Guide · budgeting methods: The 50/30/20 Rule: How It Works, With Examples
The 50/30/20 rule splits your take-home pay three ways: half for needs, 30% for wants and 20% for savings. On €3,000 a month that’s €1,500, €900 and €600. Here’s what goes where, when to change the split, and how to set it up so it holds.
Updated 4 October 2026 · 5 min read · By the Wealtie team
Where the rule comes from
Elizabeth Warren and Amelia Warren Tyagi popularised it in their 2005 book All Your Worth. Its appeal is that it needs three numbers instead of thirty categories, and it works out of take-home pay — what actually lands in your account after tax.
What counts as a need, a want and savings
Needs — 50%
What you’d have to pay even in a bad month: rent or mortgage, utilities, groceries, insurance, transport to work, and the minimum payment on any debt.
Wants — 30%
Everything you choose: eating out, takeaway, streaming and other subscriptions, clothes beyond the basics, holidays, hobbies. A want isn’t a failure. It’s the part of the budget that makes the rest of it bearable.
Savings and debt — 20%
An emergency fund first, then retirement, then paying debt down faster than the minimum. If pension contributions come out of your pay before you see it, they already count here.
A worked example on €3,000 a month
| Part | Share | Per month |
|---|---|---|
| Needs | 50% | €1,500 |
| Wants | 30% | €900 |
| Savings and debt | 20% | €600 |
Try it with your own figure in the budget calculator.
When to change the split
The rule was written for one economy and one decade. If rent alone takes 40% of your pay, half for needs is fiction, and a budget built on fiction gets abandoned. Change the shares rather than the habit:
| Split | On €3,000 | Use it when |
|---|---|---|
| 50/30/20 | €1,500 / €900 / €600 | The default. Works when housing is a reasonable share of pay. |
| 60/20/20 | €1,800 / €600 / €600 | High-rent cities, where needs can't fit in half. |
| 70/20/10 | €2,100 / €600 / €300 | A tight year. Keep saving something, even if it's less. |
On an income that moves from month to month, work from your baseline rather than your average — see how to budget on an irregular income.
How to set it up so it holds
- Move the 20% first. On payday, transfer it to a separate savings account before anything else gets spent.
- Make needs plus wants one spending limit. €2,400 on €3,000. One number is easier to keep than two.
- Give the categories that drift their own share. Groceries and eating out are where most months go wrong.
- Check the pace mid-month, not the total at the end. By the 31st the money that would have fixed it is gone.
In Wealtie, that’s a monthly budget of €2,400 split across your categories, and a transfer of €600 to your savings account — a transfer is never counted as spending, so it doesn’t touch the budget. Budget Health compares how much of the limit is gone with how much of the month is, and says where your pace ends while there’s still time to change it.
Questions people ask
A way to split your take-home pay into three parts: 50% for needs like rent, bills and groceries, 30% for wants like eating out and holidays, and 20% for savings and paying off debt beyond the minimum. It was popularised by Elizabeth Warren and Amelia Warren Tyagi in their 2005 book All Your Worth.
Net — what lands in your account after tax. If pension contributions or other deductions come out of your pay before you see it, those already count toward your 20%.
Change the split rather than abandon it. 60/20/20 keeps savings intact by cutting wants; 70/20/10 is for a tight year. The point is a fixed share for each, decided in advance.
In Wealtie, set your monthly budget to the needs-plus-wants total (80% of take-home pay), split it across your categories, and move the 20% to a savings account as a transfer, which never counts as spending. Budget Health then warns you mid-month if your pace will take you past the 80%.
