API and integrations
WeSaveTax exposes a REST API for invoices, buyers and payments, a partner embed integration, and Tally-compatible export. The full references live alongside this page.
REST API
The public API covers invoices, buyers and payments. Requests authenticate with a Bearer API key generated in the portal under Settings, and API access is available on the plans that include it.
The endpoint reference, request and response shapes and error codes are in the API documentation.
Partner embed
Partners can embed WeSaveTax inside their own product. The partner documentation covers onboarding, credentials, the JWT token format, embed contexts and session handling.
Tally export
On the plans that include it, vouchers can be exported as Tally-compatible XML so your existing Tally workflow continues unchanged.
Webhooks and exports
Invoices, customers and payments can be exported from the portal for use elsewhere, independently of the API.
Other documentation
Set up your billing profile, add your first customer and raise your first GST invoice in WeSaveTax.
Invoicing referenceInvoice fields, numbering, PDF themes, invoice languages, sharing and corrections in WeSaveTax.
Payments and collectionsRecording payments, part payments, automated reminders, aging reports and customer statements.
GST and returnsHow WeSaveTax applies GST, and the return data it produces â GSTR-1 export, GSTR-3B summary, e-invoicing and e-way bills.
Team and accessBilling profiles, inviting team members, role-based permissions and audit trails in WeSaveTax.