The amortisation of a Hypothek determines how quickly debt falls, how the tax bill changes and whether Tragbarkeit is still met at retirement. In Switzerland, the obligation mainly concerns the 2. Hypothek: under the FINMA-recognised self-regulation of the SBVg, it must generally be repaid within 15 years or by retirement. Owners can pay directly to the bank or save indirectly via Säule 3a. The mortgage calculator, the Tragbarkeit calculator and the Swiss mortgage interest rates comparison help assess interest rate, loan-to-value and amortisation amount before concluding a mortgage.
Amortisation means repaying part of the Hypothek. This reduces the debt owed to the bank and, over the long term, also the interest burden. In Switzerland, a distinction is made between mandatory amortisation of the 2. Hypothek and voluntary amortisation of the 1. Hypothek. The 1. Hypothek has no statutory repayment obligation; whether additional repayments make sense depends on liquidity, taxes, pension provision and risk. The interest rate environment is also important: In May 2026, typical 5-year Festhypotheken were around 1.33% and 10-year ones around 1.54%. When interest rates are low, the tax and pension effect can carry more weight than rapid debt reduction.
For owner-occupied residential property, Swiss banks usually finance a maximum of 80% of the property value. Up to around 65% to 67% loan-to-value is referred to as the 1. Hypothek; the part above that up to 80% is the 2. Hypothek. Under FINMA-recognised SBVg self-regulation, this 2. Hypothek must be amortised on a straight-line basis within 15 years or by retirement, whichever occurs first. The previous deadline of 20 years was shortened as of 1 September 2014. Stricter rules apply to investment properties: at least 25% Eigenkapital and amortisation down to two-thirds loan-to-value within 10 years. For Tragbarkeit, banks usually calculate with a notional interest rate of 5% and a maximum housing cost share of around 33% of income.
With direct amortisation, the owner periodically pays a fixed amount to the bank, for example annually or quarterly. The Hypothek falls immediately, which also reduces the effective debt interest. This reduces interest rate risk and improves the debt position before retirement. The disadvantage lies in the tax effect: because less debt interest is deductible, taxable income rises. In addition, the money is tied up in the owner-occupied home and is no longer available for renovations, illness, a job change or investment reserves. For Festhypotheken, out-of-schedule amortisation should be checked in advance, because depending on the contract banks may charge an early repayment penalty.
With indirect amortisation, the Hypothek remains unchanged. The agreed amortisation amount is instead paid into a pledged Säule 3a account or into a pledged 3a pension solution. The bank accepts this balance as a future repayment, usually no later than retirement. The advantage is tax-related: the debt interest remains deductible and the 3a contribution can additionally be deducted from taxable income. For 2026, the maximum deduction for employed persons with a Pensionskasse is CHF 7'258. Self-employed persons without a 2. Säule may pay in 20% of net earned income, up to a maximum of CHF 36'288. Important: pledging does not yet reduce the debt; it only creates a repayment vehicle.
Example: purchase price CHF 1'000'000, Hypothek CHF 800'000, of which CHF 650'000 as the 1. Hypothek and CHF 150'000 as the 2. Hypothek. The 2. Hypothek must be amortised over 15 years, i.e. CHF 10'000 per year. With direct amortisation, the debt falls to CHF 650'000 after 15 years; interest costs and the tax deduction decrease each year. With indirect amortisation, the Hypothek remains at CHF 800'000, while annual payments are made into Säule 3a. An employee can pay in a maximum of CHF 7'258 on a tax-privileged basis in 2026; the remainder would have to be amortised directly or arranged differently. The key comparison is between the mortgage interest rate, marginal tax rate and 3a return.
The Eigenmietwert reform approved by the people on 28 September 2025 significantly changes the amortisation calculation. According to the EFD, the Eigenmietwert will be abolished for owner-occupied primary and secondary residences; at the same time, debt interest deductions for these properties will be eliminated and maintenance deductions removed or restricted. Implementation affects the tax change from 2028 and is fully relevant for many plans from 1 January 2029. This means indirect amortisation loses an important advantage: the permanent debt interest deduction. The 3a contribution remains tax-deductible, however. Indirect amortisation can therefore still make sense, but the gap to direct amortisation becomes smaller, especially with a low marginal tax rate or when retirement is near.
A common mistake is assuming that indirect amortisation is always better. If the 3a return after costs is lower than the mortgage interest rate and the tax advantage is small, direct amortisation can be more advantageous. Second, pledged 3a assets are often confused with debt that has already been repaid; the Hypothek remains in place until payout. Third, an unscheduled repayment on Festhypotheken can be expensive. Fourth, a Säule 3b life insurance policy is not the same as a flexible 3a solution and is often less tax-efficient. Fifth, over-amortisation ties up liquidity in the house. Multiple 3a accounts also allow staggered withdrawals and can reduce the lump-sum payout tax.