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Sales Tax API Reference

Customs Duty API Reference

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

Create registration

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

The legal name of the entity being registered.

2-letter code for each state. Suffix of the ISO 3166-2 code. Ex: CA, NY, TX. This can't be changed once set.

The unique identifier of the corporation associated with this registration.

The unique identifier for the registration.

ISO 8601 date only string, identifying the date when the state registration occurred.

Merchant's password for the state sales tax portal.

Once a merchant is registered in a state for sales tax, they need to pay the collected tax to the state government. This payment happens at a fixed interval. The interval is generally decided by the state government and differ from state to state as well as for each merchant.

Some sales tax state portal require a pin to access them. If the state requires it, this will need to be passed before validating this registration.

The unique identifier assigned to the merchant by the state government during registration.

Merchant's username for the state sales tax portal.

Some state like Texas provides a webfile number that is required by Commenda to perform accurate filings.

Indicates whether Commenda is automatically filing taxes for this tax registration.

Reflects whether the registration is active and the business is operating in a given State.

Reflects the current stage of the registration process.

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

Reflects whether Commenda has validated the seller's registration details.

bearerAuth

Add existing sales tax registration

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

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

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

Get customer

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

Create registration

Authorizations

Body

Response