Calculator tools

Two concrete calculators

Number 1 shows whether you’re entitled to a rent reduction. Number 2 whether your rent fits your income. Move the sliders — the result updates live.

Reference rate calculator

Current net rent (CHF)

CHF

Reference rate at contract signing (%)

1.25 % today3.50 % (2008)

Result

Reduction possible

New rent

1'488 CHF

Savings / month

−312 CHF

per year

−3'744 CHF

Du hast Anspruch auf rund 17.4% Senkung. Fordere sie schriftlich beim Vermieter ein. Submit your request in writing to your landlord citing Art. 270a CO and the current BWO rate.

Current rate: 1.25 % (in force since 2 September 2025) Source: BWO

Source: VMWG Art. 13 · BWO

Affordability calculator

Net income / month (CHF)

CHF

Current rent / month (CHF)

CHF

Result

Tragbar

Recommended budget

2'167 CHF

max. 1/3 of income

Burden rate

31 %

0 %33% (rule of thumb)100 %

Source: 33% (rule of thumb)

Phase 2 · in progress

Utility cost check

Are your utility costs plausible? Comparison per m² and heating type.

soon

Notice period calculator

Last termination date, cantonal customs included.

soon