How the Swiss banking system works

Who runs the Swiss banking system?

The Swiss National Bank, FINMA, esisuisse and SIX Group form the architecture of the Swiss banking system: four institutions, each holding one role and none holding two.

The Swiss National Bank, founded in 1907, conducts monetary policy under the National Bank Act with one primary mandate: price stability. It issues the franc, acts as lender of last resort and, together with FINMA, designates which banks are systemically important. Four banks hold that status as of the 2024 statistics: UBS, Zürcher Kantonalbank, Raiffeisen and PostFinance. The SNB does not supervise individual institutions.

Supervision belongs to FINMA, the Swiss Financial Market Supervisory Authority, operating since 1 January 2009 under the Financial Market Supervision Act (FINMASA). FINMA grants and withdraws banking licences under Art. 3 of the Banking Act, sets capital and conduct requirements and runs enforcement. Anyone professionally taking deposits from the public needs its licence; the requirements are set out in our note on FINMA authorisation.

esisuisse is the deposit-protection scheme. If a member bank fails, deposits are covered up to CHF 100,000 per client per bank. Member banks fund the scheme with up to CHF 7.9 billion, the statutory 1.6% of all protected deposits, and since the revised Banking Act took effect on 1 January 2023, half of that amount must be pre-placed as collateral so payouts can start quickly.

SIX Group, owned by around 120 financial institutions, runs the market infrastructure: the SIX Swiss Exchange, the central securities depository and the SIC payment system, which it operates on behalf of the SNB and through which interbank franc payments settle.

How many banks does Switzerland have?

Switzerland had 230 banks at the end of 2024, the most recent full year in SNB banking statistics, down from 275 in 2014. The decline comes mainly from consolidation among foreign, regional and savings banks. The table shows each category with its count and whether a state guarantee stands behind it; for named institutions rather than categories, see our comparison of 36 Swiss banks.

Two readings of the table matter. First, the SNB counts the entire Raiffeisen network as a single institution, so the headline 230 understates the number of separate legal entities by roughly two hundred. Second, "online bank" is not an SNB category: digital providers either hold a full banking licence (Swissquote, Alpian), the fintech licence under Art. 1b of the Banking Act, or operate on a partner bank's licence, as neon does with Hypothekarbank Lenzburg.

What makes Swiss banking different?

Swiss banking differs from most European systems in four structural features: the universal banking model, the franc, a capital regime above the international floor, and an unusually dense local layer. A single Swiss banking licence covers deposit-taking, lending, securities trading and asset management, so one institution can hold the whole client relationship, and multi-currency accounts are standard rather than a premium add-on.

The currency anchors the system. The franc is managed by the SNB for domestic price stability rather than for a currency union, and it behaves as a refuge asset in market stress, which is one reason foreign clients hold francs they do not spend. On capital, Switzerland applied the final Basel III standards on 1 January 2025, ahead of the UK and the US, on top of the "Swiss finish" that has long demanded more of large banks than Basel minimums require.

The local layer spreads risk: 24 cantonal banks with public mandates, around 210 Raiffeisen cooperatives and 58 regional and savings banks keep retail competition alive and distribute mortgage exposure across many balance sheets. The result is scale that has little to do with the size of the country: banks in Switzerland held CHF 8,561 billion in custody accounts in 2025 (SNB), of which CHF 4,008 billion for foreign clients, against a national GDP of CHF 824.6 billion in 2024.

Does Swiss banking secrecy still exist?

Swiss banking secrecy still exists domestically and has ended internationally for tax purposes. Art. 47 of the Banking Act, in force since 1934, makes it a criminal offence for bank staff to disclose client information, punishable by up to three years' imprisonment, or five where it is done for gain. That protection against private third parties (a counterparty, an employer, the press) remains real. What ended is concealment from foreign tax authorities: under the automatic exchange of information (AEOI/CRS), Switzerland has collected non-resident account data since 1 January 2017 and, as of June 2026, exchanges it with around 108 partner jurisdictions; US persons are reported separately under FATCA. The exact scope of Art. 47, its exceptions and what AEOI changed are treated in our article on banking secrecy in Switzerland.

What did the Credit Suisse collapse change?

The collapse of Credit Suisse in March 2023 turned a two-big-bank system into a one-big-bank system. The rescue ran on a compressed timeline:

• 19 March 2023: the Federal Council, FINMA and the SNB brokered an emergency takeover by UBS priced at CHF 3 billion.
• Liquidity backstop: SNB lines of up to CHF 200 billion, partly under federal guarantee, plus a CHF 9 billion federal loss guarantee, all repaid or terminated by 11 August 2023.
• AT1 write-down: FINMA ordered around CHF 16 billion of Credit Suisse AT1 bonds written down to zero, a decision still being fought in the courts as of June 2026.
• Legal mergers: Credit Suisse AG merged into UBS AG on 31 May 2024; Credit Suisse (Schweiz) AG followed into UBS Switzerland AG on 1 July 2024.

For clients the practical change was less choice at the top: corporates and funds that once split mandates between two Swiss global banks now face one, and foreign, cantonal and stock exchange banks have moved to take the difference. The policy consequence is the too-big-to-fail revision. UBS's balance sheet approaches twice Swiss GDP, and on 22 April 2026 the Federal Council adopted its dispatch on amending the Banking Act together with a revised Capital Adequacy Ordinance: systemically important banks must back foreign subsidiaries fully with CET1 capital, raising UBS's requirement by roughly USD 20 billion, phased in over about seven years. Parliament takes up the bill from summer 2026, so the final shape of Swiss TBTF rules is still open.

Can foreigners use the Swiss banking system?

Foreigners can use the Swiss banking system: non-residents may hold private and corporate accounts, and banks decide case by case on source of funds, purpose and risk rather than on nationality. Entry conditions differ sharply by segment, from online banks with minimal thresholds to private banks expecting CHF 500,000 or more. Eligibility, documents and realistic timelines are covered in our non-resident account guide; where you want the file built and the bank chosen with you, our bank account opening service handles preparation and introductions. In the files we prepare, the segment threshold matters less than the source-of-funds story: a clean, fully documented origin of wealth opens a universal-bank account near the CHF 50,000 mark, while a thin or unexplained one stalls even at private-banking sizes.

Limits of the Swiss system

The Swiss banking system is not the right answer to every problem, and four limits deserve naming. It is no longer a tax haven: AEOI reporting means a Swiss account offers no concealment from your home tax authority, and any structure designed around secrecy fails at the design stage.

It is expensive for non-residents: compliance-driven pricing puts maintenance and onboarding costs well above domestic levels, and below roughly CHF 100,000 in assets many relationships cost more than they return. It is difficult for US persons: FATCA leads most Swiss banks to decline US retail clients, leaving a short list of specialists.

And it is concentrated: the big-bank category (in practice, UBS) carries 38% of the system's CHF 3,219 billion balance-sheet total, and until Parliament settles the TBTF bill there is no tested answer to the failure of the one remaining big bank. Deposit protection also stops at CHF 100,000 per client per bank; larger balances rely on the bank itself, not on the safety net. The rest of our banking guides deal with these constraints bank by bank and account by account.