AvaTax SOAP API

The AvaTax SOAP API exposes the most commonly used available for interacting with the AvaTax service, allowing calculation of tax, modification of documents, and validation of addresses. If you're unsure of which API to use, a full comparison of the differences between the functionality provided by our REST and SOAP interfaces is documented here. The REST API reference is also available.

validateAddress

Validate an Address

Normalizes a single US or Canadian address, providing a non-ambiguous USPS address match. This documentation is for the SOAP version of AvaTax. This method is also available in REST as ResolveAddress. SOAP users may wish to download the AvaTax SOAP WSDL file for all API definitions.

validateAddress

validateAddress

POSThttps://development.avalara.net/Address/AddressSvc.asmx?Validate

SAMPLE

PARAMETERS

Request

Curl

cURL

1curl 'https://development.avalara.net/Address/AddressSvc.asmx?Validate=null' \
2-H 'SOAPAction: {SOAPAction}' \
3-H 'Authorization: Basic <Base64-encoded credentials>' \
4-H 'Content-Type: application/json' \
5-d '{"Header":{"Security":{"UsernameToken":{"Account":1234567890,"LicenseKey":"A1B2C3D4E5F6G7H8"},"SOAP-ENV:actor":"http://schemas.xmlsoap.org/soap/actor/next"},"Profile":{}},"Body":{}}'

Response

HEADER

BODY

1{}

SAMPLE

PARAMETERS