Banks and licensed lenders are two different worlds, even though the same KNF supervises both. A bank has higher requirements, a longer procedure, but a lower RRSO. A lender approves faster, accepts a less-than-perfect profile, but the RRSO climbs.

When a bank

You have a regular employment contract or you've been self-employed for over a year. Your BIK is clean or has minor positive entries. You need 10 000 PLN or more. You can wait two-three days for a decision. Under these conditions, a bank almost always comes out cheaper.

When a KNF-licensed lender

You need the money today, not in three days. The amount is small (up to a few thousand zloty). Your BIK has minor scratches, or no track record at all. You'll pay it back in 30–60 days, not in 12 months. Vivus or Wandoo will give you a first loan at 0% RRSO if you pay on time — that is a one-off promo, repeats are pricey.

When neither

You don't know how you'll pay it back. You're taking out a loan to pay off an earlier loan („rolling"). Your monthly payments already eat more than 50% of your net income. Those are signs that the problem is not a missing loan — it's the structure of your spending or income, and a new loan will deepen it.

How to check a lender is legitimate

Look it up in the public KNF register at rpkip.knf.gov.pl. Every lender operating in Poland has to be listed there. If they aren't — don't borrow. On top of the register, the Polish anti-usury act of 18 December 2022 caps the non-interest costs that can be charged. Both rules apply at the same time.

Real 2026 cost gaps

Concrete numbers from June 2026 for the same client profile (employment contract, 5 000 PLN net income, BIK score 480). Cash loan 20 000 PLN over 36 months: PKO BP RRSO 11.5%, payment 660 PLN, cost 3 800 PLN. mBank RRSO 10.5%, payment 650 PLN, cost 3 400 PLN. Smartney (non-bank lender) RRSO 32%, payment 810 PLN, cost 9 200 PLN. Vivus (first payday free for 3 000 PLN over 30 days) — 0 PLN cost; a repeat 3 000 PLN over 30 days at RRSO 200%, cost 500 PLN.

Takeaways. A bank saves 5–6 000 PLN versus a non-bank lender on a 3-year 20 000 PLN loan. A non-bank lender only makes sense at small amounts and short terms. A first free payday — one-off, repaid on time, is a sensible bridge.

How to choose between the two, step by step

Three questions: Do you need money today or in 3 days? What is your BIK score (check at bik.pl)? How much income surplus do you have after existing payments? A bank is the answer if you can wait, your score is 400+, and after existing payments at least 30% of income is left. A non-bank lender — if any of these conditions is not met.