The simulation is carried out like an ordinary declaration on the basis of your documents during the year but not sent. This makes it possible to voluntarily adjust the amount of advance payments according to changes in situation (work, home, marriage, children, divorce, ...) or to opt for subsequent ordinary taxation (TOU) for workers subject to withholding tax (deadline March 31st).
The simulation entitles you to a 20% discount on your next annual declaration
(or charged CHF 40.- in addition with a tax return mandate).
You also have the Confederation's tax simulator available:



