Most buyers focus on “25% downpayment.”
That is incomplete.
In Singapore, the real cash requirement includes: downpayment + stamp duties + legal fees + renovation buffer + liquidity reserve.
Before calculating cash:
For most private properties:
For HDB, rules differ depending on loan type. Always confirm current MAS/HDB guidelines.
If you want the decision framework behind stamp duty (and when ABSD becomes a deal-breaker), read: BSD & ABSD explained.
BSD is payable upfront (cash or CPF). It is unavoidable entry friction.
Exact BSD is tiered. Always calculate using current IRAS schedule.
Usually smaller than BSD — but still thousands of dollars.
This is where many budgets break.
Even conservative renovation:
Renovation overshoot is a common liquidity shock. Do not treat it as optional.
Resilience Rule:
To see what interest rate movement does to your real cost (and why +0.5% matters), read: Mortgage Interest Cost in Singapore.
If buying drains you to minimal cash, your structure is fragile.
Total upfront exposure can exceed $260k+ depending on renovation and buffer.
Total capital lock-up often exceeds $450k+ before considering buffer. Absolute dollars matter more than percentages.
CPF is not free money. It is deferred opportunity cost.
| Factor | Fragile | Resilient |
|---|---|---|
| Post-purchase cash | Near zero | 6+ months buffer |
| Rate sensitivity | 0.5% breaks affordability | Comfortable margin |
| Renovation | Unplanned overspend | Budgeted + buffer |
| Holding period | Uncertain | Stable 5+ years |
The right question is not:
“How much cash do I need to qualify?”
It is:
“How much cash do I need to stay resilient for 5 years?”