The short answer
If you run a VAT-liable service business in Tunisia — law firm, accounting practice, medical office, architecture or engineering studio, consulting, IT services, hotel, restaurant, agency — electronic invoicing through the El Fatoora platform (Tunisie TradeNet) has been legally mandatory since January 1, 2026, under Article 53 of the 2026 Finance Law. There is no grace period: penalties include fines, tax audits, and exclusion from public tenders. Roughly 380,000 businesses — about 85% of Tunisia’s service economy — are affected.
What the law actually requires
A compliant invoice is not a PDF sent by email. It must be:
- Generated in TEIF format — the Tunisian Electronic Invoice Format, an XML structure based on the international UBL 2.1 standard with local specifics defined by the INNORPI TTN 2026 norm: mandatory fields, a unique invoice identifier, and a QR code.
- Digitally signed with a qualified electronic certificate issued by ANCE (TunTrust) — delivered as a USB cryptographic token, roughly 350 TND excluding tax, valid two years.
- Submitted to El Fatoora (Tunisie TradeNet’s platform), which validates and registers the invoice before it has legal value.
The two ways to comply
1. Manual portal entry. You can type invoices directly into the El Fatoora web portal. Workable if you issue a handful of invoices a month; painful and error-prone beyond that.
2. Software integration. Your invoicing software generates the TEIF XML, signs it, and submits it to TTN automatically — you keep your normal workflow and the compliance happens underneath. This is the only realistic path for businesses invoicing weekly or daily, and for accountants managing many clients.
What to do this month if you’re not compliant yet
- Get your ANCE/TunTrust certificate — the lead time on the physical token is the slowest step, so start it first.
- Open your El Fatoora account with Tunisie TradeNet.
- Decide portal vs. software based on your invoice volume — and if your current invoicing tool can’t produce TEIF, that’s the gap to close now, not after a tax control.
The honest caveat
If you issue two or three invoices a month, the portal is fine and you don’t need to buy anything beyond the certificate. The businesses at real risk are the ones invoicing at volume on tools that were never built for Tunisian compliance — foreign SaaS products won’t add TEIF support for a market this size.
Where we fit
At Axynoxia we build software for exactly this kind of regulatory-meets-operational problem — we’re a Tunisian software company, and we’re actively building El Fatoora/TEIF compliance into our own invoicing platform, ProInvoice. If your business or your clients need to get compliant without changing how you work, book a free 15-minute call and we’ll tell you honestly whether the portal is enough for you or whether you need real integration.