Automatic Exchange of Tax Information (AEOI) and Tax Conventions in Switzerland
Switzerland has undergone a significant transformation of its international fiscal landscape with the adoption of the Automatic Exchange of Information (AEOI) and the modernisation of its tax conventions. These developments mark a turning point in Swiss fiscal policy, traditionally characterised by strong protection of financial privacy. The Confederation now actively participates in international tax cooperation, while ensuring that its economic competitiveness is preserved.
How the AEOI Works: Annual Process
| Step | Actor | Action | Deadline |
|---|---|---|---|
| 1. Identification | Financial institution | Identify reportable accounts (CRS due diligence) | Ongoing |
| 2. Data collection | Financial institution | Collect financial data as at 31 December | End of calendar year |
| 3. Transmission to FTA | Financial institution | Transmit data to the Federal Tax Administration | Before 30 June Y+1 |
| 4. International exchange | FTA | Transmit to fiscal authorities of partner countries | Before 30 September Y+1 |
| 5. Receipt | FTA | Receive information from partner countries on accounts of Swiss residents | Autumn Y+1 |
Information Exchanged Under the CRS Standard
| Category | Data transmitted | Notes |
|---|---|---|
| Holder identity | Name, address, date of birth, TIN (tax identification number) | For natural persons and controlling entities |
| Account information | Account number, reporting financial institution | All reportable financial accounts |
| Balance / value | Balance at 31.12 or surrender value (insurance) | In CHF or account currency |
| Financial income | Interest, dividends, investment income | Gross income for the year |
| Proceeds of sales | Gross proceeds from sale of financial assets | Applicable to custody accounts |
AEOI Obligations vs FATCA Obligations: Comparison
| Criterion | AEOI (CRS standard) | FATCA (United States) |
|---|---|---|
| Persons targeted | Tax residents in CRS partner countries | US citizens and tax residents (US persons) |
| Geographic scope | >100 partner countries (bilateral) | Only to the United States |
| Swiss legal basis | AEOIA (Federal Act on the International Automatic Exchange of Information) | Bilateral agreement Switzerland–United States (2014) |
| Reciprocity | Yes (principle of reciprocity) | Limited (the US transmits little information) |
| Non-compliance sanctions | Fines under AEOIA (up to CHF 250,000) | Withholding tax 30% on US income for non-compliant financial institution |
Legal Foundations and Principles of AEOI in Switzerland
The Automatic Exchange of Information rests on a solid legal framework in Switzerland. The principal legal basis is the Federal Act on the International Automatic Exchange of Information in Tax Matters (AEOIA), which came into force on 1 January 2017. This act transposes into Swiss law the Common Reporting Standard (CRS) developed by the OECD.
A fundamental aspect of the Swiss AEOI system is compliance with the principles of specificity and reciprocity. The principle of specificity guarantees that the information transmitted may only be used for fiscal purposes. Reciprocity ensures that the exchange of information functions in both directions, thus creating a balanced system between Switzerland and its partners.
Practical Implications for Taxpayers
For Swiss residents holding assets abroad: information on their foreign accounts is received by the FTA from partner countries. Complete declaration of foreign assets in the Swiss tax return is mandatory and verifiable.
For non-residents holding assets in Switzerland: their Swiss accounts are reported to their national tax authorities via the AEOI. Tax compliance in the country of residence is now readily verifiable.
Frequently Asked Questions on the Automatic Exchange of Tax Information
What information do Swiss banks transmit under the AEOI?
Swiss financial institutions transmit annually: the identity of the account holder (name, address, date of birth, tax identification number), account numbers, the balance or value of the account at 31 December, financial income (interest, dividends), and the gross proceeds from sales of financial assets. These data are transmitted to the FTA which communicates them to the partner countries.
How do financial institutions identify accounts to be reported under the AEOI?
Financial institutions apply due diligence procedures under the CRS (Common Reporting Standard): for new clients, self-certification of fiscal residence on account opening; for existing clients, analysis of available data according to indicia of foreign residence. Entities (companies, trusts) require additional analysis to identify controlling beneficial owners.
Can Switzerland suspend the AEOI with a country that does not respect confidentiality?
Yes. Switzerland takes a bilateral approach and may suspend or refuse to activate the AEOI with a jurisdiction if the standards of confidentiality, data security or reciprocity are not respected. Regular audits are conducted to verify the compliance of partner countries. The list of partner countries is therefore subject to change.
What are the sanctions for a Swiss financial institution that fails to comply with AEOI obligations?
The AEOIA provides for significant fines: up to CHF 250,000 for intentional violation of reporting or due diligence obligations, and up to CHF 100,000 for negligent infringements. FINMA may also take supervisory measures (warnings, activity restrictions) against establishments that do not meet their compliance obligations.