create a new corporation for a sales tax partner.

Create corporation

Update corporation

Delete corporation

Calculates the tax amount for a given transaction.

Tax Calculations

Calculate tax

Record transactions after they occur to remit and file the correct amount.

Tax Transactions

Submit a completed transaction for processing and filing

Create a transaction

Retrieve one transaction by its identifier

Get transaction

List all transactions that match this query

List transactions

Delete transaction

Mark a transaction as refunded to receive credit against a future tax liability.

Refund Transactions

Create a refund

Utility for sellers to bulk upload transactions.

Bulk Transactions

Upload bulk transactions

Get nexus status for one seller for all US states

Get nexus

A system for sellers to manage their tax registrations, enabling accurate calculations and automated filing.

Tax Registrations

Allows customers to inform the system about states where they are already registered for sales tax.

Create registration

Get registration

Fetches all sales tax registrations associated with a specific corporation.

List registrations

Allows customers to provide additional information about states where they are already registered for sales tax.

Update registration

Allows customers to remove a sales tax registration with `validation_status` in `PENDING`, `INVALID`, or `VALIDATION_IN_PROGRESS` states. Customers should reach out directly to Commenda for registrations in `VALID` state.

Delete registration

When all necessary details are provided and a seller is ready to start filing in a state, call this endpoint to request that the Commenda team onboard your sales tax registration for filing.

Request validation

Request new sales & use tax registrations for a seller in a particular state.

New Registrations

Get required information for new registrations

Submit required information for new registrations

List state and local sales tax filings for a corporation, filtered by query.

List filings

Get one filing

Manage products and their tax codes for a corporation.

Products

Create product

Get product

List products

Update product

Delete product

Upload bulk products

Manage customers and their exemption certificates.

Customers

Create a customer to track their exemption certificates and default values for their addresses.

Create customer

List customers associated with a corporation.

List customers

Update a customer, including their addresses and exemption certificates.

Update customer

Delete customer

Manage exemption certificates for a customer.

Exemption Certificates

Create an exemption certificate for a customer

Create exemption certificate

Get a specific exemption certificate by id.

Get exemption certificate

Get a list of all exemption certificates.

List exemption certificates

Delete an exemption certificate. This does not delete the associated file.

Delete exemption certificate

Files

Create files

List files

Retrieve one file by its id, along with a signed URL to download it

Get file

Delete file

Receive real-time notifications about system events.

Webhooks

Topics and Events

Create webhook

Get webhook

Get a list of all webhooks registered with Commenda.

List webhook

Update webhook

Delete webhook

Test webhook

Calculates the customs duty rate for a given shipment.

Sales Tax API

Core Concepts

Corporations

Calculate

Transactions

Nexus

Registrations

Filings

Products

Customers

Exemption Certificates

Files

Webhooks

Get customer

Authorizations

Path Parameters

Response