The reference interest rate for mortgages will remain unchanged at 1.25% as of September 2, 2026. It has been at this level since September 2, 2025.

The average interest rate for all domestic mortgage claims, which is used for calculations, is1.31% as of June 30, 2026, and is thus slightly below the value of the last survey of 1.32%.

How far away is a change?

For areduction to 1.00%, the average interest rate would have to fall below1.13%. For anincrease to 1.50%, it would have to rise above1.37%.

At its current 1.31%, the average interest rate is thus significantly closer to the threshold for an increase than to that for a further reduction. However, a short-term change cannot be directly deduced from this, as the average interest rate changes only slowly due to the entire Swiss mortgage portfolio.

The next publication of the reference interest rate will be onDecember 1, 2026.