In Polish: Kredyt walutowy (frankowy)
This is the word you will see in bank documents.
Definition
A foreign-currency loan is a loan granted in a foreign currency, or denominated or indexed to it, whose amount and instalments depend on that currency's exchange rate. The best known in Poland are Swiss franc mortgages (kredyty frankowe). Today a bank may grant a foreign-currency loan when most of your income or assets are in that currency.
What it means for you
With a foreign-currency loan repaid from income in złoty you carry exchange rate risk: when the złoty weakens, both the instalment and the loan balance in złoty grow. If you earn in euro, a euro loan may reduce this risk, but only a few banks offer it. For old Swiss franc loans, the situation depends on the agreement and any dispute with the bank.
Full entry in Polish, with a worked example and sources
Frequently asked questions
Can I take out a Swiss franc mortgage today?
A bank may grant a foreign-currency loan when most of your income or assets are in that currency. With income in złoty you will get a loan in złoty.
What is the difference between an indexed and a denominated loan?
In an indexed loan the amount is granted in złoty and converted into the currency. In a denominated loan the amount is expressed in the currency from the start, while the payout and repayment are usually in złoty.
What did the Polish Supreme Court rule on Swiss franc loans?
In its resolution of 25 April 2024 (III CZP 25/22) the Supreme Court addressed, among other things, the effects of unfair exchange rate clauses and settlements between the parties. Assessing a specific agreement is up to the court.
Related terms
Definitions are simplified and reflect Polish law and bank practice as of October 2026. Where every word matters, the Act and your loan agreement decide. Figures in examples are indicative and are not a bank offer. The Polish version of each entry has worked examples and sources.
Other terms in “Loan types and programmes”