Why use a tax API gateway?
A tax API gateway lets you integrate once and reach every Pakistan authority, absorbs authority-side changes so your code stays stable, and gives you idempotency, quota, normalized errors, logs, monitoring and multi-company management out of the box — work you would otherwise build and maintain yourself.
What you stop building
- Four provider adapters and their quirks
- Encrypted per-authority credential storage
- Idempotency, duplicate detection and retries
- Quota metering and overage billing
- Request logging and health monitoring
What you gain for customers
If you sell software to many merchants, a gateway lets you onboard each customer company and its branches with isolated credentials and quota, and give them a fiscal QR on every receipt — without a bespoke project per authority. See multi-branch integration.
The maintenance argument
Tax authorities change endpoints, tokens and rules. With a gateway, those changes are absorbed centrally. Without one, every change is your emergency.
Frequently asked questions
Is a gateway worth it for one authority?
Often yes, once you value idempotency, logs and not maintaining the adapter yourself — and essential the moment you add a second authority.
Can a gateway handle many customers?
Yes. TaxBridge is multi-tenant: many companies and branches, each isolated.
What if I outgrow it?
You keep a clean canonical integration, which is portable, and plans scale up to 10,000 invoices per month on the Custom plan.