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In this section of the Billit website, you will find manuals and explanations about all the features in Billit. You can find help articles using the search function or through the menu structure on the left which follows the menu-structure in Billit.

Peppol
Mandatory e-invoicing via Peppol January 2026

Getting started with Peppol

Peppol or PDF via email

Connect Peppol with other software

International invoicing

Peppol and business expenses
My company
Company tab

Bank tab

Attachments tab

Information tab

History tab

Company files tab

E-invoicing tab

My profile

Options for SSO

FAQ
Dashboard
Fast Input
Import/receive files in Fast Input

Processing files in Fast Input

Smart insights/warnings for Fast Input

Advanced settings for Fast Input

Receiving e-invoices from certain companies

Export/import e-invoices from certain software suites
Income
Invoices

Create and send an invoice

Reminders

Periodic invoicing

Credit notes

Quotes

Order forms

Delivery notes

Pro-forma invoices

Work orders

Sales slip

Receiving self-billing invoices from customers
Expenditure
Invoices

Credit notes

Approving costs in Fast Input

Sale slips

Payment options in Billit

Self-billing
Daily receipts
Daily receipts

Current daily receipts book

History
Documents
Bank
Cash book
Products
Add products

Product list and file
Customers
Adding customers

Customer list & file
Suppliers
Adding suppliers

Supplier list & file
Accountant
General ledger accounts

Analytical accounting

Send documents for processing to your accountant
Declarations
VAT return

Customer list

Expenditure categories
Reports
Time registration
Projects
Settings
General

Email settings

Corporate style

User settings

Licence

Invoices
Invoice layout
Layout templates

Change a template layout

Having a layout template created

Layout of cover letters and reminders
Bèta functions
Register book
Accountant portal
Files
Integrations
ANAF

KSeF

LHDN (Malaysia)

Mini Hotel

Payconiq by Bancontact

QR codes

SAT

Scrada

SDI

Everything about mandatory e-invoicing via Peppol as of 1 January 2026

What exactly does mandatory e-invoicing from 2026
Who will be subject to mandatory e-invoicing via Peppol?
Why will e-invoicing become mandatory in Belgium?
Is it sufficient to only send invoices via Peppol to comply with the obligation?
What do I need to comply with the legal obligation?
Do you need invoicing software to comply with mandatory e-invoicing?
What if my suppliers are not ready for the obligation on time?
What if my customer is not ready for the obligation on time?
Are invoices in PDF format still legal?

Invoices in PDF format (or another format such as Word or Excel) are still legal until the end of 2025. As of January 1, 2026, they will no longer be legal for transactions between Belgian VAT-registered companies. However, PDF invoices will remain valid for sales or services to private individuals.

You can also still voluntarily send a PDF version of the invoice to your customer, but from 2026 onwards, the structured electronic invoice will be the only invoice that is legally compliant.

If you use Billit, a PDF version of your invoice is always sent automatically.
Are paper invoices still legal?
Can I already start send and receiveing e-invoices via Peppol even though this is not yet mandatory?
What should I do with private customers who do not request an invoice?
Do you also need to send invoices via Peppol to private customers?
Will the information on my e-invoice also be reported to the government in real time via e-reporting?
Will e-invoicing become mandatory throughout Europe?
Does the obligation also apply to my suppliers from other countries?
Do I also have to send invoices via Peppol to the government?
Will the obligation also apply to intra-Community transactions (IC)?

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