The 50/30/20 rule explained — a simple budgeting framework

The 50/30/20 rule is a simple budgeting framework that divides after-tax (net) income into three categories: 50% for needs, 30% for wants, and 20% for savings and debt repayment. It was popularised by US Senator Elizabeth Warren in her book 'All Your Worth'.

The three categories

• 50% Needs: essential expenses you can't avoid — rent/mortgage, utilities, food, transport, insurance, minimum debt payments
• 30% Wants: non-essential spending — eating out, hobbies, subscriptions, holidays, shopping
• 20% Savings & debt: emergency fund, pension, investments, and overpaying debt beyond the minimum

Why it works

Its strength is simplicity — three categories instead of dozens. It ensures savings are prioritised (the 20% is non-negotiable) while still allowing guilt-free 'wants' spending. The percentages are a starting guide, not a rigid rule — those with high housing costs may need to adjust the ratios. Apply it with our free monthly budget template.