It is allowed for persons to have several 3rd pillar accounts at the same time. As assets from 3rd pillar accounts only can be withdrawn as a whole sum, it makes sense to distribute the money onto different 3rd pillar products. This offers more security concerning the provision providers. But, above all, you can avoid too high progressive taxation by withdrawing the assets in different fiscal years. The ordinary withdrawal of assets from Pillar 3a is already possible five years before the ordinary retirement age.