Storefront ↔ Tax
Sales tax rules change by state, country, and product category — getting it wrong is expensive in both directions. younifyd connects BigCommerce and Avalara so tax is calculated correctly at checkout, every time, with a full record of every calculation.
Calculate real-time, jurisdiction-aware tax at checkout using live cart contents
Apply product-level tax codes automatically, including exemptions
Record every tax calculation for audit and reconciliation
Combine with promotions and shipping in the same unified checkout response
Add credentials for both — younifyd handles the request shape and auth for you.
Fetch cart contents from BigCommerce, send them to Avalara for calculation, and merge the result into one response your storefront calls.
Your storefront calls a single endpoint. Catalogue, tax, and promotions come back together — no separate round trips.
It gives you Avalara's jurisdiction-aware calculation engine inside your checkout flow, rather than relying on simplified built-in tax rules.
Yes — Stripe Tax, Vertex Tax, and Taxamo are all available connectors if you use a different tax provider.
Every calculation is recorded in your activity log with the request and response, so you can reconcile or audit later.
Free forever, no credit card required. Most teams have this live within a day.
