📊 Budget Calculator

Build your complete monthly budget using the proven 50/30/20 rule — 50% for needs, 30% for wants, 20% for savings and debt. Enter your real numbers to see your personalized budget plan.

Monthly Income (After Tax)

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Total Monthly Income: $4,500

🏠 Needs — Target: 50% of income

Essential expenses you can't easily cut — housing, food, utilities, transportation, insurance, minimum debt payments.

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🎉 Wants — Target: 30% of income

Non-essential spending that improves your quality of life — dining out, entertainment, subscriptions, hobbies, travel.

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💰 Savings & Debt Payoff — Target: 20% of income

Future-you money — emergency fund, retirement, investments, and extra debt payments above minimums.

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Your Budget Overview

Monthly Balance (Income − All Expenses)
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Total Income
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Total Expenses
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Needs (50% target)
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Wants (30% target)
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Savings (20% target)
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Savings Rate
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Your Budget vs 50/30/20 Target

The 50/30/20 Budget Rule Explained

Popularized by Senator Elizabeth Warren in her book All Your Worth, the 50/30/20 rule provides a simple framework for allocating your after-tax income. It's designed to be balanced — ensuring you cover essentials, enjoy life, and build financial security simultaneously.

Category% of Take-HomeMonthly ($5,000 income)Examples
Needs50%$2,500Rent, groceries, utilities, insurance, min. debt payments
Wants30%$1,500Dining out, Netflix, gym, travel, hobbies, new clothes
Savings & Debt20%$1,000Emergency fund, 401k, extra debt payments, investments

When 50/30/20 Doesn't Fit

In high cost-of-living cities (NYC, SF, Boston), housing alone may consume 40–50% of income, making the 50% target for all needs unrealistic. In that case, adjust your wants down first, not your savings. The savings rate is the most important number to protect.

Is a mortgage a "need" or a "want"? +
Your mortgage principal and interest payment is a "need." However, if you bought more house than you needed, the portion above what a basic suitable home would cost could be considered a "want." For budgeting purposes, most financial planners keep the entire mortgage payment in the needs category, but flag it if it exceeds 28% of gross income (the standard front-end DTI guideline).
How much should I have in an emergency fund? +
The standard recommendation is 3–6 months of essential living expenses. If your needs total $2,500/month, aim for $7,500–$15,000 in liquid savings. Self-employed individuals or those with variable income should target 6–12 months. Keep your emergency fund in a high-yield savings account (HYSA) earning 4–5% APY — not a standard checking account earning near 0%.
What is a realistic savings rate? +
The 20% savings rate is a good target. The US personal savings rate averages just 3–5%, meaning most Americans are far below this. Even 10% saved consistently over 30 years (at 7% return) grows to approximately 13× your annual salary. To retire early (FIRE), target 40–70%. Start where you are and increase by 1% each year — it quickly becomes habit.