SNB Interest Rate Decision on June 18, 2026: What It Means for Your Mortgage

The next monetary policy assessment of the Swiss National Bank (SNB) will take place on June 18, 2026. It is the second of four regular interest rate decisions of the year, following the March meeting and before the sessions in September and December. In the run-up, a remarkably clear expectation has emerged among major Swiss market observers: the SNB is likely to leave the key interest rate at 0.0 percent. Both the economists of Zürcher Kantonalbank and the analysts at Raiffeisen Schweiz and Hypothekarbank Lenzburg are expecting an unchanged decision.

Why the SNB Is Expected to Wait

Since the interest rate cutting cycle of 2024 and 2025, the SNB is once again operating in the realm of zero interest rate policy. Inflation in Switzerland has been stable in the lower target band between 0 and 1 percent since the beginning of 2026, the Swiss franc has only moderately appreciated against the euro and US dollar, and economic growth remains subdued but is not slipping into recession. In this environment, the central bank has no reason for a further cut nor for a premature increase.

Interest rate hikes are not expected before 2027, and even then, only if inflation approaches the upper half of the target band. Another cut into negative territory is theoretically possible, but considered unlikely as long as the real economy remains stable and the Swiss franc does not rise sharply. In its communication, the SNB has repeatedly emphasized that it would only reintroduce negative interest rates as a last resort in the event of a significant appreciation of the Swiss franc.

What This Means for SARON Mortgage Borrowers

Money market mortgages based on SARON (Swiss Average Rate Overnight) follow the key interest rate directly. As long as the SNB stays at 0.0 percent, the SARON also remains close to zero. The effective interest rate of a SARON mortgage is made up of the compound SARON averaged over three months plus the individually negotiated bank margin, which varies by provider and creditworthiness between 0.65 and 1.4 percent. In practice, SARON borrowers currently pay interest in the range of 0.65 to 1.4 percent.

The so-called zero floor provision is important: if SARON falls into negative territory, it is set to zero for interest calculation. The bank margin is therefore not reduced by a negative reference rate. However, this mechanism currently does not apply because SARON is close to 0.0 percent. For existing SARON mortgages, the June decision is therefore likely to change nothing. New contracts will also remain in a stable corridor over the next few months.

What Fixed-Rate Mortgage Seekers Should Watch Out For

It is different with fixed-rate mortgages. Their rates are not directly linked to the SNB key interest rate, but to capital market rates, especially the swap rates for the respective maturity. These are influenced by a variety of global factors, including the monetary policy of the ECB and the US Federal Reserve, geopolitical events, and global inflation trends.

In recent weeks, swap rates for five- and ten-year maturities have risen slightly, as we have described in this article . The ten-year fixed-rate mortgage is currently being offered at average rates of between 1.6 and 1.9 percent, the five-year at 1.3 to 1.6 percent (as of 26.05.2026). If the SNB takes a more cautious or restrictive tone than expected on June 18, capital market rates could rise slightly in the short term. If, on the other hand, it confirms its wait-and-see stance, fixed mortgage rates are likely to remain stable or decrease slightly.

Locking In Before or After the Decision

For many prospective borrowers, the question of perfect timing is central. For SARON borrowers, it is largely irrelevant, as the starting point has no bearing on the interest rate, which is recalculated monthly. Those seeking a fixed-rate mortgage should watch capital market movements around the decision. In the days before an SNB meeting, the markets are often volatile as investors adjust their positions. After the decision, a clear direction usually emerges.

Anyone with a mortgage maturing in the next six to 24 months can already lock in today's rate with a so-called forward mortgage now. Banks usually charge a premium of 0.1 to 0.3 percentage points depending on lead time. When rates are stable, this insurance costs little but protects you against possible increases. Thinking through which strategy best suits your circumstances is essential. We therefore recommend seeking advice from experts.

SNB Schedule for 2026

The SNB publishes its monetary policy decisions on Thursdays at 9:30 a.m., followed by a press conference in the morning. Following the March meeting, the June decision will take place on June 18, then the September decision and finally the December session. The exact dates for the second half of the year are published on the SNB website.

Mortgage borrowers are well advised to mark these dates in their calendar. Even though 2026 is expected to be a year of interest rate stability, individual sessions may provide guidance on the medium-term direction. In particular, the December session will show how the SNB assesses the transition into 2027, the year in which, according to today's market view, the next monetary policy moves become conceivable.

Source: Swiss National Bank, Calendar of Monetary Policy Assessments.