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Refinancing calculator

Work out how much you would save by moving your mortgage to a bank with a lower interest rate. Enter the balance and the rates, and the estimated saving on your monthly payment appears below. We prepare the full analysis, with costs and bank offers, once you upload your agreement.

How much you would save — quick estimate

Estimated saving: zł/mies.

A rough estimate. We prepare the full analysis — transfer costs and bank offers — from your actual loan agreement.

Full analysis (upload your agreement) → What POLSTR changes → Overpayment calculator →
Stawka referencyjna NBP: 3,75% (stan na 2026-07-01). WIBOR 3M: 3,80% (stan na 2026-08-31).

What moving the mortgage costs

Property valuation600 zł
Mortgage entry in the land register200 zł
Transaction tax on the mortgage19 zł
Removing the old mortgage100 zł
Early repayment fee0–3%
Bridge insurance (until registration)+1,0 p.p.

How to judge whether refinancing pays

Refinancing pays off when the monthly saving covers the cost of moving within a reasonable time. The break-even point is the cost of moving divided by the saving on the payment.

The cost of refinancing a mortgage Moving your mortgage to another bank

Run it on your own numbers

Payment calculator Borrowing power Property prices

Frequently asked questions

Is refinancing worth it?

When the saving on the payment covers the cost of moving within a dozen or a few dozen months and lowers the total cost of the loan.

Is a new creditworthiness check needed?

Yes — the new bank assesses your creditworthiness again, and approval is not guaranteed.

The Lendean team · Mortgage advisers

Sources: NBP, GPW Benchmark (WIBOR), KNF, the Mortgage Credit Act. Educational material; not investment or legal advice.

Aktualizacja danych: 2026-08-31.