The 50/30/20 rule, explained

The 50/30/20 rule is a shortcut, not a law: 50% of net income on needs, 30% on wants, 20% on savings and debt. Here's when it works — and when to bend it.

Needs are non-negotiable: rent, groceries, insurance, transport to work. Wants are lifestyle: streaming, restaurants, hobbies. The last 20% is savings, investing and debt repayment beyond the minimum.

It works best on stable middle incomes with reasonable housing costs — roughly where rent stays under a third of net pay. Below that it's easy; above, the maths breaks.

In high-cost cities, needs alone often eat 60–70%. Pretending otherwise pushes people into debt. Adjust to your reality: 70/20/10 in expensive years, 50/20/30 when saving hard for a goal.

Tag each category as need, want or savings. KRONO shows the live split against your actual spending — no manual maths, just a clear picture of where you actually land.

Is rent a need or a want? The minimum you'd pay for adequate housing is a need. Any lifestyle premium above that is a want.

Does debt repayment count as savings? Above-minimum payments do — they build net worth exactly like savings. Minimum payments belong in needs.

Should investing come before an emergency fund? No — build a one-month buffer first, then split the 20% between emergency fund and investing.