Introduction to CPF Step 1: Voluntary Medisave Account Cash Top Up Step 2: Voluntary Special Account Cash Top Up Step 3: Transfer excess OA balance into SA Step 4: Minimize transfer from SA to RA Step 5: Minimize transfer from OA to RA (Optional) Introduction to CPF What is CPF? I used to think that CPF was a no brainer. Simply contribute to it as per the rules and I’d be assured of a retirement nest egg. CPF can be pretty simple. After all, I managed to fit most of the important information of the CPF scheme in the image below. When you turn 55, you’ll have four CPF accounts. The Retirement Account will be funded first by what’s in your Special Account, and subsequently by what’s in your Ordinary Account. This is until the pre-determined “Full Retirement Sum (FRS)” has been hit....