1. Booking of flat
This is the first real out-of-pocket commitment. For many buyers, it is not the heaviest payment stage, but it matters because it is the moment the process becomes financially real.
2. Sign Agreement for Lease
This is where the main staged payment starts to matter. Your loan path and CPF position heavily affect how demanding this stage feels. Getting through this stage does not automatically mean the later stages will feel comfortable.
3. Key Collection
For many buyers, this is the biggest checkpoint. The balance still due can be large, and if CPF has not built up enough by then, cash has to close the gap. This is often the point where weak planning becomes more visible.
4. Monthly mortgage after move-in
The payment journey does not end once you get the keys. If CPF each month is not enough, the shortfall becomes cash. That is why true affordability has to include the later monthly reality, not just the early-stage payments.
Use the BTO Budget Calculator to map all four payment checkpoints instead of focusing on just one stage.
