CCH SureTax Developer Portal
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CCH SureTax Developer Portal
Help
Your complete resource for retail and e-commerce tax calculation integration
The General Merchandise API provides sales tax calculation for retail and e-commerce transactions — covering tangible personal property, digital goods, and mixed transactions. Use this guide to integrate merchandise-specific tax logic into your point-of-sale and online store systems.
Get your first retail tax calculation running in minutes. Covers authentication, basic requests, and response handling.
Full endpoint documentation with request/response schemas, field definitions, enumerations, and code samples.
Real-world scenarios including point-of-sale calculations, multi-state e-commerce, tax-exempt resale, marketplace facilitator compliance, and return credit processing.