Belgian business admin, without the guesswork.
Starting or running a company in Belgium means dealing with six or seven institutions, most of which write to you in Dutch or French. Advyze is the one contact who reads it, tells you what it means and makes sure it gets handled.
- One contact, in English
- From €149 per month
- Clear scope, clear price
What you can expect from Advyze
Reachable in English
Email and phone, with an agreed response time per plan.
We follow through
Not just an answer — we check that it actually gets done.
Alongside your accountant
We do not take over their work. We make sure they get what they need.
Clear scope, clear price
Fixed monthly pricing, an explicit list of what is not included.
The real problem
It is rarely the rules. It is knowing who to ask.
Belgium is not an unusually difficult country to do business in. It is a country with a lot of separate parties, each responsible for one slice — and nobody responsible for the whole.
Everything arrives in Dutch or French
Official correspondence follows the language of the region where your company is registered. That is not going to change, and translating each letter yourself is slow and risky.
Nobody owns the whole picture
Your accountant handles your books. Your payroll office handles salaries. Neither of them tracks whether the third party got what it needed.
The order of steps matters
Some registrations block others, and a few early decisions are expensive to undo. Nobody tells you that at the counter.
Who does what
The parties you will deal with
Understanding this list saves more time than any checklist. Each of them is good at their own part, and none of them will tell you what the others need.
You
You run the business and forward whatever arrives.
Advyze
We work out what has to happen, do what falls within our scope and follow it through.
Your partners
Accountant, notary, payroll office, social insurance fund, bank, broker.
Accountant or bookkeeper
- They do
- Keeps your books, files your VAT and tax returns and prepares your annual accounts. A regulated profession in Belgium.
- Advyze does
- We collect what your accountant asks for, turn their questions into concrete actions and follow up until it is delivered.
Notary
- They do
- Executes the incorporation deed of a company and arranges its publication. Only a notary can do this.
- Advyze does
- We assemble the file, coordinate with the notary's office and make sure every document is ready before the appointment.
Business counter (ondernemingsloket)
- They do
- A licensed private organisation that registers you in the Crossroads Bank for Enterprises and issues your enterprise number.
- Advyze does
- We prepare your registration, choose the right activity codes with you and follow up until the number is issued.
Social insurance fund
- They do
- Collects your social security contributions as a self-employed person and administers your rights: pension, health cover, sickness benefit.
- Advyze does
- We arrange your affiliation, watch your quarterly statements and contact the fund when something does not add up.
Payroll office (sociaal secretariaat)
- They do
- Calculates salaries and files the mandatory employment declarations once you hire staff.
- Advyze does
- We make sure they receive the right information on time, and follow up on whatever comes back.
Tax authority (FPS Finance)
- They do
- Handles VAT registration, VAT returns and corporate or personal income tax.
- Advyze does
- We handle the practical filings around registration and changes, and make sure deadlines are not missed.
Bank
- They do
- Opens your business account and provides payment facilities. For company incorporations, also issues the bank certificate.
- Advyze does
- We prepare what the bank asks for and follow up until your account and payment methods actually work.
Insurance broker
- They do
- Advises on your insurance, analyses and compares products and concludes them. Insurance mediation is a regulated activity in Belgium.
- Advyze does
- We refer you to an authorised broker from our network. Advyze does not analyse, compare, recommend, prepare or conclude insurance products.
How it works
Four steps, every time
You do not need to know which institution a letter came from. Working that out is the job.
- 1
Something arrives that you cannot place
A letter in Dutch, an email from your accountant, a statement with a number on it you did not expect. You forward it.
- 2
We work out what it actually is
You get a plain answer: what it says, whether anything has to happen, and by when.
- 3
We involve the right party where needed
Your accountant, the payroll office, the social insurance fund, a notary. We have that conversation so you do not have to find out who is responsible for what.
- 4
We follow it through
You know what has been handled and what is still open. Nothing sits waiting because nobody owned it.
Where to start
What most people come to us for
I want to start a business
Which legal structure fits, what the sequence is, and how long each step realistically takes.
Read moreI already have a company
Ongoing administrative follow-up: incoming post, deadlines, and coordination with your accountant.
Read moreI am a non-EU national
The professional card decides whether you may run a business here at all. Start there.
Read moreQuestions we get first
Do I need to speak Dutch to run a business in Belgium?
Legally, no. Practically, most official correspondence arrives in the language of the region where your company is registered — Dutch in Flanders, French in Wallonia, either in Brussels. You can run a Belgian company entirely in English as long as someone reliably reads and acts on what comes in. That is exactly what Advyze does.
Are you an accountant?
No. Bookkeeping, tax returns and annual accounts are a regulated profession in Belgium and Advyze does not practise it. We work alongside your accountant: we collect what they ask for, translate their questions into concrete actions and follow up until it is done. If you do not have an accountant yet, we help you find one.
Can you help before I have registered anything?
That is often the best moment. The order in which you do things in Belgium matters — some steps block others, and a few decisions in the first weeks are expensive to reverse. We map that out before you start rather than repair it afterwards.
Do you work with people who are not yet living in Belgium?
Yes. A fair share of the English-speaking work involves people preparing a move or setting up a Belgian entity from abroad. Non-EU nationals should look at the professional card requirement first, since it determines whether the rest is even possible.
How does the working relationship run day to day?
By email, and by phone when that is faster. You forward what you receive, we tell you what it is and what happens next. There is no portal to log into and no ticket number.
Not sure where you stand?
Describe your situation in a few lines — where you are from, what you want to do, and what has already been registered. You will get a straight answer about what applies to you.