Administration
Doing Your Own Bookkeeping as a Freelancer in the Netherlands
You've registered with the KVK. You've got a BTW number. And now there's a vague sense that you're supposed to be "keeping books" — but nobody handed you a manual. The good news: Dutch bookkeeping for a sole proprietorship (eenmanszaak) isn't complicated in principle. It's mostly about consistent small habits, not accounting expertise.
This guide deliberately skips the exact tax tables and brackets. Those change every year, and you don't need to memorize them. What stays put are the underlying principles below.
The one rule everything else hangs on
As a self-employed person in the Netherlands, you're legally required to keep a proper administration of your business — every euro in, every euro out, in a form you (and the tax office, if asked) can make sense of. That's it. There is no required software and no required format. A spreadsheet is legally fine, and even a shoebox of receipts technically qualifies — as long as it's complete and you can find things in it later. §Belastingdienst — Administratie bijhouden
The three things you're actually dealing with
Strip away the jargon, and self-employed admin in the Netherlands comes down to three ongoing obligations:
| Obligation | How often | What it means |
|---|---|---|
| VAT (BTW) | Usually quarterly | VAT charged minus VAT paid on expenses = pay or reclaim |
| Income tax | Once a year | Business profit reported with your personal return |
| Hours | Logged continuously | Unlocks key deductions (~1,225 hours/year) |
1. VAT (BTW)
Most freelancers file a VAT return every quarter. You report what VAT you charged clients and what VAT you paid on business expenses; the difference is what you owe or get back. There's also a simplified scheme for very low revenue (the kleineondernemersregeling, KOR) that exempts you from charging VAT at all — worth checking if it applies to you, since it removes a whole layer of admin.
New to VAT returns? Our step-by-step VAT return guide and the KOR explainer cover both in plain language.
2. Income tax
Once a year, your business profit gets reported as part of your personal income tax return. Self-employed people get several deductions employees don't — but the rules and amounts shift every year, so don't memorize a number you read somewhere; check the current figures when you actually file, or let your software or accountant handle it.
3. Hours
This one surprises a lot of starters: several of the best self-employed deductions only apply if you've worked a minimum number of hours in your business that year (roughly 1,225 — about 24 hours a week on average). It's not just billable hours either; admin, quoting and marketing time count too. If you're not tracking hours somewhere, you can't prove this later. §Belastingdienst — Urencriterium
What to actually track, day to day
This is the part that matters more than any single tax rule:
Your day-to-day record
A separate bank account isn\'t legally required for an eenmanszaak, but almost everyone ends up wanting one — most banks don\'t allow business transactions on a personal account, and untangling the two later is genuinely painful. Two of these items have their own rules worth knowing: a photo of a receipt is legally valid, and your mileage log has to be kept per trip.
A simple rhythm, not a system
You don't need a complicated system. You need a rhythm:
As it happens
Monthly
Quarterly
Yearly
When to stop doing it yourself
DIY works well for a straightforward freelance business: one type of work, mostly Dutch clients, no staff. It gets noticeably harder once any of the following is true.
International clients
Hiring staff
Complex numbers
Constant doubt
At that point, a bookkeeper or accountant (in Dutch: boekhouder or accountant — not interchangeable titles, the second requires formal accreditation) often earns their fee back fast, mostly by catching things you'd have missed. Not because you couldn't do it, but because they spot the gaps quicker.
Where to check things yourself
For anything specific to your situation, these are the actual sources, not blog posts about the sources:
Official sources
And one more thing
Full transparency: we built ZZP Pulse for exactly this — capturing receipts, hours, mileage and invoices the moment they happen, on your phone, without needing to set up bank integrations or learn accounting software. It doesn\'t replace a bookkeeper; it\'s the layer before the bookkeeper, so that whatever you eventually hand off — to software, an accountant, or your future self at tax time — is already organized instead of a shoebox of receipts. If the habit-building part is the bit you\'d actually struggle with, it\'s worth a look.