TierSafe

Reliable customer and supplier data

Check your third parties before an error disrupts your business.

TierSafe analyses, fixes and secures your customer and supplier data (SIREN, SIRET, VAT number, address, IBAN) so you can approach the 2026 e-invoicing reform with a reliable, ready-to-use file.

Request a demo See how it works
  • CSV and Excel
  • Instantly readable result
  • Human support available

Issues handled

Data errors become visible before they disrupt your operations.

  • Missing SIRET
  • Incorrect address
  • Duplicate detected
  • Invalid IBAN
  • Closed establishment

Plans

Credits, not a subscription.

One credit checks one record. Buy the volume you need, when you need it.

No commitment: create an account, your first import is free and you discover your invoice-rejection rate. The detail unlocks with credits.

Credit tiers, prices excluding VAT
Tier Price Credits
Découverte 20 € excl. VAT 100
Pro 50 € excl. VAT 450
Max 100 € excl. VAT 1 000
Beyond 1,000 from 109 € excl. VAT 1 100 to 50 000 records, in steps of 100
Enterprise On quote 1,000+

Credits never expire, and a failed run is credited back to you.

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How it works

Import, analyse, fix, export.

  1. ImportCSV, XLS or XLSX.
  2. AnalyseSIREN, SIRET, VAT, addresses and IBAN.
  3. FixAutomatic suggestions and human review.
  4. ExportClean file and control report.

A self-service experience or a turnkey treatment.

Two distinct paths to stay in control or hand the analysis over to a TierSafe team.

Self-service mode

Import, column mapping, analysis, validation and export in self-service.

Turnkey mode

Setup by TierSafe, manual verification, fixing and final report.

XLSX Reliable file
Report100%Export ready
94/100

Final result

A clean file, a clear report, traceable checks.

TierSafe delivers a usable base, along with the suggested fixes, the remaining anomalies and the confidence level.

  • Directly reusable export
  • Check date and source visible
  • Understandable overall score

E-invoicing 2026

Valid customer data for electronic invoicing

From 2026, electronic invoicing becomes progressively mandatory between VAT-registered businesses in France. Introduced under the French Tax Code, it requires structured invoices and e-reporting to the tax authorities. The validity of your third-party data governs whether each invoice can be issued and received: it is the prerequisite that protects your revenue.

Who handles your invoices: PPF, PDP and Chorus Pro

The reform requires business-to-business invoices to pass through a dematerialisation platform: the Public Invoicing Portal (PPF) or a registered Partner Dematerialisation Platform (PDP). For public procurement, Chorus Pro remains the entry point. These platforms check the mandatory data before forwarding: a poorly identified party, and the invoice is refused.

A structured invoice with accurate mandatory details

An electronic invoice is not a plain PDF: it is a structured document (Factur-X, UBL or CII formats, EDI exchanges) that must carry accurate mandatory details. Legal name, SIREN and SIRET, intra-community VAT number, registered address, VAT rate and payment details (IBAN, BIC) must match official data. A single wrong field is enough to get the invoice rejected.

A rejection is a payment lost

A rejected invoice is not paid: delayed collection, strained cash flow, reminders, unpaid invoices and debt recovery. TierSafe automates the checking of your customer and supplier bases upstream of your invoicing software, ERP or accountant, whether you sell products or services. Identities matched against the SIRENE registry, VAT number checked, addresses normalised, bank details verified: you approach electronic invoicing with clean data, from sole traders and small businesses to large accounts.

Go further: Réforme de la facturation électronique : qui est concerné et quelles échéances ? · Pourquoi un SIREN, un numéro de TVA ou une adresse erronés bloquent une facture · PDP et annuaire de facturation : pourquoi vos données tiers doivent être justes

Verification sources

Every check relies on a trusted reference source

TierSafe cross-references your data with official registries (SIRENE, VIES, National Address Database), without sending it to a commercial third party.

SIRENE registry

SIREN/SIRET matching, establishment status and consistency key (Luhn).

EU VAT number

Verification of the French VAT number key computed from the SIREN.

National Address Database

Postal address normalisation and validation via the BAN registry.

Bank details

IBAN/BIC structure check and country/supplier consistency.

Target audiences

For organisations that want usable third-party data.

  • SMEs and mid-caps
  • Finance departments and accounting teams
  • Accounting firms
  • ERP integrators and software vendors
  • E-invoicing platforms

Frequently asked questions

You might be wondering

What is TierSafe?

TierSafe is a SaaS platform that analyses, corrects and validates your customer and supplier data (company name, SIREN/SIRET, VAT, address, bank details) to deliver a file you can use straight away.

Why validate my third-party data before September 2026?

Under the e-invoicing reform, an invoice can only be issued or received if the third party's data is correct. A wrong SIREN, VAT number or address blocks the invoice, and therefore payment. Cleaning your databases beforehand avoids these rejections.

Which data does TierSafe check?

Legal identity (company name, SIREN, SIRET) matched against the SIRENE registry, the intra-EU VAT number (VIES), the postal address (French National Address Database) and bank details (IBAN / BIC format).

How much does a check cost?

TierSafe runs on credits: 1 credit checks 1 record, with no subscription and no expiry date. When you sign up, your first import is free: you see your invoice-rejection rate, and the detail unlocks with credits.

Are my files safe?

Your files are used only for the check and deleted once the analysis is complete. Processing is hosted in France and no data is ever resold.

Does TierSafe replace Chorus Pro or an e-invoicing platform (PDP)?

No. TierSafe works upstream: it validates your third-party data before your invoices are sent via Chorus Pro (public sector), the Public Invoicing Portal (PPF) or a registered Partner Dematerialisation Platform (PDP). Valid data means fewer rejections at transmission.

What mandatory details must an electronic invoice contain?

Besides the invoice number and date, an electronic invoice must carry the legal name, SIREN or SIRET, the intra-community VAT number, the address and the applicable VAT rate. In structured formats (Factur-X, UBL, CII) these fields are checked automatically: TierSafe verifies they match official data.

Does TierSafe integrate with my invoicing software or accountant?

Yes. You import a simple CSV or Excel file exported from your invoicing software, ERP or CRM, or provided by your accounting firm. TierSafe returns a corrected file, ready to re-import, without changing your tools.

What happens if an invoice is rejected for invalid data?

A rejected invoice is not paid: it must be corrected and re-issued, which delays payment and strains cash flow, with extra reminders and debt collection. Validating your customer data upstream sharply reduces these rejections.

Does TierSafe detect duplicates and closed establishments?

Yes. Across your customer and supplier bases, TierSafe spots duplicates, closed or struck-off SIRETs, ceased businesses, outdated addresses and inconsistent bank details, all frequent causes of invoice rejection.

Resources

Understand electronic invoicing and validate your data

Our guides cover the reform, the checks (SIREN, SIRET, VAT, IBAN) and best practices for invoices that go through.

See all guides

See TierSafe working on your data

Request a demo: we show you what TierSafe finds in a customer or supplier file.

Request a demo