Tunisian SMEs subject to VAT must issue many invoices through El Fatoora, the electronic invoicing platform operated by Tunisie TradeNet (TTN). An invoice is not legally complete until TTN validates it, assigns a unique reference, and returns a QR code which is why understanding TTN is now as important as understanding VAT rates themselves.
This guide explains what El Fatoora is, who the 2026 rules affect, how enrollment works, and what SMEs should expect from their invoicing software. It is practical information for operators and accountants not legal advice. Confirm your specific obligations with your commissaire aux comptes or DGI advisor.
What is El Fatoora and who runs TTN?
El Fatoora is Tunisia's national electronic invoicing system. Tunisie TradeNet (TTN) operates the platform and has managed trade dematerialization for decades. Under a clearance model, you transmit invoice data to TTN before or as you issue the invoice; TTN validates structure and content, then registers the document. Only after that step is the e-invoice considered issued under the framework described in official compliance guides and finance-law summaries.
Invoices must follow the Tunisian Electronic Invoice Format (TEIF), an XML schema that includes structured fields, a digital signature from an accredited certificate provider, and the metadata TTN needs for tax control. TTN stores validated invoices and returns identifiers your customer and auditor can trace.
Who must use TTN in 2026?
Mandatory e-invoicing started with public-sector and selected B2B sectors years ago. Finance Law 2026 (Article 53, as summarized by Tunisian fiscal commentators) extended the obligation to VAT-registered service providers from 1 January 2026 consulting, IT, agencies, professional services, and similar entities that were previously outside the first waves.
- VAT-registered businesses issuing invoices that fall inside the mandated scope
- Service providers newly covered from 2026 unless explicitly exempt by regulation
- Companies already on El Fatoora for goods or large-taxpayer phases same platform, broader coverage
- Businesses working with accountants who require TEIF-ready exports for declaration
Revenue thresholds and phase timelines have applied differently to large taxpayers versus smaller PMEs. If you are unsure whether your SARL or SUARL is in scope today, treat enrollment as urgent and document every step authorities have referenced good-faith adaptation periods for newly obligated companies, but the underlying obligation remains.
How enrollment and certificates work
- Register on the El Fatoora portal
Create your company enrollment via adhesion.elfatoora.tn (official TTN onboarding portal). Keep confirmation receipts they demonstrate good-faith progress if you are still implementing.
- Obtain a digital signing certificate
TEIF invoices require a certificate from an accredited provider such as TUNTRUST. Plan lead time; certificate issuance is a common bottleneck for SMEs.
- Choose an integration mode
Low volume: TTN web interface or file import. Higher volume: API or SFTP integration from your ERP or invoicing software. Most growing PMEs outgrow manual entry quickly.
- Declare enrollment to DGI
After activation, complete fiscal enrollment steps with the Direction Générale des Impôts as required your accountant typically handles this declaration.
- Test before cutover
Run test invoices in a controlled period. Validate QR codes, PDF copies marked as copies where required, and TEJ reporting alignment with your accountant.
What changes in day-to-day invoicing?
Paper or PDF invoices you email without TTN validation are no longer sufficient for in-scope transactions. Your workflow becomes: create invoice in software → generate TEIF → sign → submit to TTN → wait for clearance → deliver customer copy with official reference and QR. Failures at any step block legal issuance.
Storage rules also shift: TTN archives validated e-invoices, reducing some paper burden, but you still need internal audit trails, export for TEJ where applicable, and reconciliation with bank and cash receipts. Spreadsheets alone break down once clearance errors, partial payments, and credit notes multiply.
Penalties and good-faith transition
Finance Law 2025 introduced explicit penalty ranges for e-invoicing violations, with stricter bands for format or signature failures. Commentators cite per-invoice fines and wider audit risk for repeated non-compliance. In early 2026, DGI communications (including references to Note Commune 02-2026 in industry write-ups) describe tolerance for companies actively enrolling but tolerance is not exemption. Start registration, certificate purchase, and software selection now.
How Hesabi fits TTN-ready SME workflows
Hesabi targets Tunisian PME operational finance: invoicing, TEJ-oriented reporting, audit trails, and accountant collaboration in one system designed for local rules not a generic ERP bolt-on. We are Tunisia-only today; that focus lets us prioritize DGI and TTN-aligned workflows rather than pretending one product fits every Maghreb regime.
If you are evaluating software, read our guide on choosing invoicing software for a Tunisian PME and our piece on TEJ reporting obligations. Pair software selection with accountant review before your first production TTN submission.
Is El Fatoora the same as TTN?
El Fatoora is the e-invoicing platform. Tunisie TradeNet (TTN) is the operator that runs it, validates TEIF submissions, and stores cleared invoices.
Can I still send a PDF invoice by email?
Customer delivery can include PDF or printouts, often marked as copies of the cleared e-invoice. The legally issued document is the TTN-validated e-invoice with its official reference not an uncertified PDF alone.
Do all Tunisian SMEs need a digital certificate?
TEIF submissions require signing with an accredited digital certificate in standard integration paths. Confirm certificate type and provider with TTN documentation and your accountant.
Does Hesabi work outside Tunisia?
No. Hesabi is available for Tunisia-only operations today. We are explicit about that limit so customers do not assume cross-border fiscal coverage we do not provide.
Where should I start this week?
Open enrollment on adhesion.elfatoora.tn, contact your accountant, and map your monthly invoice volume to manual versus integrated TTN submission before buying tools.
