FRL·001Invoice · Free · no account
Free invoice generator
Fill in the form, your invoice takes shape alongside. UK, US and French invoices with the usual legal notes, saved as PDF from your browser. Check them before you send.
This device's memory is not available (private browsing or full storage): the tool works as usual, but your details will not be filled in next time.
Your details have been filled in.
Your seller details were changed in another tab
Remember to back up your data: it only lives in this browser.
We carried over what you typed on the home page.
Details carried over from your quote: check the invoice number, the dates and the due date.
They stay in this browser: Clairsmith does not keep them.
Erase your details, clients, services and numbering from this device?
Use Ctrl/Cmd+P to print or export as PDF from your browser.
My clients
No saved client yet: they are added at each download.
To correct a client, pick it in the Client field and edit it: it is updated at the next download.
My data
Backup
A .json file you keep yourself: it brings your data back on another browser or after clearing this one.
Erase your details, clients, services and numbering from this device?
Generated Factur-X EN 16931 · engine v1.3 FRL·001 · tested 2026-10-06
Generated Totals to the cent · engine v1.3 FRL·001 · tested 2026-10-06
Rules change. The Forge Log tells you when this tool is updated.
Every piece update is announced there, with what changed and why. 2 emails a month, one-click unsubscribe.
Invoice preview
Invoice preview
INVOICE
From
Bill to
| Description | Quantity | Unit price | Rate (%) | Total |
|---|
- Subtotal
- Total
Indemnité forfaitaire pour frais de recouvrement : 40 €
Pas d'escompte pour paiement anticipé.
This tool helps you structure an invoice. It doesn't replace accounting or legal advice — check the requirements that apply to your country and situation before sending.
Invoicing aid tool: check your numbering and VAT obligations with your accountant or the Urssaf (French social security agency).
This doesn't replace advice from a chartered accountant or HMRC for your VAT situation.
There's no single US federal invoice law — these fields follow common best practice. Sales tax depends entirely on your state; check your State Department of Revenue or a local accountant.
2027 e-invoicing checklist (free)
What to sort out before issuing e-invoices becomes mandatory in France, on 1 September 2027. Leave your email: the Forge Log (2 emails a month) flags every change to the checklist.
What the tool does not do
- It does not send your invoices: from 2027 in France, sending goes through an approved platform.
- Clairsmith keeps none of your invoices: save your copy. Your details can be remembered in this browser only (on-device memory); without a .json backup, clearing the browser erases them.
- “Check and fill” sends only the client's SIREN to the French government's business directory, on click. The VAT number is calculated from the SIREN, not verified: a client under the French VAT exemption scheme may not have one. Confirm it with them.
- It does not replace an accountant.
- The engine is tested with Mustang; the file you generate is not validated individually. Your approved platform has the final say on compliance.
Build notes
- Version
- FRL·001 · v1.3
- Checked on
- Sources
-
- economie.gouv.fr — Facturation électronique checked 2026-10-01
- impots.gouv.fr — Espace professionnel checked 2026-10-01
- FNFE-MPE — Factur-X checked 2026-10-01
- Mustang (validateur EN 16931) checked 2026-10-01
- api.gouv.fr — API Recherche d'entreprises (Annuaire des entreprises) checked 2026-10-06
- Tests
-
- EN 16931 (XSD, Schematron, PDF/A-3) · Mustang · CI test:facturx
- Totaux au centime et cas invalides refusés · CI test:facturx
- Mon atelier : schéma, migration, import, numéro suivant, SIREN (unitaires) ; parcours complet sans requête réseau (e2e, axe) · CI test:atelier + test:e2e (Playwright)
- Vérification du SIREN : clé de TVA (3 SIREN réels), lecture de la réponse, entreprise fermée, introuvable, panne ; aucune requête sans clic (e2e) · CI test:outils + test:e2e (Playwright)
- Role of AI
- AI-assisted first draft of the code and copy, reviewed and corrected. Maths and formats checked by automated tests.
- Known limits
-
- It does not send your invoices: from 2027 in France, sending goes through an approved platform.
- Clairsmith keeps none of your invoices: save your copy. Your details can be remembered in this browser only (on-device memory); without a .json backup, clearing the browser erases them.
- “Check and fill” sends only the client's SIREN to the French government's business directory, on click. The VAT number is calculated from the SIREN, not verified: a client under the French VAT exemption scheme may not have one. Confirm it with them.
- It does not replace an accountant.
- The engine is tested with Mustang; the file you generate is not validated individually. Your approved platform has the final say on compliance.
- History
-
- · Guide: which approved e-invoicing platform as a micro-entrepreneur
- · Guide (in French): setting up a micro-entreprise in 2026
- · Guide: invoicing a client in France from the US or UK
Three steps, no sign-up.
-
Enter your details and your client's.
Company number, VAT number or EIN: the notes required in the country you pick are added for you.
-
Add your lines.
Quantities and prices: totals are worked out to the cent, with VAT or sales tax where it applies.
-
Save it as PDF.
Generate the preview, then print it or save it as a PDF from your browser. Clairsmith keeps nothing you type.
Frequently asked questions
Is my data sent anywhere?
No, with one exception that you trigger yourself. The invoice is calculated and generated in your browser. If you click “Check and fill” for a French client, that client's SIREN, and nothing else, goes to the French government's business directory. To check: open the developer tools, Network tab, then fill in the invoice. Without that click, no request contains what you type.
Which countries does it cover?
The United Kingdom, the United States and France. Pick the country: currency, tax wording and mandatory notes follow.
Can I get a Factur-X e-invoice file?
Yes, on the French version of this tool, for French invoices: it adds a Factur-X EN 16931 file (engine tested with Mustang) inside the PDF. It does not send it: from September 2027 in France, business invoices go through an approved platform.
Do I need an account?
No. There is no account. If you wish, your details are remembered in this browser only, never sent; Clairsmith stores no copy of your invoices: save your PDF.
Related tools
Your second invoice in 30 seconds
- Seller details remembered: they are filled in on your next visit.
- Client found again: your client book suggests it after a few letters.
- Next number: INV-12 becomes INV-13, and you stay in control.
- French client filled in from its SIREN number: official name and address, in one click.
No account: everything stays in this browser, and you can erase it in one click. One exception: a client's SIREN, sent to the French government's business directory when you check it. What is remembered, and how to erase it
Understand the format: Factur-X invoice: what it is and how to create one for free
The guide to go further: E-invoicing 2026-2027: what a micro-entrepreneur must do
The guide to go further: French invoice requirements: the 2026 checklist
FR/EN contracts, terms and reminders: the International Freelance Kit