--- title: What is a TIN number and how to find it? description: Tin number --- [Skip to content](https://support.blockrise.com/what-is-a-tin-number-and-how-to-find-it#main-content) [![Blockrise Logo](https://support.blockrise.com/hubfs/blockrise-logo-custom-color.svg)](https://support.blockrise.com/?hsLang=en-gb) Open main navigation Close main navigation - [Contact us](https://www.blockrise.com/en/contact-me) [Contact us](https://www.blockrise.com/en/contact-me) How can we help you? - There are no suggestions because the search field is empty. 1. [Blockrise](https://support.blockrise.com/?hsLang=en-gb) 2. [Your account](https://support.blockrise.com/your-account?hsLang=en-gb) 3. [Personal Information](https://support.blockrise.com/your-account?hsLang=en-gb#personal-information) # What is a TIN number and how to find it? #### **What is a TIN number?**  A Tax Identification Number (TIN) is a unique number used by tax authorities to identify individuals for tax purposes. As a regulated financial institution, Blockrise is required to collect your TIN to comply with international tax reporting regulations. The name and format of your TIN varies depending on your country of residence. Below you'll find information for the most common countries where Blockrise clients are located. #### **TIN by Country** ### **Netherlands: Burgerservicenummer (BSN)** **What it is:** A 9-digit number assigned to everyone registered in the Netherlands. **Format:** 123456789 **Where to find it:** On your passport, ID card, driver's license, tax correspondence from the Belastingdienst, or in your DigiD account. ### **Belgium: Numéro de registre national / Rijksregisternummer** **What it is:** An 11-digit identification number assigned to all Belgian residents. **Format:** YY.MM.DD-XXX.XX (starts with your date of birth) **Where to find it:** On the back of your Belgian identity card (eID), on tax documents from SPF Finances/FOD Financiën, or on your salary slips. ### **Luxembourg: Numéro d'identification** **What it is:** A 13-digit number assigned to all Luxembourg residents for tax and social security purposes. **Format:** YYYYMMDDXXXXX (starts with date of birth) **Where to find it:** On your social security card, tax documents from the Administration des contributions directes, or on your salary slips. ### **Germany: Steueridentifikationsnummer** **What it is:** An 11-digit tax ID number assigned to all German residents for life. **Format:** 12 345 678 901 **Where to find it:** On your tax assessment (Einkommensteuerbescheid), correspondence from the Bundeszentralamt für Steuern, or on your payslips. You can also request it at *[www.bzst.de](http://www.bzst.de)*. **Note:** Don't confuse this with the Steuernummer. The 11 digit Steuer ID is what you need. ### **France: Numéro fiscal de référence** **What it is:** A 13-digit tax reference number used to identify taxpayers in France. **Format:** 0123456789012 **Where to find it:** On your tax notice (avis d'imposition), in your personal tax space on *[impots.gouv.fr](http://impots.gouv.fr)*, or on correspondence from the Direction générale des Finances publiques. ### **United Kingdom: National Insurance Number** **What it is:** A unique identifier used in the UK for tax and national insurance purposes. **Format:** AB123456C (2 letters, 6 digits, 1 letter) **Where to find it:** On your payslips (P60 or P45), letters from HMRC, or in your personal tax account on *[gov.uk](http://gov.uk)*. **Spain: Número de Identificación Fiscal (NIF)** **What it is:** A tax identification number assigned to all Spanish nationals and residents. For Spanish nationals it matches the DNI; for foreign residents the NIE serves as the TIN. **Format:** 12345678A (8 digits + 1 letter), or X1234567A for NIE holders (letter + 7 digits + letter) **Where to find it:** On your DNI, NIE or TIE card, tax correspondence from the Agencia Tributaria, or in your personal account on agenciatributaria.gob.es. **Czech Republic: Daňové identifikační číslo (DIČ)** **What it is:** A tax identification number assigned to all Czech taxpayers, based on the personal identification number (rodné číslo). **Format:** CZXXXXXXXXXX (country code "CZ" followed by 9 or 10 digits) **Where to find it:** On your Czech ID card (občanský průkaz), tax correspondence from the Finanční úřad, or on your annual tax return. #### **Other Countries** If your country is not listed above, you can find TIN information for all countries on the [OECD's official TIN database](https://www.oecd.org/tax/automatic-exchange/crs-implementation-and-assistance/tax-identification-numbers/). FAQ #### **Why does Blockrise need my TIN?** Blockrise is legally required to collect TIN information for international tax compliance. This helps tax authorities ensure correct reporting of income from bitcoin.  #### **What if I don't have a TIN?** Most tax residents will have been automatically assigned a TIN. If you cannot locate yours, contact the tax authority in your country of residence for assistance. - [Our services](https://support.blockrise.com/our-services?hsLang=en-gb#main-content) - [Blockrise Wallet](https://support.blockrise.com/our-services?hsLang=en-gb#blockrise-wallet) - [Blockrise Brokerage](https://support.blockrise.com/our-services?hsLang=en-gb#blockrise-brokerage) - [Blockrise App](https://support.blockrise.com/our-services?hsLang=en-gb#blockrise-app) - [Bitcoin-backed lending](https://support.blockrise.com/our-services?hsLang=en-gb#bitcoin-backed-lending) - [Partnership program](https://support.blockrise.com/our-services?hsLang=en-gb#partnership-program) - [Deposits and withdrawals](https://support.blockrise.com/deposits-and-withdrawals?hsLang=en-gb#main-content) - [Deposit](https://support.blockrise.com/deposits-and-withdrawals?hsLang=en-gb#deposit) - [Whitelisting](https://support.blockrise.com/deposits-and-withdrawals?hsLang=en-gb#whitelisting) - [General](https://support.blockrise.com/deposits-and-withdrawals?hsLang=en-gb#general) - [Withdrawal](https://support.blockrise.com/deposits-and-withdrawals?hsLang=en-gb#withdrawal) - [About Blockrise](https://support.blockrise.com/about-blockrise?hsLang=en-gb#main-content) - [General](https://support.blockrise.com/about-blockrise?hsLang=en-gb#general) - [Careers at Blockrise](https://support.blockrise.com/about-blockrise?hsLang=en-gb#careers-at-blockrise) - [Contact](https://support.blockrise.com/about-blockrise?hsLang=en-gb#contact) - [Your account](https://support.blockrise.com/your-account?hsLang=en-gb#main-content) - [Registering with Blockrise](https://support.blockrise.com/your-account?hsLang=en-gb#registering-with-blockrise) - [Invoices](https://support.blockrise.com/your-account?hsLang=en-gb#invoices) - [Personal Information](https://support.blockrise.com/your-account?hsLang=en-gb#personal-information) - [DAC8](https://support.blockrise.com/your-account?hsLang=en-gb#dac8) - [Compliance](https://support.blockrise.com/compliance?hsLang=en-gb#main-content) - [Know Your Customer (KYC)](https://support.blockrise.com/compliance?hsLang=en-gb#know-your-customer-kyc) - [Transparency](https://support.blockrise.com/compliance?hsLang=en-gb#transparency) - [Security](https://support.blockrise.com/security?hsLang=en-gb#main-content) - [Two-Factor Authentication (2FA)](https://support.blockrise.com/security?hsLang=en-gb#two-factor-authentication-2fa) - [Safety and security](https://support.blockrise.com/security?hsLang=en-gb#safety-and-security) [![Blockrise Logo](https://support.blockrise.com/hubfs/blockrise-logo-custom-color.svg "Blockrise Logo")](https://www.blockrise.com/) [mailto:support@blockrise.com](mailto:support@blockrise.com) Copyright © 2025