Commenda allows your team to manage your entire sales tax workflow via API, from registration to tax calculations, filings, and nexus tracking.

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API Capabilities

1. Sales Tax Calculation
  • Calculate accurate sales tax rates to charge for each transaction.
2. Transaction Management
  • Create new transactions to track tax liability.
  • Retrieve transaction details.
  • Update existing transactions.
  • Delete transactions.
3. Nexus Information
  • Track your progress towards economic nexus in each state.
4. State Tax Registration Management
  • Submit your existing registrations to Commenda.
  • Request a new state registration.
  • Retrieve existing registration details.
  • Update existing registrations.
5. Filing Information
  • Retrieve all filings completed by Commenda on your behalf.
6. Customer Information
  • Create and update customer profiles.
  • Submit customer exemption certificates.
7. Files
  • Upload a file to Commenda’s server.

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Authentication

We implement Bearer token authentication to secure our APIs. This method requires you to include a valid token in the Authorization header of each request. The format is as follows: 
"Authorization": "Bearer <your_token>"
Replace <your_token> with the actual token provided to you by Commenda. Request API keys from the Commenda team for both testing and production.