If you’re planning to take out a loan in Poland, a consumer loan, a mortgage, or even a quick “chwilówka” payday loan, you’ll come across the abbreviation RRSO. It’s the key figure for comparing what a loan really costs, and it’s not the same thing as the interest rate advertised in the offer.

What is RRSO

RRSO stands for the Polish term Rzeczywista Roczna Stopa Oprocentowania: literally, “actual annual interest rate.” In practice, this is the total cost of credit, expressed as a percentage of the loan amount on an annual basis, factoring in every mandatory cost, not just the interest itself.

In other languages, the same concept is known as:

  • English: Annual Percentage Rate (APR);
  • Russian (informally, borrowing the concept): Полная стоимость кредита (ПСК), “total cost of credit.”

RRSO in its current form has applied since September 2012, when the Consumer Credit Act* was amended to bring Polish law in line with EU Directive 2011/90/EU.

*Act of 12 May 2011 on Consumer Credit (Journal of Laws 2011, No. 126, item 715): original text on the Sejm’s website.

The Act officially defines RRSO as “the total cost of credit borne by the consumer, expressed as an annual percentage of the total credit amount.”

RRSO vs. the nominal interest rate

Don’t confuse RRSO with the plain Polish term stopa oprocentowania (nominalna): the nominal, headline interest rate.

  • Nominal interest rate covers only the interest charged on the borrowed capital, essentially, the “price of money” the lender charges for the loan.
  • RRSO adds the nominal rate plus every additional cost tied to getting and servicing the loan, including:
  • the loan origination fee (prowizja);
  • mandatory loan insurance;
  • application, account-servicing, and other fees the lender requires as a condition of the offer.

That’s why RRSO is always equal to or higher than the nominal rate, never lower.

Taking out a loan in Poland? Read more nuances in our article “Getting a loan in Poland” (currently available in Russian).

A common misconception is that Poland’s “anti-usury act” (ustawa antylichwiarska) sets a hard percentage cap directly on RRSO. In fact it doesn’t. Instead, it caps the two components that RRSO is built from, and those two caps indirectly limit how high RRSO can legally go:

1. Maximum interest (odsetki maksymalne), Art. 359 § 2¹ of the Civil Code:

Maximum interest = 2 × (NBP reference rate + 3.5 percentage points)

In other words, the maximum contractual interest rate can’t exceed twice the statutory interest rate (odsetki ustawowe = NBP reference rate + 3.5 pp). For example, if the NBP reference rate were 3.75% (always check the current rate at nbp.pl), statutory interest would be 7.25% a year, and the maximum contractual rate would be 14.5% a year.

2. Maximum non-interest costs of credit (MPKK, maksymalne pozaodsetkowe koszty kredytu), for consumer credit (generally up to roughly PLN 255,550):

  • for loans longer than 30 days: MPKK ≤ 10% of the loan amount + 10% of the loan amount per year of the agreement’s term, capped overall at 45% of the total loan amount;
  • for loans up to 30 days (payday-style chwilówki): MPKK ≤ 5% of the loan amount for the whole term, a much tighter cap designed specifically for short-term loans.

For private, person-to-person loans (outside a bank or licensed lender), a separate, narrower limit applies: non-interest costs can’t exceed (number of days of the loan ÷ 365) × 20% of the loan amount, capped at 25% of the loan amount overall.

Bottom line: there’s no single hard percentage “ceiling” on RRSO itself in Polish law, but it’s indirectly capped through the maximum-interest and maximum-non-interest-cost rules. Together, they set the practical upper bound for how high RRSO can be at a legally licensed lender.

How to find out a loan’s RRSO

Under Polish law, RRSO must be disclosed for every loan offer, by a bank, a credit union (Kasa spółdzielcza), or any other licensed lender (firma pożyczkowa).

The lender must disclose RRSO to the consumer already at the advertising stage: whether it’s a radio spot, a TV commercial, a billboard, or an online ad.

If you’re not sure about a specific offer, use one of the online RRSO calculators available (e.g., on totalmoney.pl or bankier.pl) to compare the real cost of several loans side by side.

Example: why RRSO matters more than the headline rate

Say bank A and bank B both offer a similar PLN 20,000 consumer loan over 24 months, and their ads only mention the nominal annual rate:

  • bank A: 6% a year;
  • bank B: 7% a year.

At first glance, bank A looks cheaper, with lower payments. But the full picture only appears once you add RRSO:

  • bank A: 6% a year, RRSO: 20%;
  • bank B: 7% a year, RRSO: 10%.

It turns out bank A’s offer hides significant extra costs (for instance, expensive mandatory loan insurance), making the real cost of the loan almost double that of bank B’s.

Term length matters too: longer loans (like a 25-30-year mortgage) usually have a lower RRSO than a short-term consumer loan, because one-off fees are spread over a longer period. Payday loans (chwilówki), on the other hand, can carry an RRSO several times (sometimes even dozens of times) higher than a bank loan, since you’re paying a high price for borrowing a small amount for a short time.

FAQ

Is RRSO always higher than the nominal interest rate? Yes, except for the theoretical case of a loan with zero additional fees, where RRSO equals the nominal rate. In practice, RRSO is almost always higher.

Is there a specific percentage above which RRSO becomes illegal in Poland? There’s no direct percentage cap on RRSO itself. But the components it’s built from (interest and non-interest costs) are each capped separately (see above), so an extremely high RRSO from a bank or a licensed lender is rare (it’s more typical of unregulated, illegal lenders).

What should I do if a loan’s RRSO looks suspiciously high? Compare the offer using an independent RRSO calculator, and if you have doubts about the lender’s legitimacy, consult a specialist before signing anything.

Bibliography and legal basis

  • Act of 12 May 2011 on Consumer Credit (Journal of Laws 2011, No. 126, item 715), as amended (including the so-called “anti-usury act”): RRSO definition, maximum non-interest costs of credit.
  • Civil Code, Art. 359 § 2 and § 2¹: statutory and maximum interest.
  • EU Directive 2011/90/EU: harmonising the RRSO calculation method across the EU.
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Author: MojaFirma team.

This article is for informational purposes only and does not constitute legal advice. Every situation depends on the specific contract and individual circumstances. If something about your own situation isn’t quite clear, feel free to book a free consultation with our team.