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Invoices

Find out here how to prepare invoices, what information should be on them and which rules apply. Questions about copyright, a credit note or quotation?

The legal retention period for invoices in Belgium

Are you self-employed in Belgium? Then you’ve probably asked yourself how long you need to keep your invoices. It’s a que...

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E-invoicing and clients within the EU

As of 1 January 2026, structured electronic invoicing (e-invoicing) will become mandatory for all B2B transactions betwe...

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What’s the best invoicing software for freelancers in Belgium?

As well as making invoicing tasks easier, good invoicing software also lets you automate follow-up and payments. That gives y...

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E-invoicing: what you need to know as a self-employed in Belgium

As a business, you could previously invoice however you liked, as long as all the required information was included. Many inv...

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How to receive e-invoices from Engie

Starting in 2026, all invoices between Belgian companies will have to go through the Peppol network. But did you know that yo...

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How to enable e-invoicing with Orange

Did you know that by 2026, all invoicing between Belgian companies will have to be done via electronic invoicing? To give you...

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How to enable e-invoicing with Proximus

From 2026, all invoices between Belgian companies will have to go through Peppol. To get a headstart, you can already registe...

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How to enable e-invoicing with Telenet

Did you know that by 2026, all invoices between Belgian companies will have to be sent via electronic invoicing? To already g...

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How to receive e-invoices from Eneco?

From 2026, all invoicing between Belgian companies must be done via the Peppol network. As a business customer, it would be c...

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How to receive e-invoices from Luminus?

Starting 2026, all invoicing between Belgian companies has to be done through the Peppol network. If you are already register...

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Terms and conditions as a freelancer: how do you create them? 

It’s the end of the month, and you need to pay rent and a stack of other bills. But your biggest client is refusing to ...

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How to keep a cash book and a receipt book

Do you often take small amounts or even large amounts of cash in the course of your business? If so, it’s best to keep a ca...

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