Quick Takeaway: The 50/30/20 rule tells you to spend 50% on needs, 30% on wants, and 20% on savings. In Singapore, use your post-CPF take-home pay as the base and bake 9% GST into your 'needs' bucket. That small shift makes the rule actually work here. 1. The Classic 50/30/20 Rule The 50/30/20 rule was popularised by US Senator Elizabeth Warren. The idea is simple: 50% of your after-tax income covers needs (housing, food, utilities, transport), 30% covers wants (dining out, s
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