Changelog

Versions are dates; a version never changes shape once published.

Version What

2026-09-06 First public version: keys, scopes, sandbox and live environments, calculations for CA/T1 (US/1120, GB/CT600 and NG/CIT previews were withdrawn on 2026-09-22 when TaxPio opened in Canada only), idempotency, cursor pagination, rate limits, sandbox scenarios, signed webhooks with the sandbox sink, usage metering, credits and 402, connected apps for accounting, ERP, ecommerce, payroll and payments records and documents, the developer console.

Version	What
`2026-09-06`	First public version: keys, scopes, sandbox and live environments, calculations for CA/T1 (US/1120, GB/CT600 and NG/CIT previews were withdrawn on 2026-09-22 when TaxPio opened in Canada only), idempotency, cursor pagination, rate limits, sandbox scenarios, signed webhooks with the sandbox sink, usage metering, credits and 402, connected apps for accounting, ERP, ecommerce, payroll and payments records and documents, the developer console.