Home / Validate VAT / Sweden
Validate Sweden VAT Numbers via API
When building B2B applications that serve Sweden (Sverige), validating your customers' Momsnummer (Mervärdesskattenummer) is essential for EU VAT compliance and protecting your business from tax liability.
The TaxID API provides instant validation of Sweden 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.Sweden applies a standard VAT rate of 25% (Momsnummer) and is fully supported by the VIES system.
QUICK START
curl -H "Authorization: Bearer YOUR_API_KEY" \ http://localhost:3000/api/v1/validate/SE/SE123456789012
Code examples
Choose your language. Every example validates a Sweden VAT number and returns the registration status with company details.
const res = await fetch('http://localhost:3000/api/v1/validate/SE/SE123456789012', {
headers: { 'Authorization': 'Bearer YOUR_API_KEY' }
});
const data = await res.json();
// { valid: true, status: "active", company_name: "...", country_code: "SE", cached: false }
console.log(data);When to validate Sweden VAT numbers
B2B cross-border sales
When selling goods or services to Sweden businesses in other EU member states, you must verify their Momsnummer (Mervärdesskattenummer) 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 Sweden business customers, validating the Momsnummer (Mervärdesskattenummer) at checkout determines whether to apply 25% 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 aSweden supplier's Momsnummer (Mervärdesskattenummer) 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 Sweden VAT format (Momsnummer)
Swedish VAT numbers (momsnummer) are 12 digits long, derived from the Swedish organisation number by adding '01' at the end. Sweden is a major B2B market and home to many global tech companies including Spotify, King, and Klarna.
| Field | Value |
|---|---|
| Country code | SE |
| Local name | Momsnummer (Mervärdesskattenummer) |
| Format | SE + 12 digits |
| Regex pattern | ^SE[0-9]{12}$ |
| Example | SE123456789012 |
| VIES supported | Yes |
VAT rates in Sweden
Sweden applies a standard Momsnummer rate of 25%. Reduced rates of 12% and 6% apply to essential goods and services.
| Rate type | Percentage | Currency |
|---|---|---|
| Standard rate | 25% | SEK |
| Reduced rate | 12% | SEK |
| Reduced rate | 6% | SEK |
Frequently asked questions
What is the Sweden VAT number format?
Sweden VAT numbers (Momsnummer (Mervärdesskattenummer)) follow the format: SE + 12 digits. A valid example is SE123456789012. 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 Sweden 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 Sweden 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 Sweden?
The standard VAT rate in Sweden is 25% (Momsnummer). Reduced rates of 12% and 6% 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 Sweden 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 Sweden 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 Sweden?
Yes. Sweden is fully supported by the EU VIES system and the TaxID API. VIES validates Sweden VAT numbers in real time against the Sweden national tax authority's registration database. Swedish VAT numbers (momsnummer) are 12 digits long, derived from the Swedish organisation number by adding '01' at the end. Sweden is a major B2B market and home to many global tech companies including Spotify, King, and Klarna.
Start validating Sweden VAT numbers
Free plan includes 100 validations/month. No credit card required.
Get free API keyAlso validate VAT in: