Understanding the Initial Repayment Rate (Anfängliche Tilgung) in German Mortgages

8 min read read

One‑sentence guide: what it is, why it matters, and how to pick the right number


1 | What exactly is it?

Initial repayment rate = the percentage of the loan you plan to repay as principal in the first year.
In your contract it might read: anfängliche Tilgung 2 % p.a.
  • Usually used with a German annuity mortgage (Annuitätendarlehen) – your monthly payment is fixed.
  • That payment covers interest + principal. As the balance falls, interest shrinks and principal grows.
  • Because the percentage only applies to year 1 and then climbs automatically, we add the word "initial".

2 | Why does it matter?

ImpactExplanation
Monthly paymentHigher initial rate → higher payment
Time to debt‑freeHigher rate → principal drops faster → shorter term
Total interestRepay faster → smaller interest base → less interest paid
⏩ As of July 2025, typical 10‑year fixed rates are ~3.1 %–3.9 % (Dr. Klein, Baufi24).
With only a 1 % initial rate you might pay for 40 years; advisers now recommend ≥ 2 % as a starting point.

3 | A quick number crunch

Loan €300 000, interest 3.3 %; different initial rates (rate held constant until payoff):

Initial rateMonthly payment (€)Pay‑off time (years)
2 %1 32529.6
3 %1 57522.6
4 %1 82518.3
  • Spending €250 extra per month (2 → 3 %) knocks off 7 years.
  • Each extra percentage point typically saves 5–8 years.

4 | Why does it "grow automatically"?

  1. Payment is fixed: annuity = interest + principal
  2. Interest shrinks as the balance falls (interest = balance × rate ÷ 12)
  3. → Interest share ↓, principal share ↑, so the effective repayment rate rises month by month

The initial rate only sets your starting speed; it accelerates on its own from then on.


5 | How to choose the right initial rate?

  1. Start with cash‑flow
    • Work out a "safe" payment (mortgage + fees ≤ 30–35 % of disposable income).
  2. Higher rates → higher repayment
    • Counterbalance long‑term interest cost.
  3. Target term
    • If you want to be debt‑free in 20 years, you'll likely need ≥ 3.5–4 %.
  4. Keep flexibility
    • Most German loans allow special repayments (Sondertilgung); stash bonuses there instead of over‑stretching your monthly payment.

6 | TL;DR in one sentence

The initial repayment rate is your loan's "starting speed";
fixed payment, falling interest, rising principal – start higher, finish faster, and pay less interest overall.

Need a personalised amortisation schedule or scenario comparison? Share your loan size, fixed period and rate range – I'll crunch the monthly numbers for you!