Why Switzerland is keeping interest rates at zero while others tighten

0% is still the number shaping Swiss borrowing, saving and housing costs. The Swiss National Bank has kept its key interest rate at zero for more than a year, even as major central banks maintain much higher settings. The next test comes on September 24, 2026, when the SNB will decide whether domestic conditions justify a change.

The gap is clear. The European Central Bank's rate stands at 2.25%, while US rates range between 3.5% and 3.75%. The ECB is widely expected to raise its rate at its September 10 meeting, according to the source article. Those moves have intensified scrutiny of Switzerland's unusually cheap money.

For households, the policy filters through to mortgage offers, savings accounts and pension returns. Ten year mortgages averaged 1.9% in Switzerland, according to Comparis. Borrowers still face higher costs than the SNB's headline figure suggests, because banks price loans according to market funding, risk and the term of the mortgage.

The SNB's decision will also be watched in financial centres from Zurich to Geneva. Investors are weighing whether Switzerland can preserve low rates while the franc remains strong and inflation stays subdued.

Swiss inflation was just 0.8% in August 2026. That figure gives the SNB room to keep rates low while other central banks respond to stronger price pressure. Average inflation across European countries stood at 2.9% in July, and the US rate was 3.4%, according to the source article.

Central banks use interest rates to restrain demand and prevent inflation from becoming embedded in wages, services and expectations. When price growth is weak, aggressive tightening can create unnecessary damage by raising the cost of credit for households and companies.

Caroline Hilb, head of investment and pension provision at Raiffeisen Bank, said Switzerland's low inflation and strong franc reduce the need for a rate increase. “At present, inflationary pressure is still too low and the Swiss franc is too stable for there to be any need to adjust interest rates,” she said.

Daniel Kalt, UBS chief economist, reached a similar conclusion. “Inflation is still too low for that,” he said when assessing whether Switzerland faced pressure to raise rates. The figures explain the divergence. The SNB is responding to Swiss conditions, even when the policy choices of Washington and Frankfurt affect exchange rates, capital flows and imported goods.

The franc remains one of the SNB's most important policy variables. Switzerland's currency has a long reputation as a safe haven, attracting demand when investors seek stability. A strong franc reduces the cost of imported energy, food and manufactured goods, helping contain consumer prices.

That currency effect changes the interest rate calculation. A rate increase could support the franc further, making Swiss exports more expensive for customers abroad. Swiss manufacturers, tourism operators and companies with international revenues would then face pressure even if domestic inflation remained limited.

Caroline Hilb said the franc was “too stable” to require a policy adjustment. Her assessment reflects the SNB's broader balancing act. The central bank must monitor inflation inside Switzerland while also considering how interest rate differences influence the currency and financial markets.

The exchange rate does not insulate Switzerland completely. Hilb noted that higher US rates can push Swiss rates upward because financial markets operate across borders. Swiss mortgage pricing has already risen slightly, although the increase has been weaker than in many European countries and in the United States.

For exporters in cantons such as Vaud, Basel City and Zurich, currency movements can matter as much as the SNB's headline rate. A stable franc offers price relief for consumers, while its strength can narrow margins for firms selling abroad.

Switzerland's fiscal discipline reinforces its low rate environment. The country carries relatively low public debt by international standards and operates a constitutional debt brake designed to prevent government spending from exceeding income over time.

The system requires the government to use surplus revenues to reduce debt during strong economic periods. It also permits additional spending during weaker years, provided the accounts balance across the economic cycle. UBS chief economist Daniel Kalt said the mechanism helps limit debt and prevents the state from spending taxpayers' money recklessly.

That fiscal position matters to monetary policy because the SNB does not face the same combination of inflation and public borrowing pressure seen in some larger economies. Switzerland can support economic stability without relying on heavy government borrowing, while low inflation reduces the need for the central bank to cool demand.

The benefits reach beyond federal accounts. Cantons and municipalities operate within their own budget constraints, and public finances influence how investors assess Swiss assets. A reputation for debt discipline can help keep funding costs contained for the state and private borrowers.

It does not remove every risk. Property prices remain high, and households with large mortgages remain exposed if market rates rise. The debt brake also limits how freely Bern can respond to shocks. For now, however, the fiscal framework strengthens the case for patience at the SNB.

The September 24 decision will test how long cheap money can last. The SNB has no formal obligation to match the Federal Reserve or the ECB. Its mandate requires attention to price stability and economic conditions in Switzerland, where inflation remains well below the rates reported for Europe and the United States.

Still, international divergence carries consequences. Higher foreign rates can pull investment away from Swiss assets or lift market funding costs for Swiss banks. Those effects can reach mortgage borrowers even without an SNB move. Comparis already puts the average ten year mortgage at 1.9%, a reminder that retail borrowing rates do not move in lockstep with the policy rate.

Savers face the other side of the equation. With the key rate at zero, ordinary bank deposits earn little or no interest, while pension funds and conservative investors search for returns in a low yield environment. Borrowers benefit from affordable credit, but households renewing fixed mortgages must watch market pricing closely.

Caroline Hilb expects the Federal Reserve's next move to remain uncertain, partly because rate decisions have not historically been made in the run up to US midterm elections. Daniel Kalt expects a US increase. Their disagreement underlines the uncertainty facing markets. The SNB can hold at zero while Swiss inflation stays low, but global rates will continue to set the boundaries around that choice.