September 2026 mortgage pricing: 10‑year fixed ~4.2% and Bundesbank MFI data for foreign buyers

Where 10‑year fixed quotes stand on 20 September 2026

As of 10 September 2026, Interhyp’s market page shows 10‑year effective rates around 4.2% and a rate table with 10‑year quotes differentiated by loan‑to‑value (LTV): 3.99% (<70% LTV), 4.11% (80% LTV) and 4.38% (>90% LTV) based on offers collected for 7–13 September 2026. Interhyp’s September rate update also states that mortgage rates are above 4% and likely to stay there in the near term. Baufi24’s August wrap (published 2 September 2026) reported an average 10‑year completion rate of 4.15% for loans closed that month and cited the 10‑year Bund near 3.31% at end‑August.

What Bundesbank MFI data says—and why it differs from quotes

The Deutsche Bundesbank’s MFI interest rate statistics measure effective annual rates for new mortgage business in Germany, split by initial rate‑fixation buckets. For July 2026—the latest month available as of 4 September 2026—the published values were approximately 3.78% for initial fixation over 5 to 10 years and 3.92% for over 10 years. These are monthly nationwide averages across banks and products; they include all borrower risk bands and pricing features and are defined as the total cost of credit (APR).

ECB on 10 September 2026: context, not a steering wheel

On 10 September 2026 the ECB raised the deposit facility, main refinancing and marginal lending rates to 2.50%, 2.65% and 2.90% with effect from 16 September 2026. Mortgage pricing in Germany tracks Pfandbrief and sovereign yields rather than policy rates tick‑for‑tick, but brokers flagged that higher Bund yields through late August and early September were being passed into offers. Expect some pass‑through, but not one‑for‑one with the ECB step.

Foreign buyer? Pricing mechanics and constraints to expect

- LTV bands drive price. German lenders price mortgages in steps by LTV. Consumer guides from savings banks and independent outlets describe typical lending up to 60–80% of the lending value, with the sharpest pricing below 60%. Pfandbrief funding rules only recognise the first 60% of the conservatively determined lending value in the cover pool, which nudges banks to reserve their best spreads for low‑LTV loans.

- Residence matters. Some major lenders restrict retail mortgage offers to customers with residence and unlimited tax liability in Germany. If you live abroad, you will rely on a smaller lender set or on brokers who can place non‑resident cases.

- Maturity and amortisation. Interhyp’s current table shows ten‑year rates that rise with LTV, and most retail loans are annuities with an agreed initial amortisation (“anfängliche Tilgung”). Market monitoring shows initial amortisation around 2%–3% is common; when rates rose in 2024–2026, average initial amortisation even fell in some broker samples. A lower starting amortisation reduces the first‑year instalment but leaves a higher balance at reset—risk you must price in.

Mapping today’s quotes to your monthly budget

You can translate quotes into an initial monthly annuity using the German convention: effective interest plus initial amortisation, divided by 12. At 4.2% and 2.5% amortisation, the initial annuity is 6.7% per year. On a €400,000 loan, that is about €26,800 a year or €2,233 a month. If you achieve a low‑LTV quote like 3.99% and still amortise 2.5%, the initial factor is 6.49%—about €2,163 a month on €400,000. Conversely, at >90% LTV using 4.38% and 2.0% amortisation, the initial factor is 6.38%—€2,126 a month—but with a meaningfully higher balance left at reset. Always model the reset year balance and a stress rate before you commit; a local mortgage broker can run those scenarios.

Process, documents and two legal points to note

- Documents. Lenders will ask for ID and residence evidence, income proofs, bank statements and full property files (title extracts, plans, energy certificate, WEG minutes for condos). Interhyp maintains an up‑to‑date checklist you can use even before you have a property.

- Non‑euro income. If you earn outside the euro area, banks may either decline or add a premium; internal risk rules (MaRisk) require specific controls for foreign‑currency credit risk. Consider a euro hedge if your income is in another currency; discuss this with a bank or a licensed investment adviser.

- Early repayment right. Whatever your contract says, German law (section 489 BGB) gives you the right to terminate a fixed‑rate mortgage after ten years from full disbursement with six months’ notice, with no early‑repayment fee.

None of the above is personal advice. For loan structuring, use a German‑licensed mortgage broker; for tax, a Steuerberater; for legal review, a Notar/Rechtsanwalt.