---
title: "Swiss Mortgages: SARON vs Fixed-Rate, Pension Withdrawals & Buying Process"
description: "A complete guide to Swiss mortgages — fixed-rate vs SARON, using Pillar 2 and Pillar 3a (WEF) for the down payment, and the step-by-step home buying process for first-time buyers."
date: 2026-05-03
updated: 2026-05-03
language: en
canonical: https://finch-agent.ch/blog/swiss-mortgage-saron-vs-fixed-guide
source: Finch (https://finch-agent.ch)
---

# Swiss Mortgages: SARON vs Fixed-Rate, Pension Withdrawals & Buying Process

**Quick answer:** No. WEF withdrawals are only allowed for the primary residence. If you stop using it as your main home, you must repay the withdrawn amount to your pension fund within a defined period.

Buying property in Switzerland is a marathon: high prices, strict affordability rules, and two competing mortgage philosophies. This is the practical guide.

## Affordability rules: 20% + 33%

  - **Down payment of at least 20%** of the purchase price, of which at least **10% must come from non-pension assets** (savings, gifts, securities, Pillar 3a).

  - **Total housing cost ≤ 33%** of gross income, calculated at an **imputed rate of 5%** (not the actual rate), plus 1% maintenance and 1% amortisation on the second mortgage.

  - The second mortgage (the part above 65% LTV) must be amortised within 15 years or by retirement.

## SARON vs fixed-rate

**SARON** is the daily Swiss money-market rate (successor of CHF Libor). A SARON mortgage resets every 1 or 3 months — you pay roughly the SARON compound + a margin (usually 0.7-1.0%).

**Fixed-rate** mortgages lock the interest for 2 to 15 years.

|  | SARON | Fixed |
| --- | --- | --- |
| Cost in low-rate cycles | Cheapest historically | Higher |
| Cost in high-rate cycles | Painful | Locked & predictable |
| Early exit | Easy at reset | Penalty (often steep) |
| Best when | Stable income, can absorb shocks | Tight budget, long horizon |

A common Swiss approach is to **split**: e.g. 50% on a 10-year fixed and 50% on SARON, balancing predictability and flexibility.

## Using Pillar 2 and Pillar 3a for the down payment (WEF)

Under the _Wohneigentumsförderung_ (WEF):

  - You can **withdraw or pledge** Pillar 2 (BVG) and Pillar 3a savings to buy your **primary residence**.

  - Withdrawal triggers a one-off lump-sum tax (cantonal) but lets you reach the 20% down-payment.

  - **Pledging** avoids the tax and keeps full retirement savings working — but raises the loan balance.

  - Minimum withdrawal CHF 20,000; from age 50 limited to half the balance or the value at age 50.

## Buying process — step by step

  - **Pre-approval** from your bank or a broker — confirms the loan amount you can carry.

  - **Property search** across Homegate, ImmoScout24, Comparis, plus local agents.

  - **Due diligence** — building condition, easements, land register, tax value, planned construction nearby.

  - **Reservation contract** with a small deposit.

  - **Final mortgage offer** — compare at least 3 lenders. Brokers like MoneyPark, Hypoplus or Resolve typically beat single-bank offers.

  - **Notary signing** — the public deed is signed at the cantonal notary; transfer fees vary by canton (0.5-3%).

  - **Land register entry & WEF withdrawal** — pension funds typically pay directly to the notary's escrow.

Track your mortgage rate, amortisation schedule, and remaining loan-to-value alongside your accounts in [Finch](/) — and get reminders before each fixed-rate expiry.

## FAQ

**Can I rent out a property bought with WEF withdrawal?**

No. WEF withdrawals are only allowed for the primary residence. If you stop using it as your main home, you must repay the withdrawn amount to your pension fund within a defined period.

**Is SARON cheaper than fixed-rate over 10 years?**

Historically yes on average, but with significant volatility. The 2022-2024 cycle showed how quickly SARON can rise. The choice depends on your buffer and your willingness to accept payment swings.


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Published by Finch — the Swiss personal finance app. Canonical version: https://finch-agent.ch/blog/swiss-mortgage-saron-vs-fixed-guide