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SmartFinanceNerd

50/30/20 Budget Calculator

The 50/30/20 budget is a simple way to allocate after-tax income: about half to needs, 30% to wants, and 20% to savings and debt payoff. Adjust the splits if your situation calls for it—this page is a free planning aid, not a strict rule.

Calculator

Inputs

Use monthly take-home pay so the buckets match money you actually have available.

Current monthly spending (optional)

Enter all three values to compare current spending to recommendations.

Needs (50%)

$3,250

Housing, utilities, minimum debt, insurance basics.

Wants (30%)

$1,950

Dining out, hobbies, subscriptions—flexible spending.

Savings (20%)

$1,300

Emergency fund, retirement, extra debt paydown.

Recommended allocation mix

Recommended vs current spending

Enter all three optional current-spending values to enable this chart.

Comparison vs current spending

Add current spending values to see over/under indicators and suggested monthly adjustments.

Frequently asked questions

Should I use gross or net income?
Use monthly take-home (after-tax) pay so the dollar targets match what hits your checking account.
What counts as needs vs wants?
Needs are obligations and basics: housing, utilities, groceries, insurance, minimum debt payments. Wants are flexible: dining out, entertainment, hobbies.
Can I change the percentages?
Yes. High-cost areas or debt payoff seasons often shift the split. The calculator accepts custom percentages that add to 100%.