# Swedish VAT Number (Momsnr) Validator & VIES Check
> Instant sub-1ms offline checksum validation, syntax verification, and 2026 tax rate lookup for Sweden (SE) VAT numbers.

- **Canonical URL:** https://stanzaapi.com/tools/vat-validator/vies/sweden-se
- **Governing Standard:** EU Council Directive 2006/112/EC (European Commission Taxation & Customs Union (VIES))
- **Latency:** <1ms Edge
- **Privacy:** In-memory execution only (zero data stored or logged)

## Technical Overview & Governing Rules
In Sweden, the Value Added Tax (VAT) identification number begins with the country prefix 'SE', followed by the national format: 12 digits ending with 01, Luhn checksum (Momsregistreringsnummer).

The number incorporates a mandatory Luhn / Mod-10 arithmetic checksum algorithm that protects against transcription errors before making external VIES subrequests.

For 2026 tax calculations, the standard VAT rate in Sweden is 25%, with applicable reduced rates of 12%, 6%.

## Specification Matrix
| Parameter | Value | Details |
| --- | --- | --- |
| Country Prefix | SE | ISO 3166-1 alpha-2 / VIES code |
| Local Identifier Name | Momsnr | National statutory tax terminology |
| Format Structure | 12 digits ending with 01, Luhn checksum (Momsregistreringsnummer) | National syntax specification |
| Checksum Algorithm | Luhn / Mod-10 | Offline check digit formula |
| 2026 Standard VAT Rate | 25% | Standard statutory rate |
| 2026 Reduced VAT Rates | 12%, 6% | Applicable reduced & super-reduced rates |

## Standard JSON Response Model
```json
{
  "valid": true,
  "countryCode": "SE",
  "countryName": "Sweden",
  "vatNumber": "SE123456789",
  "syntaxValid": true,
  "checksumValid": true,
  "rates": {
    "standardRate": 25,
    "reducedRates": [
      12,
      6
    ],
    "effectiveYear": 2026
  }
}
```

## Frequently Asked Questions & Edge Cases
### Q: What is the standard VAT rate in Sweden for 2026?
**A:** The standard VAT rate in Sweden is 25%. Certain qualifying goods and services are eligible for reduced rates of 12%, 6%.

### Q: What is the official structure of a Sweden (SE) VAT number?
**A:** A valid Sweden VAT number begins with the country code 'SE', followed by 12 digits ending with 01, Luhn checksum (Momsregistreringsnummer). Known locally as Momsnr, it is used for domestic invoicing and intra-EU cross-border trade.

### Q: Can Sweden VAT numbers be validated offline without VIES downtime?
**A:** Yes. Our API executes deterministic mathematical checksums and regex format rules at the Cloudflare edge in <1ms, shielding your checkout flow from slow or offline European Commission VIES servers.

### Q: How do I verify if a Sweden company is eligible for cross-border zero-rated B2B invoicing?
**A:** Under EU Directive 2006/112/EC, intra-community supply of goods and services is zero-rated when both seller and buyer have valid VIES VAT registrations. Validating the Sweden VAT check digit and syntax confirms compliance prior to transaction settlement.