See every morning which clients are not set up correctly on Peppol.
Since 1 January 2026, Belgian VAT-registered businesses exchange their invoices through Peppol. Peppol-check checks all your clients in the public Peppol register every night and finds duplicate purchase invoices, before the VAT return.
No password, no connection to your accounting software. You get a login link by e-mail; your account is created at your first login.
27 October 2026
Status of the Peppol register for your clients
| Status | Client | Enterprise no. | Note |
|---|---|---|---|
| Cancelled | Bakkerij Peeters bvNot on Peppol | 0712.345.680 | Not on Peppol |
| Platform change | Vermoesen & Zonen bv0208 and 9925 with different providers | 1035.904.075 | 0208 and 9925 with different providers |
| Other track | Koffiebranderij Aroma bvOnly under VAT number (9925) | 0467.189.018 | Only under VAT number (9925) |
| Limited | Garage De Smet nvCannot receive credit notes | 0431.165.493 | Cannot receive credit notes |
| On time | Apotheek ClaesAll set on Peppol | 0431.166.087 | All set on Peppol |
Four ways it goes wrong
A client can be "on Peppol" and still miss invoices. These are the four cases Peppol-check finds every night.
- Cancelled
Not on PeppolThe client cannot receive e-invoices. Suppliers then send PDFs, or nothing.
- Other track
Only under the VAT number (9925)Belgian senders mostly send to the enterprise number (0208). Invoices get lost that way.
- Platform change
0208 and 9925 with two providersSome invoices arrive on a platform nobody looks at.
- Limited
No credit notesInvoices arrive, credit notes do not. Then the VAT no longer adds up.
- On time
All setRegistered under 0208, one provider, invoices and credit notes.
Timetable
You take the first step, Peppol-check does the rest. You run the duplicate check whenever you like.
| When | What |
|---|---|
| Onceyou, 5 minutes | Upload your client listA CSV from Octopus, Exact, Yuki or another package, with each client's name and enterprise or VAT number. |
| 03:00every night | Check in the Peppol registerEvery client under 0208 and 9925. Changes go into a log per client, so you see what changed and when. |
| Mondayevery week | Fix list in your inboxOnly the clients with a problem, with what to ask the client or the Peppol provider for each. |
| Before the VAT returnwhenever you like | Find duplicate purchase invoicesDrop UBL invoices or a CSV export of the purchase journal on the client's page. Duplicates show up right away. |
What data we use
Peppol-check works with public data and with the files you upload yourself. Nothing more.
- Your client list: name and enterprise number per client.
- The public Peppol register: which provider each number sits with and which documents it receives.
- Purchase exports: we keep only possible duplicates (supplier, invoice number, date, amount), not the file.
- No connection to your accounting software, no passwords, one session cookie to stay logged in.
- Servers in the EU (OVHcloud, France). More in the privacy policy.
Pricing
One price per client file. You pay for the clients Peppol-check watches.
| What | Price |
|---|---|
| Per client file, per month nightly check, log, fix list and duplicate check | €1.50 |
| Minimum per firm, per month | €39 |
| Example: firm with 150 client files | €225 / month |
All prices exclude VAT.
Frequently asked questions
Do we have to give access to our accounting software?
No. You upload a CSV with name and enterprise number yourself. For the duplicate check you upload UBL invoices or a CSV export. Peppol-check does not connect to any software.
Where does the Peppol data come from?
From the public Peppol register: the SML (the central address book) and the SMP of each Peppol provider. Anyone can look them up. Peppol-check does it every night for all your clients, under 0208 and 9925.
Why both 0208 and 9925?
A company can be registered under both numbers, and each number can sit with a different provider. The sender's software picks which number it uses. That is why we check both.
What happens to our purchase exports?
We read them, look for duplicates by supplier plus invoice number and by supplier plus amount within a few days, and keep only the result. We do not keep the file itself.
What if the register is unreachable?
Then the client shows as "Unknown" and we check again the next night. A client is never reported as "not registered" when we could not reach the register.
Can I have a client or all our data deleted?
You delete a client yourself, with its log and results. For the whole account, e-mail us; the details are in the privacy policy.
Which languages is Peppol-check available in?
Dutch, French, German and English. Pick the language at the top of the page.
Start with your client list.
Sign up with your e-mail address. Your first check runs right after the upload.