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Annual Percentage Rate (Effektivzins)
The true annual percentage cost of a loan including all ancillary fees — calculated under a single EU-wide method, making it the only reliable yardstick for comparing offers across lenders.
Definition
The Effektivzins (annual percentage rate, APR) is the true annual percentage cost a borrower pays for a loan, taking into account every ancillary fee. Unlike the nominal rate, which captures only the bare interest on principal, the effective rate also reflects arrangement fees, discounts on payout amount (Disagio), residual-debt insurance, the repayment schedule and the interest-calculation method.
The EU legal basis is the Consumer Credit Directive 2008/48/EC (transposed into Austria's VKrG and into Germany's §6 PAngV). It prescribes a single calculation method so that offers from different lenders can be compared directly.
Calculation method
The effective rate is set such that the present value of all inbound and outbound cash flows of the loan equals zero at the payout date. Mathematically this corresponds to the internal rate of return (IRR) of the cash-flow stream from the bank's perspective:
Σ (Cashflow_t / (1 + i_eff)^t) = 0
This has no closed-form solution and must be computed iteratively (Newton-Raphson). Standard spreadsheet packages (Excel: RATE or IRR) provide the relevant functions.
An Austrian consumer-loan example
A €10,000 consumer loan with the following conditions:
- Nominal rate: 6.5% per year
- Arrangement fee: €200 (due upfront, financed in)
- Term: 60 months
- Monthly instalment: about €196
- Residual-debt insurance: €8 per month
The disclosed effective rate comes out at around 8.4% per year — almost 2 percentage points above the nominal rate. The gap is explained by the upfront fees and the insurance premium. Without residual-debt insurance the effective rate would be around 7.2%.
What the effective rate does NOT include
Despite EU harmonisation, several material items do not enter the effective rate:
- Notarial fees for the land-register entry of the mortgage
- Valuation fees for the property assessment
- Account-keeping fees on the related current account
- Prepayment penalties on later extraordinary repayments
- Rate movements on variable-rate facilities over the term
For variable-rate mortgages the disclosed effective rate is therefore only a snapshot based on the current reference rate. If the Euribor rises by one percentage point, the actual effective rate rises accordingly.
Why it matters for consumers
The effective rate is the only reliable yardstick for comparing loan offers across banks. Looking only at the nominal rate risks choosing an apparently cheap product that is in fact more expensive due to ancillary costs. The FMA has required prominent disclosure of the effective rate in all credit advertising and offers since 2018.