Thursday, 10 September 2026
Mortgage financing in Czechia became more expensive again in September, adding pressure to housing affordability after six consecutive months of rising advertised rates.
The average mortgage offer measured by the Swiss Life Hypoindex increased to 5.51% at the beginning of September, up from 5.42% in August. The latest increase of 0.09 percentage points takes the index to its highest level since summer 2024. The index measures average advertised mortgage rates for loans with a loan-to-value ratio of up to 80%, rather than rates ultimately agreed with individual borrowers.
The change represents a substantial reversal from the beginning of spring. In March, the index stood at 4.89%, its lowest level since April 2022. Since then, average offered rates have increased by 0.62 percentage points.
For households, that movement is becoming increasingly visible in monthly financing costs. A CZK 3.5 million mortgage with a 25-year maturity would require a monthly payment of approximately CZK 21,520 at the September rate, around CZK 1,280 more than under the March rate.
The increase also changes the outlook for the Czech residential property market. Earlier expectations that gradually falling borrowing costs would provide additional support to housing demand have weakened as longer-term market financing has become more expensive.
Mortgage pricing is not determined solely by the Czech National Bank’s policy rate. Banks also depend on longer-term funding conditions and market interest rates, while inflation expectations and international uncertainty can influence the price at which lenders are prepared to offer fixed-rate mortgages.
“The situation is different than in the period of falling market rates, when banks could relatively easily translate cheaper resources into mortgage prices while maintaining a sufficient margin,” said Jiří Sýkora, mortgage analyst at Swiss Life Select. He noted that several banks increased selected mortgage rates during August, while others left their offers unchanged.
Competition between lenders could still provide some relief during the autumn as banks seek new customers following the summer period. However, Swiss Life Select does not currently expect competition to produce a widespread return to mortgage rates below 5%. Its outlook for the coming six months is closer to stable or moderately higher rates than a significant decline.
For residential developers, the direction of mortgage rates is particularly important. Higher borrowing costs reduce the amount households can finance from a given monthly income and can influence decisions over apartment size, location and purchase timing. Developers may consequently face greater pressure to maintain sales momentum without relying on progressively cheaper mortgages to expand buyer affordability.
The impact should not automatically be interpreted as a decline in housing demand. Individual mortgage offers can differ materially from the Hypoindex average, depending on the borrower’s financial position, LTV, fixation period and relationship with the lender. Banks may also use selective discounts rather than reducing their standard mortgage rates across the board.
Nevertheless, the six-month increase marks a clear change from the conditions seen in March. Instead of financing costs gradually falling below 5%, Czech homebuyers are entering the autumn with average advertised rates above 5.5%.
That leaves the residential market facing a more demanding affordability equation. Housing prices, household incomes and mortgage costs will increasingly determine how much buyers can afford, while developers will have to assess whether sales can remain resilient if borrowing costs stay around current levels.
The next few months will show whether September represents the upper end of the current mortgage-rate cycle or another stage in a longer period of expensive housing finance. For Czech residential property, the distinction matters: a stabilisation around current levels would provide buyers and developers with greater certainty, while further increases would add another constraint to an already challenging housing affordability environment.
Source: CTK
