50/30/20 Budget Calculator
Enter your monthly after-tax income to split it into needs, wants, and savings using the 50/30/20 rule. You can customize the percentages if a different split fits your plan better.
Enter your take-home pay
Your monthly take-home pay after taxes and deductions.
Splitting $5,000.00 of take-home pay across needs, wants, and savings.
- Needs (50%)
- $2,500.00
- Wants (30%)
- $1,500.00
- Savings & debt (20%)
- $1,000.00
How the 50/30/20 rule works
The 50/30/20 rule is a simple budgeting framework: about 50% of your after-tax income goes to needs, 30% to wants, and 20% to savings and extra debt payments. Needs are essentials such as housing, groceries, utilities, and minimum debt payments. Wants are lifestyle spending like dining out, subscriptions, and travel. The final slice goes to building savings and paying down debt faster. Each amount is simply your income multiplied by its share.
Needs = Income × (Needs% ÷ 100)Wants = Income × (Wants% ÷ 100)Savings & debt = Income × (Savings% ÷ 100)- Income
- Monthly after-tax income
- Shares
- Needs, wants, and savings percentages, summing to 100%
$5,000 a month at 50/30/20
Suppose your monthly after-tax income is $5,000 and you use the standard 50/30/20 split. Needs come to $2,500, wants to $1,500, and savings and debt to $1,000. Adjust the percentages in the advanced options if your situation calls for a different balance — as long as the three shares still add up to 100%.
This is an educational guideline, not a personalized financial plan.
What this calculator assumes
- Income entered is after-tax take-home pay, not gross pay.
- The three percentages must sum to exactly 100%, or the split cannot be calculated.
- Categories are guidelines — how you classify a given expense as a need or a want is up to you.
- Money values are rounded to the nearest cent for display.
50/30/20 budget FAQ
Should I use gross or take-home income?
Use after-tax take-home pay. The 50/30/20 rule is built around the money that actually reaches your account, since taxes and payroll deductions are already handled before you budget.
What if 50/30/20 doesn’t fit my life?
The percentages are a starting point, not a mandate. In high-cost areas, needs may exceed 50%. Use the advanced options to set a split that reflects your reality, keeping the three shares at 100% in total.
Sources and review notes
- U.S. Consumer Financial Protection Bureau — Budgeting guidance
- Financial Consumer Agency of Canada — Making a budget
Methodology last checked Jul 14, 2026. Formula implementation is covered by deterministic unit tests. No financial professional review is claimed yet.