carf

CARF: international tax reporting for crypto

Firi is legally required to collect and report certain tax information about our customers. This is due to an international framework called CARF.

If you are only tax resident in Norway, Denmark or Sweden, you will usually just need to confirm this. If you are tax resident in another country, we may ask you to provide the country and your tax identification number, also known as TIN.


What is CARF?

CARF stands for Crypto-Asset Reporting Framework. It is an international framework developed by the OECD.

The purpose of CARF is to make it easier for tax authorities in different countries to exchange information about crypto. The framework is intended to support greater transparency and more accurate tax reporting across borders.

What does this mean for you as a customer?

When you create an account, or when we update your customer information, we will ask where you are tax resident.

If you are only tax resident in Norway, Denmark or Sweden, you only need to confirm this.

If you are tax resident in another country, you must provide:

  • the country where you are tax resident
  • your tax identification number, or TIN

We report this information to the Norwegian Tax Administration. If you are tax resident in another country, the Norwegian Tax Administration may share the information with the tax authorities in that country.

What information is reported?

If you are tax resident outside Norway, Denmark or Sweden, we must report the following information to the Norwegian Tax Administration every year:

  • name, address and date of birth
  • country of tax residence
  • TIN
  • total value of crypto at the end of the year
  • gross amounts from purchases, sales and transfers of cryptocurrency during the year

Frequently asked questions

What is a TIN?

TIN stands for Tax Identification Number. It is a number used by tax authorities to identify taxpayers.

The name of the number varies from country to country. For example:

  • Norway: national identity number or D number
  • Sweden: personal identity number or coordination number
  • Denmark: CPR number
  • Germany: Steuerliche Identifikationsnummer (IdNr)
  • USA: Social Security Number (SSN)

Where can I find my TIN?

You can usually find your TIN in documents from the tax authorities in the country where you pay tax, such as your tax assessment, tax deduction card or identity documents.

If you are unsure, we recommend contacting the tax authorities in the relevant country. You can also find more information on the OECD’s website.

What does it mean to be tax resident in a country?

This varies from country to country. It often depends on where you live most of the time, or where you have the strongest connection through, for example, your home, family or work. You are not tax resident in a country simply because you own property there.

If you are unsure whether you are tax resident in another country, you should contact the tax authorities in that country.

Why do you ask about citizenship when this is about tax residence?

We ask about citizenship as part of our standard procedures under anti-money laundering regulations. In addition, some countries have their own tax rules.

One example is the USA, where tax liability is often assessed based on both citizenship and residence. If you are a US citizen, you will therefore usually need to provide your US TIN, which is your SSN, to us.

What happens if I do not provide the information?

We are legally required to collect this information. If we do not receive the information we need about your tax residence, or a valid TIN when required, we may unfortunately have to restrict your account or end the customer relationship.


Should not be considered financial advice. Crypto may involve high risk.