BTW (Dutch VAT) explained for freelancers

BTW (belasting toegevoegde waarde) is the Dutch name for VAT, value-added tax. If you registered a ZZP, you are almost certainly a BTW-plichtige (VAT payer) from day one, whether you realised it or not. Here is what that actually means in practice: what to charge, what to file, and the one decision, the KOR, that can remove the whole thing entirely for some freelancers.

1. What BTW actually is

BTW is a tax on the value you add, collected by you on behalf of the tax office, not a cost you personally carry. In practice, that means:

• You add BTW on top of your price when you invoice a client. You collect it, you do not keep it.
• You can reclaim the BTW you paid on your own business costs (a laptop, software subscriptions, a coworking desk).
• Every quarter, you report both sides and pay the difference, or claim a refund if you paid more than you collected.

Most services fall under the standard rate of 21%. A shorter list of goods and services (some food, books, certain cultural and medical services) falls under the reduced rate of 9%. Almost every freelance service, consulting, design, coaching, admin work, falls under the standard 21% rate.

2. When you charge it, and when you do not

• Dutch clients, business or private: charge 21% (or 9% if applicable), standard case.
• Business clients elsewhere in the EU: usually reverse-charged, you invoice at 0% BTW, note "BTW verlegd" (VAT reverse-charged) and their VAT number on the invoice, and they account for the VAT in their own country instead. You still report the transaction on your return.
• Private individuals elsewhere in the EU: different rules apply depending on volume and the nature of what you sell (digital services in particular have their own EU-wide scheme, OSS). If this applies to you, worth a specific check.
• Clients outside the EU: generally 0% BTW as an export of services, but again, worth confirming against your exact situation.

3. How the quarterly return actually works

By default, you file BTW every quarter through Mijn Belastingdienst Zakelijk (the business side of the tax office's online portal). The return itself is short: total sales at each rate, total BTW collected, total BTW you are reclaiming on costs, and the balance you owe or get back.

• Deadline: the last day of the month after the quarter ends (Q1 by end of April, Q2 by end of July, and so on). Both filing and payment share that deadline.
• File even at zero: if you had a quiet quarter with no invoices, you still file a nil return. Skipping it is one of the most common (and easily avoided) freelancer mistakes, and it triggers automatic fines.
• Voorbelasting (input VAT): keep every receipt for a business cost, that BTW is money you can claim back, and it adds up faster than people expect on equipment-heavy setups.

4. The KOR: opting out of BTW altogether

The KOR (kleineondernemersregeling, small-business scheme) lets freelancers under a turnover threshold, around €20,000 a year (2026 figure), opt out of the BTW system entirely: no BTW on your invoices, no quarterly return, nothing to reclaim either.

It suits freelancers with low business costs and clients who could not reclaim VAT anyway (most private individuals). It does not suit well when a business has high cost for equipment, software or other services, since you lose the ability to claim that BTW back. One detail worth knowing before you opt in: since 2025 there is no more fixed multi-year commitment, you can opt out of the KOR whenever you want. But leaving voluntarily has its own waiting period: you are excluded from rejoining until the start of the calendar year after next, so it is worth running the numbers rather than guessing.

If you want a second opinion on whether the KOR fits your situation specifically, message me and I'll help you work it out.

5. What a valid BTW invoice needs

An invoice missing the required fields is not just sloppy, it can be rejected as invalid by the tax office, or by a client's own bookkeeper. Every invoice needs:

• Your business name, address, and KvK number
• Your BTW number
• An invoice number (sequential, no gaps)
• The invoice date and the date the service was delivered
• A clear description of what was delivered
• The amount excluding BTW, the BTW rate applied, and the BTW amount
• The client's name and address (and their VAT number, if reverse-charged)

Most freelancers I work with are not making complicated mistakes, they are missing the boring ones: a nil return not filed, a receipt not kept, an invoice missing a field. None of that is hard once the routine is in place, it is just easy to let slip when you are focused on the actual work.