# Bulgarian VAT Number (ДДС / ЕИК) Check, Format & Rates 2026
> Instant sub-1ms offline checksum validation, syntax verification, and 2026 tax rate lookup for Bulgaria (BG) VAT numbers.

- **Canonical URL:** https://stanzaapi.com/tools/vat-validator/vies/bulgaria-bg
- **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 Bulgaria, the Value Added Tax (VAT) identification number begins with the country prefix 'BG', followed by the national format: 9 or 10 digits.

The number format is governed by national tax authorities and verified via strict syntax and structural pattern matching.

For 2026 tax calculations, the standard VAT rate in Bulgaria is 20%, with applicable reduced rates of 9%, 5%.

Bulgaria adopted the euro on 1 January 2026 at the irrevocable rate of 1.95583 BGN per EUR; since 1 February 2026 the euro is the sole legal currency, while the standard VAT rate remains 20%.

## Specification Matrix
| Parameter | Value | Details |
| --- | --- | --- |
| Country Prefix | BG | ISO 3166-1 alpha-2 / VIES code |
| Local Identifier Name | ДДС номер / ЕИК | National statutory tax terminology |
| Format Structure | 9 or 10 digits | National syntax specification |
| Checksum Algorithm | Format & regex validation | Offline check digit formula |
| 2026 Standard VAT Rate | 20% | Standard statutory rate |
| 2026 Reduced VAT Rates | 9%, 5% | Applicable reduced & super-reduced rates |
| Currency (2026) | EUR | Euro adopted 1 January 2026; 1.95583 BGN = 1 EUR |
| Domestic ЕИК | 9 digits | Unified Identification Code; not VIES-verifiable without the BG prefix |

## Standard JSON Response Model
```json
{
  "valid": true,
  "countryCode": "BG",
  "countryName": "Bulgaria",
  "vatNumber": "BG123456789",
  "syntaxValid": true,
  "checksumValid": true,
  "rates": {
    "standardRate": 20,
    "reducedRates": [
      9,
      5
    ],
    "effectiveYear": 2026
  }
}
```

## Frequently Asked Questions & Edge Cases
### Q: What is the standard VAT rate in Bulgaria for 2026?
**A:** The standard VAT rate in Bulgaria is 20%. Certain qualifying goods and services are eligible for reduced rates of 9%, 5%.

### Q: What is the official structure of a Bulgaria (BG) VAT number?
**A:** A valid Bulgaria VAT number begins with the country code 'BG', followed by 9 or 10 digits. Known locally as ДДС номер / ЕИК, it is used for domestic invoicing and intra-EU cross-border trade.

### Q: Can Bulgaria 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 Bulgaria 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 Bulgaria VAT check digit and syntax confirms compliance prior to transaction settlement.

### Q: Is the Bulgarian ЕИК the same as the VAT number?
**A:** No. The ЕИК (Единен идентификационен код) is a 9-digit domestic company identifier. The intra-EU VAT number used for VIES is the full BG-prefixed number: BG plus 9 digits for legal entities or 10 digits for sole traders. An ЕИК without the BG prefix cannot be VIES-verified.

### Q: Did Bulgaria change currency or VAT rate in 2026?
**A:** Bulgaria adopted the euro on 1 January 2026 at the fixed rate of 1.95583 BGN per EUR, and since 1 February 2026 the euro is the sole legal currency. The standard VAT rate remains 20%, with reduced rates of 9% and 5%.