Enter your after-tax income and spending by category to see your surplus or deficit, a per-category breakdown, and how you stack up against the 50/30/20 guideline.
| Category | Amount | % of income |
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It's a budgeting guideline suggesting roughly 50% of after-tax income go toward needs (housing, transportation, utilities, insurance, and minimum debt payments), 30% toward wants (food, entertainment, and other discretionary spending), and 20% toward savings and extra debt payoff. It's a starting benchmark popularized by Senator Elizabeth Warren's personal finance writing, not a strict rule everyone must hit exactly.
The 50/30/20 guideline points to around 20% of after-tax income, but the right number depends heavily on your goals, existing debt load, and stage of life — someone aggressively paying off debt or catching up on retirement savings may target well above 20%, while someone in a high cost-of-living area may need to adjust the split to fit reality. See the Savings Goal Calculator to translate a savings percentage into a timeline for a specific target.
A deficit means you're spending more than you earn, which typically means drawing down savings or taking on more debt — not sustainable long-term. Review the category breakdown table above to see which areas are largest relative to income, since even a small percentage cut in a big category (like housing or food) usually frees up more room than a large cut in a small one. If debt is part of the picture, the Debt Payoff Calculator can help you plan a path down.
Yes — housing is treated as a core need in the 50/30/20 framework, alongside transportation, utilities, insurance, and minimum debt payments. If housing alone consumes a very large share of income (common in expensive metro areas), the 50% needs target becomes unrealistic, and the guideline is best treated as a rough benchmark to work toward over time rather than a hard rule to hit immediately.
Worked example: $5,000 monthly income with $1,400 housing, $450 transportation, $500 food, $250 utilities, $200 insurance, $300 debt payments, $200 entertainment, $500 savings, and $200 other: total expenses = $4,000, leaving a $1,000 surplus. Needs (housing + transportation + utilities + insurance + debt) = $2,600, or 52.0% of income; wants (food + entertainment + other) = $900, or 18.0%; savings = $500, or 10.0% — close to the needs target but under-saving relative to the 20% guideline.
Ready to put that surplus to work? See the Savings Goal Calculator or the Debt Payoff Calculator.