Preview estimated indirect taxes (VAT, GST, sales tax) for products before checkout.

Returns per-item details:

• jurisdiction, taxType, taxRate, taxPercent, taxPrice, and localized display amounts.

Send requests as one or more country/currency groups:

• U.S. groups: include zip at the group level to compute sales tax. If omitted, the response may return taxRate: 0 and taxPrice: 0. ZIP is only supported at the group level.
• Pricing:
  • Virtual/non-catalog items: pricing.price is required.
  • Catalog items: if pricing.price (or price) is provided, it overrides the catalog price for the preview.