Hi,

a slightly different question about claiming back taxes on 3rd pillar for people taxed at source (like me) - I have searched through the various threads but could not find the answer.

I am trying to understand what is the optimal way to pay in the 3rd pillar to save taxes. Quellesteuer are withheld monthly and are calculated on the monthly taxable income (differently from people filing a tax declaration which pay on their yearly income). This system is particularly disadvantageous for people which do not have a regular income flow throughout the year. In particular lump sum paid once a year (e.g. bonus) is heavily taxed - the quellessteuer tax rate for that month will be much higher than in other months.

Now, I was wondering, are also the taxes claimed back on the third pillar calculated on a monthly basis for people taxed at source? If this is so, it is probably much better to pay the max amount (the 6600 chf) on the month when the bonus is paid in order to offset the higher taxable income and lower the rate.

If it not so, does anyone know how the amount of claimed back taxes is calculated?

Thanks a lot.

Alvise