Budget

A budget is a plan set in advance for money coming in and going out. Where an expense log records what you already spent, a budget sets the limit before you spend. The reversed order is what makes it work.

The best-known framework is the 50-30-20 rule: half of income to necessities such as housing and food, 30% to discretionary spending, and 20% to saving and debt repayment. The exact ratio matters less than splitting into three blocks.

Budgets usually fail because they are too detailed. Twenty categories collapse within days. Starting with three — fixed costs, variable costs and saving — captures most of the benefit.

The trick that makes it stick is paying yourself first. Rather than saving what is left, move the money out on payday and live on the rest. The budget then holds without relying on willpower. A budget is not a tool for spending less but for spending without guilt. Once the limit is set, everything inside it can be enjoyed freely.