The short answer: the system rarely changes, the details more often
The basis of VAT refunds from Belgium does not change every year. Directive 2008/9, which regulates the right to refund for Dutch entrepreneurs who have paid VAT in another EU country, is a European framework that has been in place for some time and is not rewritten from one year to the next. What can change, and does so regularly, are the implementation details per country: which cost category Belgium precisely allows, which supporting documents are requested, and how strictly a threshold amount is applied to a request that falls just below or above it.
These details are not in the directive itself, but in the Requirements list that the Dutch Tax Authority maintains per refund country, and in the publications of the Belgian tax authority. We deliberately do not mention a specific change for this year on this page if it has not yet been officially published: taking over an announcement before it appears in the official source does not help you and may be outdated by the time you rely on it.
What can shift in practice
VAT refunds from Belgium often involve three types of changes. First, the allowance per cost category: Belgium may apply the rules for, for example, representation expenses or fuel slightly differently than the previous year, without the directive itself changing. Second, the documentation requirements: which data must appear on an invoice before a request is processed. Third, the way in which the Tax Authority's portal forwards requests and which fields are mandatory in that process.
None of these three affects the right to refund itself. They do affect whether a request is approved in one go, or whether the refund country first asks additional questions. This distinction is important: a change in implementation does not mean you have less right, it means the path to it runs slightly differently. On the page with all topics per situation you will find what is known about each topic, with the date on which the source was last reviewed.
For whom this difference matters
It mainly makes a difference for entrepreneurs who sit close to a threshold: in terms of the threshold amount, in terms of the cost category that is just allowed or just not allowed, or in terms of the deadline. An installation company that refuels and stays overnight in Belgium monthly will notice a tightening of evidence requirements sooner than an entrepreneur who attends a trade fair in Brussels once a year. Also, those who submit themselves via the Tax Authority's portal are more likely to encounter a changed requirement than those who have it done for them, simply because the first group has to keep track of what is different.
For most small entrepreneurs, the practical question is not so much "what exactly changes", but "how do I make sure I don't miss it". This is also why changes in implementation details are usually not a reason to change anything in your own process, unless the change specifically affects your cost category or your way of submitting.
How you keep track of it without doing your own research
The Dutch Tax Authority's Requirements list and the publications of the Belgian tax authority are the places where a real change becomes visible first, not a news article about it. Going through those sources yourself regularly takes time that most office managers and directors do not have for it, especially alongside the rest of the work.
At vatea.eu we keep track of that and mention per source when we last reviewed it, so you can see how current a piece of information is. If you want to see where it comes from first, you can read that on the page about how the information is compiled. If you're curious about what a change means in your case, that's exactly the kind of question that goes beyond mere information, and we'll refer you to a VAT specialist.
An estimate costs you nothing
Whether or not something changes this year, the amount you're leaving on the table in Belgium remains the same regardless of what changes in the execution. If you want to know roughly what amount we're talking about, you can have that calculated in a few questions, free of charge and without needing an account. Questions about what is and isn't covered by the service are collected on the frequently asked questions page.