Taxlyne Help Center
Guides for creating, signing, and transmitting e-invoices to FIRS with Taxlyne.
Welcome to the Taxlyne help center. Taxlyne creates, signs, and transmits your invoices to FIRS (Nigeria's Federal Inland Revenue Service).
Start here
- Invoice statuses — what each stage of your invoice means, from draft to cleared with FIRS, and what (if anything) you need to do.
Building an integration
If you are connecting your own system to Taxlyne rather than using the portal:
- API overview — how requests and responses are shaped, and where to start.
- Authentication — create an API key and send it correctly.
- Your first invoice — a working request, end to end.
- Filing with FIRS — the three calls that register an invoice.