Home / Validate VAT / Netherlands
Validate Netherlands VAT Numbers via API
When building B2B applications that serve Netherlands (Nederland), validating your customers' BTW-nummer (Belasting over de Toegevoegde Waarde) is essential for EU VAT compliance and protecting your business from tax liability.
The TaxID API provides instant validation of Netherlands VAT numbers through the EU VIES (VAT Information Exchange System). Every request returns the registration status, company name, and registered address — with sub-100ms response times for cached results.Netherlands applies a standard VAT rate of 21% (BTW-nummer) and is fully supported by the VIES system.
QUICK START
curl -H "Authorization: Bearer YOUR_API_KEY" \ http://localhost:3000/api/v1/validate/NL/NL123456789B01
Code examples
Choose your language. Every example validates a Netherlands VAT number and returns the registration status with company details.
const res = await fetch('http://localhost:3000/api/v1/validate/NL/NL123456789B01', {
headers: { 'Authorization': 'Bearer YOUR_API_KEY' }
});
const data = await res.json();
// { valid: true, status: "active", company_name: "...", country_code: "NL", cached: false }
console.log(data);When to validate Netherlands VAT numbers
B2B cross-border sales
When selling goods or services to Netherlands businesses in other EU member states, you must verify their BTW-nummer (Belasting over de Toegevoegde Waarde) to correctly apply zero-rate VAT under the reverse charge mechanism. Failing to validate before zero-rating a transaction makes your company liable for the full VAT amount if the customer turns out to be unregistered.
E-commerce and SaaS checkout
If your platform accepts Netherlands business customers, validating the BTW-nummer (Belasting over de Toegevoegde Waarde) at checkout determines whether to apply 21% VAT (B2C) or zero-rate the sale (B2B reverse charge). This directly affects your invoicing, revenue recognition, and quarterly VAT return figures.
Supplier and partner onboarding
For ERP systems, procurement platforms, and DAC7-regulated marketplaces, validating aNetherlands supplier's BTW-nummer (Belasting over de Toegevoegde Waarde) during onboarding prevents invalid numbers from entering your accounting system — which can cause rejected invoices and audit failures. Validate once at onboarding, then periodically re-validate to catch deregistrations.
About Netherlands VAT format (BTW-nummer)
Dutch VAT numbers include a unique 'B' separator followed by 2 digits (typically '01') which identifies the legal entity within a group. The Netherlands is the European logistics hub — Rotterdam is Europe's largest port — making Dutch VAT validation critical for import/export workflows.
| Field | Value |
|---|---|
| Country code | NL |
| Local name | BTW-nummer (Belasting over de Toegevoegde Waarde) |
| Format | NL + 9 digits + B + 2 digits |
| Regex pattern | ^NL[0-9]{9}B[0-9]{2}$ |
| Example | NL123456789B01 |
| VIES supported | Yes |
VAT rates in Netherlands
Netherlands applies a standard BTW-nummer rate of 21%. Reduced rates of 9% apply to essential goods and services.
| Rate type | Percentage | Currency |
|---|---|---|
| Standard rate | 21% | EUR |
| Reduced rate | 9% | EUR |
Frequently asked questions
What is the Netherlands VAT number format?
Netherlands VAT numbers (BTW-nummer (Belasting over de Toegevoegde Waarde)) follow the format: NL + 9 digits + B + 2 digits. A valid example is NL123456789B01. The TaxID API validates both the format locally and the registration status via VIES, ensuring you only accept properly registered EU businesses.
Is VAT validation mandatory for selling to Netherlands businesses?
EU VAT law requires that suppliers verify a customer's VAT registration before applying zero-rate treatment to intra-community B2B supplies. If you sell goods or services to a Netherlands business without VAT and their registration is invalid, your company may be liable for the full VAT amount plus interest and penalties. Validation is not just recommended — it is your legal due diligence obligation.
What is the standard VAT rate in Netherlands?
The standard VAT rate in Netherlands is 21% (BTW-nummer). Reduced rates of 9% apply to certain goods and services such as food, books, and medical supplies. The TaxID API's /rates endpoint returns all current rates for programmatic access.
How long does Netherlands VAT validation take with TaxID?
For cached results (previously validated in the last 24 hours), the TaxID API responds in under 10ms. For uncached requests, the VIES SOAP call to the Netherlands tax authority typically completes in 100–400ms. Active (valid) numbers are cached for 24 hours; invalid numbers are cached for 1 hour to balance performance with freshness.
Does the TaxID API support VIES for Netherlands?
Yes. Netherlands is fully supported by the EU VIES system and the TaxID API. VIES validates Netherlands VAT numbers in real time against the Netherlands national tax authority's registration database. Dutch VAT numbers include a unique 'B' separator followed by 2 digits (typically '01') which identifies the legal entity within a group. The Netherlands is the European logistics hub — Rotterdam is Europe's largest port — making Dutch VAT validation critical for import/export workflows.
Start validating Netherlands VAT numbers
Free plan includes 100 validations/month. No credit card required.
Get free API key