I am in the fortunate position of being able to pay excess money into my 2nd pillar (BVG) each year to reduce my tax burden (saves me 15-20k tax per year). I hope to do the same this year.

However, I also plan to buy a house this year using cash from my 3rd pillar accounts as part of the deposit.

Has anyone any knowledge/experience, whether by withdrawing from my 3rd pillar accounts in the same year would affect the tax reduction I would normally expect this year from paying into my 2nd pillar.

Thanks.