Finance · Budgeting

50/30/20 Budget Calculator

Split your monthly take-home pay into needs (50%), wants (30%), and savings (20%) using the popular 50/30/20 rule. Drag the slider and the dollar amounts update instantly.

Monthly after-tax income$4,000

Use your take-home pay — the amount that actually lands in your bank account after taxes and deductions.

Monthly take-home

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Split by the 50/30/20 rule.

Needs (50%) —

Wants (30%) —

Savings & debt (20%) —

Annual savings at 20%

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What is the 50/30/20 rule?

Flat illustration of a pie chart split into three slices beside a wallet and coins — representing income divided into needs, wants, and savings. — Three buckets, checked at a glance: half to needs, a third to wants, a fifth to savings.

The 50/30/20 rule is a simple budgeting framework popularized by Senator Elizabeth Warren. You divide your after-tax income into three buckets: 50% for needs, 30% for wants, and 20% for savings and debt repayment. Its appeal is simplicity — no tracking dozens of categories, just three targets you can check at a glance.

Needs vs wants vs savings

Needs are essentials you can't skip: housing, utilities, groceries, insurance, transport, and minimum debt payments. Wants are lifestyle choices like dining out, streaming, and travel. Savings covers your emergency fund, retirement contributions, investments, and any extra debt payoff beyond the minimums. If your needs run above 50% — common in high-cost cities — trim wants or boost income rather than skipping savings.

Tip: Automate the 20% transfer on payday so it happens before you can spend it. Paying your future self first is what makes the rule actually work.

Frequently asked questions

Is the 50/30/20 rule actually good?

It's a solid starting framework, especially if you've never budgeted. It's simple enough to stick with and ensures you save something every month. In high-cost areas your needs may exceed 50%, so treat the ratios as flexible targets rather than strict rules.

What counts as a need vs. a want?

Needs are essentials you'd struggle without: housing, food, utilities, insurance, transport, minimum debt payments. Wants are things that improve life but aren't essential: dining out, entertainment, travel, upgrades. When unsure, ask whether you could pause it for a few months without real consequences.

What if I can't save 20%?

Start with whatever you can, even 5%, and increase it as income grows or debts shrink. The habit matters more than the exact percentage. Automating the transfer on payday makes the savings happen before you can spend it.

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Written & reviewed by Chase Bennett, President of CalcHeadquarters

Every calculator is built from published formulas and authoritative sources, then independently checked for accuracy before it goes live. Last updated July 2026. Read our editorial policy & methodology.