In that case, your jobs are not stable. Best is to buy a hdb resale flat and pay it in full. You can easily use your $300k cash and CPF to buy a 3 room resale flat paid in full. In this way, if you both lose your jobs, you still have a roof over your head. Many people working in the finance sector just live in hdb flats as their jobs are not secure. Today you could be happily earning $400k pa, the next day you could be jobless. This is the reality.