Can a Pillar 2 pension fund buy-in reduce my taxes in Switzerland?

Yes, in many cases. Voluntary contributions (buy-ins) to your Swiss Pillar 2 pension fund are generally tax-deductible in the year they are made, making them an effective way to reduce your taxable income while increasing your retirement savings. However, buy-ins are subject to individual limits based on your pension gap, and withdrawing pension assets shortly afterwards may affect the tax deduction. Professional advice can help determine whether a buy-in is appropriate for your circumstances.