Frequently asked questions can be found on this page.
E-invoicing
We do not know what the payment status of your e-invoice is. We do not know when the e-invoice will be paid. If your e-invoice has not been paid within 30 days, please contact your client. Your client's contact person is specified in your order letter.
If you are trying to send the e-invoice through your accounting package, contact the supplier of your package. They will then look into why sending an e-invoice has failed.
If you are trying to send an e-invoice through the Supplier Portal, get in touch with Chatbot Efa (bottom right on this page) or use the contact form.
The order number is specified in your order letter. If you cannot find the order number in your order letter, please contact your client.
Get in touch with your client.
I have a question about the Supplier Portal
Do you get the message ‘password unknown’? Then click the ‘forgot password’ button on the login screen and request a new password.
Can't remember your user name? Your user name is the e-mail address you used to create an account. Have you forgotten your e-mail address? Then please contact us.
Not getting a login code? Check your spam box to see if the e-mail with your login code ended up there.
Did you not receive the e-mail with the activation link? Check your spam box to see if the e-mail is there. If this e-mail did not end up in the spam box or the invitation has expired, please contact us.
Have you already sent the e-invoice? If you want to change, delete or add an attachment to the e-invoice, follow these steps:
Credit the sent e-invoice in full.
Create a new e-invoice.
In the ‘Comments’ or ‘Description’ field, write the reason for the credit.
In the Supplier Portal, you can use an invoice number only once. You will be notified if you enter an invoice number that is not unique. If you enter a unique invoice number, you can resend the e-invoice..
Check if you have entered the VAT number correctly:
Enter the VAT number without dots or spaces, for example: NL123456789B01.
Do you have a sole trader or are you a self-employed person? Enter the VAT identification number (VAT ID) and not the sales tax number (ob number).
You can attachments of up to 14MB in the Supplier Portal.
Via the Peppol network, you can attach up to 9 attachments totalling 20MB.
A few ministries have their own rules where you can attach smaller files.
Are the attachments too large? You can save your files in another format so that they are less heavy (less MB). You can also contact your client.
You do not have to send your (pdf) invoice as an attachment to the e-invoice. Your client's system uses the e-invoice. If your client asks for your invoice as an attachment in the engagement letter, you do need to attach it.
If you have received the 403 error message, this is due to your settings or security software. It may help to clear your internet browser's history (internet program) and restarting the browser. You can also try a different browser.
The Supplier Portal contains information on current faults and maintenance.
An OIN (organisation identification number) is a 20-digit number. Government organisations use the OIN to securely send information to contractors and others.
Every Central Government organisation has its own OIN. Some government organisations have multiple OINs. If you do not know or have forgotten your client’s OIN, it is stated in the order letter. If you cannot find the OIN, get in touch with your client.
No. The OIN is mandatory on an e-invoice for Central Government organisations. If you fill in a number other than the OIN, your e-invoice will not be accepted.
You can use the invoice portals to send invoices to the central government and other organizations. This means you can also send e-invoices to municipalities, water authorities, and even to companies. Through the Dutch central government’s Supplier Portal, however, you can only send e-invoices to the central government.
Yes, but only if your client uses the Peppol network.
To register, you will need at least your company’s Chamber of Commerce (KVK) details, VAT number, and IBAN.
The invoice portals set their own pricing. Many providers offer a free version, but this depends on the number of e-invoices you want to send and/or the features you wish to use. Check the websites of the invoice portals for their pricing.
The invoice portals listed on this website meet the invoicing requirements of the Dutch central government. The requirements for purchase orders (e-orders) are not part of this assessment. However, this does not mean the portal does not support e-orders. Please contact the provider of the invoice portal to ask whether you can send and receive e-orders through their service.
