# 10 Essential Questions About TIN in Iceland

> Verify Icelandic Tax IDs (Kennitala & VAT) instantly. Navigate the Skatturinn portal, comply with 24% VAT and 2026 digital mandates, and ensure seamless KYB with TaxDo.

Source: https://taxdo.com/resources/faq/post/verify-iceland-kennitala-vat-tax-id

Last updated: 2026-03-13

Iceland’s tax system is highly integrated, driven by a single “master key” for identity: the **Kennitala**. As of 2026, the **Iceland Revenue and Customs (Skatturinn)** has further centralized its digital services, making real-time validation of business and individual identifiers the standard for everything from banking to B2G e-invoicing. Whether you are scaling a startup in Reykjavik or managing cross-border VAT, understanding the **kt.** and the **VAT number** is the baseline for compliance.  
This FAQ guide provides grounded, expert insights into Iceland’s identification system, updated for the 2026 regulatory environment.  
Businesses that make the smart choice to use [TaxDo’s GTL (Global TIN Lookup)](https://taxdo.com/services/tax-id-validator) connect instantly to official Icelandic registries, ensuring 100% accuracy in Kennitala and VAT validation while navigating the North Atlantic’s digital-first tax landscape.

## Frequently asked questions

### 1. What is a TIN in Iceland?

In Iceland, the primary identification number is the **Kennitala (kt.)**. It serves as a universal identifier for both tax and civil purposes.

- **For Individuals:** It is the national ID number used for everything from healthcare to personal income tax.
- **For Businesses:** It is the commercial registration number assigned upon incorporation, used for corporate tax and legal identity.

### 2. What types of identifiers exist?

The Icelandic system is remarkably streamlined, revolving around the Kennitala:

- **Kennitala (kt.):** The 10-digit primary identifier for all persons and legal entities.
- **VAT Number (VASK-númer):** A 5 or 6-digit number assigned to businesses that exceed the registration threshold.
- **System ID Number (Kerfiskennitala):** A temporary ID number issued to foreign nationals or entities that need a taxpayer identity but do not have permanent residence.
- **EORI Number:** Required for customs and trade with the EU, linked directly to the business Kennitala.

### 3. What is the format of the Kennitala and VAT Number?

Icelandic identifiers follow a precise 10-digit logic that reveals birth or registration data at a glance.

- **The Kennitala Structure:** Exactly **10 numeric digits** (e.g., `120174-3399`).

  - **Digits 1–6:** Date of birth (DDMMYY) or registration.
  - **Digits 7–8:** Randomly assigned (usually 20–99).
  - **Digit 9:** Checksum (Modulo 11).
  - **Digit 10:** Century indicator (9 for 1900–1999, 0 for 2000–2099).
- **The VAT Number:** A **5 or 6-digit numeric string**, often prefixed with "**IS**" (e.g., `IS 12345`).

**Technical Insight:** To distinguish between people and companies, Iceland adds **40** to the first two digits (the "Day" component) for legal entities. Therefore, a business Kennitala will always start with **4, 5, 6, or 7** (e.g., a company registered on the 10th would start with `50`).

### 4. Which authority issues the TIN?

The [Registers Iceland (Þjóðskrá)](https://www.skra.is/english/) is responsible for issuing Kennitalas to individuals.

For businesses, the [Internal Revenue Directorate (Skatturinn)](https://www.skatturinn.is/english/) (Fyrirtækjaskrá) issues the Kennitala during company registration. The VAT number is subsequently issued by the same authority after a separate application.

### 5. Who needs to register for a TIN and VAT? (2026 Update)

**Registration Thresholds & Mandates:**

- **Mandatory VAT Registration:** Any business (local or foreign) with a taxable turnover exceeding **ISK 2,000,000** (approx. €13,400) in a 12-month period must register.
- **B2G E-Invoicing:** Since 2020, all public sector entities are mandated to receive structured e-invoices. While B2B e-invoicing is voluntary in 2026, most Icelandic firms utilize the **Peppol** network for interoperability.
- **Non-Residents:** Foreign businesses selling digital services to Icelandic consumers (B2C) must register for VAT under the "VOES" (VAT on Electronic Services) scheme if they cross the ISK 2 million threshold.

**Tax Rates (2026):**

- **Standard VAT:** 24%.
- **Reduced VAT:** 11% (applied to food, books, hotel rooms, and heating).
- **Corporate Income Tax:** 20% for LLCs and 37.6% for partnerships.

### 6. How to register for a TIN in Iceland?

Registration is almost entirely digital, though foreign directors may need to provide verified passport copies.

- **Step 1: Company Registration:** Register your entity (e.g., an **ehf.** or private limited company) with the **Register of Enterprises** to receive your Kennitala.
- **Step 2: VAT Application:** Submit form **RSK 5.02** to the Skatturinn. Foreign companies often require a local VAT representative.
- **Step 3: System ID (Optional):** If you are a foreign contractor working in Iceland for less than 6 months, apply for a **System Kennitala** via form RSK 3.30.

### 7. How to verify an Icelandic Tax ID?

In a small, highly connected economy like Iceland, verifying a partner's status is standard due diligence.

- **Official Registry:** Use the [Skatturinn Business Search](https://www.skatturinn.is/fyrirtaekjaskra) to verify the status of any Kennitala.
- **VAT Search:** The Skatturinn portal allows you to confirm if a specific Kennitala is registered in the VAT registry (VASK-skrá).
- **TaxDo Automation:** Manual checks across Icelandic-language portals can be slow. TaxDo’s **GTL** service provides real-time API verification to confirm an Icelandic VAT ID or Kennitala is active and matches the official record.

### 8. How TaxDo Helps Companies with TIN Compliance in Iceland?

Iceland’s "Century Logic" and "Company Offset (+40)" make manual validation prone to human error. TaxDo provides the essential automation layer:

- **GSV (Global Syntax Validation):** Instant structural and checksum checks for the **10-digit Kennitala**, distinguishing between individuals and legal entities automatically.
- **GTL (Global Real-Time Tax ID Verify/Lookup):** Connects to the **Skatturinn** master files to confirm a **Business VAT ID** is "Active," protecting you from non-deductible input VAT claims.

**TaxDo TIN Validation Coverage in Iceland**

| **Entity Type** | **Identifier Type**        | **Covered by Product**                                                   |
| --------------- | -------------------------- | ------------------------------------------------------------------------ |
| Business        | **VAT Number (IS Prefix)** | **[GTL (Official Lookup)](https://taxdo.com/services/tax-id-validator)** |
| Business        | **Kennitala (10-digit)**   | **GSV (Syntax Validation)**                                              |
| Individual      | **Kennitala (10-digit)**   | **GSV (Syntax Validation)**                                              |

### 9. What are the uses of TIN for businesses in Iceland?

In Iceland, the Kennitala is the anchor for every interaction with the state and the private sector.

| **Business Context** | **Key Usage of Identifier**                                 | **Compliance Criticality**                                                                          |
| -------------------- | ----------------------------------------------------------- | --------------------------------------------------------------------------------------------------- |
| **Banking**          | Opening a business account at Landsbankinn or Íslandsbanki. | **Mandatory:** Banks cannot open accounts without a verified business Kennitala.                    |
| **B2G Procurement**  | Submitting bids for public contracts.                       | **Blocker:** All public invoices must be linked to a valid kt. and transmitted via Peppol.          |
| **Customs**          | Clearing imports via the **Customs (EES)** system.          | **Blocker:** Goods will be held at port if the Kennitala isn't correctly linked to an active EORI.  |
| **Employment**       | Paying salaries and withholding tax.                        | **Mandatory:** Payroll software requires the Kennitala of every employee to report social security. |

### 10. What happens if a TIN (Kennitala) is incorrect or missing?

Using an invalid or inactive Kennitala in Iceland leads to immediate operational failure:

- **Digital "Ghosts":** Without a valid kt., you cannot log in to the **Island.is** portal, which is required for all government filings.
- **VAT Liability:** If you pay an invoice to a supplier whose VAT status isn't active, you cannot reclaim the **24% VAT**, significantly increasing your costs.
- **Customs Penalties:** Incorrect ID data on import manifests results in "Gridlock" at the Reykjavik port, accruing storage fees and administrative fines.
- **Reputation Risk:** Icelandic businesses rely heavily on the **CreditInfo** registry; an inactive or invalid Kennitala will result in a "No Credit" rating, effectively shutting down B2B trade.

## Conclusion

Iceland’s tax landscape is as distinct as its geography. With the **VASK-númer** and **Kennitala** serving as the only gateways to commerce, precision is non-negotiable. In 2026, "manual" verification is a liability. [TaxDo](https://taxdo.com/services/tax-id-validator) provides the critical automation layer needed to navigate Iceland's high-stakes digital environment. By integrating TaxDo’s GTL and GSV solutions, you eliminate the risks of manual errors and ensure your North Atlantic operations are 100% compliant with Skatturinn mandates.