This free 50/30/20 budget calculator splits your monthly take-home pay into needs, wants and savings, then compares it with what you actually spend. Enter your numbers: nothing leaves your browser.
Key Takeaways
- The 50/30/20 rule puts about 50% of after-tax income toward needs, 30% toward wants and 20% toward savings and extra debt payments.
- It was popularized by Elizabeth Warren and Amelia Warren Tyagi in their 2005 book All Your Worth.
- Use take-home pay (after taxes and payroll deductions), not your gross salary.
- The split is a starting point: in a high-cost area or on a low income, needs can take more than half, and that is a signal to trim wants first.
Calculate Your 50/30/20 Budget
What Counts as Needs, Wants and Savings?
| Category | Examples |
|---|---|
| Needs (50%) | Rent or mortgage, utilities, basic groceries, insurance, minimum debt payments, transportation to work, childcare |
| Wants (30%) | Dining out, streaming and subscriptions, hobbies, travel, upgrades beyond the basic version of a need |
| Savings and extra debt (20%) | Emergency fund, retirement contributions, sinking funds, debt payments above the minimum |
How to Make the 50/30/20 Rule Work
Start by tracking one normal month of spending and sorting each expense into the three groups. If needs take more than half of your income, cut wants first and treat the 20% savings as a bill you pay yourself on payday. Review the split whenever your income or rent changes.
Related guides: Top 5 Budget Apps for Beginners, Is Dave Ramsey a Charlatan? Why the “Baby Steps” Work for Some but Fail for Others, Frugal Living 101: Top Tips for Saving Money Daily, How to Stock Your Fridge on a Budget: Weekly Essentials, Two Kids vs. Three: The Frugal Parent’s Guide to Family Planning Finances, 10 Best Tools for Effective Savings Goal Setting
Frequently Asked Questions
Is the 50/30/20 rule based on gross or net income?
Net income: the take-home pay that lands in your account after taxes and payroll deductions.
Do minimum debt payments count as needs?
Yes, minimum payments are needs. Anything you pay above the minimum to clear debt faster counts toward the 20%.
What if my needs are more than 50%?
That is common in high-cost areas. Shrink wants first, keep some savings going, and look for ways to lower your largest fixed bills over time.
Is my information saved?
No. The calculator runs entirely in your browser; nothing you type is sent or stored.
Last reviewed October 2026.
This article is general information, not financial advice. Prices and deals change: check current terms before you buy. Read our financial disclaimer and editorial policy.