Common Reporting Standard for families: what banks report across borders

Why does the Common Reporting Standard matter to a wealthy family?

The Common Reporting Standard, or CRS, is an information standard developed by the OECD in 2014 for the automatic exchange of financial account data between tax authorities (Wikipedia, Common Reporting Standard). For a wealthy family with accounts in several countries, it gives the tax authority of each home country a yearly view of the accounts held abroad. A family that expects this view can plan its filings with confidence.

The legal basis is the Convention on Mutual Administrative Assistance in Tax Matters. Banks, asset managers and certain insurers do the reporting, and the family does the preparation. This page covers the bank-side mechanics that a family sees, such as forms and data fields, and leaves personal tax conclusions to a licensed adviser who knows your facts.

Which details of a family account do banks report across borders?

For each reportable account, a bank sends the account holder’s name, address, taxpayer identification number, and date and place of birth. It adds the account number and the identifier of the reporting institution. Each field helps the receiving tax authority match the account to a resident, so a clean and consistent record across banks reduces follow-up questions.

The financial data covers the account balance or value at year-end or at closure, plus distributions to the account such as dividends, interest and redemption proceeds. A family that holds a portfolio at 1 bank and a deposit at another sees 2 separate reports, each built from the same fields, which the home authority can then compare.

Do bank accounts and funds of a family fall within the standard?

Bank accounts, bond or equity investments and collective investment vehicles are generally in scope. A family with a deposit account, a brokerage account and a holding in a fund therefore expects each of these to be reported by the institution that keeps it. The institution decides how its own products are classified, so a short question to the relationship manager clarifies the position.

Loans and credit cards sit outside the standard, which keeps the focus on assets that earn income or carry value. Ownership structure shapes what a bank sees: an account held by a person, a company or a trust can each follow different procedures at the bank. Families that hold assets through vehicles gain from asking each bank how it classifies those accounts and which forms it needs.

What does a bank ask a family to confirm about tax residence?

Individuals and most entities opening an in-scope account complete a self-certification of tax residence. The form records the country or countries where the person is resident for tax and the matching taxpayer identification number. A family member who lives in Singapore and holds a passport from another country answers each question with precise, dated facts.

Tax residence is a legal status that follows the rules of each country, so the form asks you to state it rather than infer it. When circumstances change, such as a move between Singapore and Hong Kong, an updated self-certification keeps the bank’s file accurate. Keep a copy of each form with its date, and check those dates when you review your records every year.

How does a family account report travel to a foreign tax authority?

Financial institutions report to their own domestic tax authority, and that authority passes the information on to the tax authorities of the account holders’ countries of residence. The exchange runs each year. The chain has 3 links: the institution, the home authority and the receiving authority, and each link works from the data the institution first collected from the family.

First reporting happened in 2017, with many more jurisdictions starting in 2018, and about 120 countries have signed up to implement the standard according to Wikipedia. The standard is modeled on the United States FATCA regime and adds a multilateral frame that any signing country can join. This breadth means a family can expect the same data fields from a bank in many different countries.

Where does a Singapore family office meet the standard in practice?

A family office in Singapore usually coordinates several accounts across banks and entities, so it is the natural owner of the reporting calendar. It can keep a master table of each account, the holder, the bank, the tax residence declared and the date of the latest self-certification. This table gives the family one view of what each bank holds on file, as of October 2026 or any later review date.

Singapore families often combine a personal account, a holding company and an investment fund, and each entity has its own record at its bank. Aligned names, addresses and taxpayer numbers across these records reduce questions from banks. A 30-minute pre-diagnostic with EQOS Asia (EQOS Asia private page, 2026) can place this table inside a wider family decision.

Can a family prepare its records before a bank asks for them?

Preparation starts with a list. Write each account, bank, holder name, type of vehicle and declared tax residence, then add the taxpayer identification number used with that bank. Review the list every year, and also after a move, a marriage, a birth or a change of citizenship, since each event may change what a bank holds on file.

Ask your advisers 3 questions: which accounts are reportable, which country receives each report, and which documents support your declared residence. The answers belong to a licensed adviser who knows your facts. This page is general information, not legal, tax or investment advice, and it reflects public sources as of October 2026.

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About the author

Stéphane Jambu

President, EQOS Forecast Asia

Stéphane Jambu leads EQOS Forecast Asia and works as a consultant in e-commerce, search visibility, and AI. LinkedIn profile