How does a SaaS platform integrate a tax API?
A SaaS platform onboards each customer as a company in TaxBridge with its own encrypted credentials and quota, then files that customer’s invoices through the canonical API. One integration in your platform serves every tenant and every authority.
Multi-tenant flow
Tenant makes a sale
↓
Platform builds the invoice
↓
POST with tenant’s company context
↓
Route to authority
↓
Fiscal number + QR
↓
Update tenant’s record
Implementation steps
Onboard companies
Create a company per customer, each with isolated credentials and quota.
Scope every call
File with the correct company context so tenants never mix.
Offer authorities
Let customers subscribe to the authorities they need.
Surface logs
Expose per-tenant status and logs in your product.
Isolation and billing
Each tenant’s credentials are encrypted and isolated, and quota is per company. This maps cleanly onto per-customer billing in your SaaS. See multi-branch and security.
Frequently asked questions
Can I manage many customer companies?
Yes — TaxBridge is multi-tenant; manage many companies and branches under one account.
Are tenants isolated?
Yes — every query is scoped to the company from the key/token, and credentials are encrypted per company.
How does billing map?
Quota is per company subscription, which lines up with per-customer billing in your platform.