The legislature specifies a maximum amount you can pay into your Pillar 3a every year.
People who are affiliated with a pension fund through their employer, and who make the corresponding contributions, may pay in a maximum of CHF 6,883 for the year 2022. Self-employed persons or persons who do not reach the BVG entry threshold (annual income of less than CHF 21,510.–) are allowed to pay in 20% of the taxable income, up to a maximum of CHF 34,416 for the year 2022.