The 50/30/20 rule: a simple way to split your income
Updated October 6, 2026 · By the Souski team
50% for needs, 30% for wants, 20% for savings. The 50/30/20 rule is the simplest way to split your pay. Here's how to apply it and adapt it to your situation.
How it works
The rule splits your monthly take-home pay into three pots:
- 50% for needs: what you have to pay to live and work (housing, energy, groceries, transport, insurance, required loan payments).
- 30% for wants: what makes life nicer without being essential (eating out, going out, travel, shopping, entertainment subscriptions).
- 20% for savings: emergency fund, plans, paying off debt early.
Its strength is its simplicity: three numbers to remember, and an instant sense of whether your budget is balanced.
A worked example
With €2,100 take-home pay a month:
- Needs: 2,100 × 50% = €1,050
- Wants: 2,100 × 30% = €630
- Savings: 2,100 × 20% = €420, or €5,040 over a year
Run the numbers with your own figures using our 50/30/20 calculator.
Need or want: how to decide?
Ask yourself: “If I cut this expense, could I still live and work normally?” If yes, it's a want. A few borderline cases:
- Groceries: basic food is a need, treats are wants.
- Phone plan: a plan is a need, the latest smartphone on instalments is more of a want.
- Car: essential for getting to work, it's a need. The premium model that costs twice as much is partly a want.
Adapting the rule to your situation
With high rent, especially in big cities, needs quickly go over 50%. Several variations exist:
- 60/30/10: when housing weighs heavily, you still keep 10% for savings.
- 60/20/20: you cut back on wants to protect your savings.
- 70/20/10: a tighter version, suited to lower incomes.
The exact percentage matters less than the habit: a fixed share of savings, set aside on payday.
The limits of the method
The rule gives you three big pots. It doesn't tell you how much to plan for groceries or going out, and it won't warn you when you overspend. For that, you need to split each pot into categories and track your spending through the month. Our guide How to make a budget in 5 steps explains how.
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Frequently asked questions
Who came up with the 50/30/20 rule?
It was popularised by Elizabeth Warren and her daughter Amelia Warren Tyagi in a personal finance book published in the United States in 2005. It then spread as a simple rule of thumb for splitting your income.
Does the rule work on a low income?
On a low income, needs often take more than 50%. That's not a failure: adjust the split and keep the main idea, which is setting aside a fixed share for savings every month, however small.
Do debt repayments count as savings?
Required monthly payments go in needs. Whatever you pay on top to clear a debt faster can count towards the 20%, since it improves your financial position.
This guide gives general pointers and isn't personalised financial advice.