Authenticate using Account ID and License Key

If your organization already uses other Avalara products, such as AvaTax or CertCapture, and has access to the signed-in area of the Tax Compliance Software - Avalara website, you can generate the bearer token required to authenticate to the Avalara 1099 & W-9 API using your Account ID and license key.

Note

If you already have a license key for integrating with other Avalara products, you can keep using it. However, if you generate a new license key through this process, it will automatically reset any key you created before.

Step 1: Sign in and generate a license key

Sign in to Tax Compliance Software - Avalara.
Go to Settings > License and API keys.
Select Generate new key.
Note your Account ID in the Account menu.

Step 2: Request a bearer token

Make a POST request to the Avalara Identity service using the client_credentials grant type:

curl -X POST 'https://identity.avalara.com/connect/token' \
   --header 'Content-Type: application/x-www-form-urlencoded' \
   --data-urlencode 'grant_type=client_credentials' \
   --data-urlencode 'client_id={{accountId}}' \
   --data-urlencode 'client_secret={{licenseKey}}'

This command sends a POST request to the Avalara Identity service with the required headers and data to authenticate and retrieve an access token. Replace {{accountId}} and {{licenseKey}} with your actual credentials.

Use the resulting bearer token to authenticate your API requests to the Avalara 1099 APIs.