Budget Calculator
Most budget calculators just split your income three ways and stop. This one compares the 50/30/20 ideal to what you actually spend — and shows you exactly where you're over and what to fix.
Ultimate Budget Workbook
This calculator shows you the gap. The budget workbook is where you close it — every category, every month, in a system that keeps your spending lined up with your targets instead of drifting back.
See the Budget Workbook →How the 50/30/20 budget works
The 50/30/20 rule splits your after-tax income into three buckets: 50% for needs, 30% for wants, and 20% for savings and debt repayment. It's popular because it's simple — one number, split three ways. But simplicity has limits, and the rule only helps if you check it against what you actually spend.
Needs — 50%
The things you genuinely have to pay: rent or mortgage, utilities, groceries, insurance, transportation, and the minimum payments on any debt. If these alone blow past 50%, that's usually a cost-of-living signal, not a discipline problem — which is why the targets here are adjustable.
Wants — 30%
Discretionary spending: dining out, subscriptions, hobbies, travel, the upgrades you choose. This is almost always the most flexible bucket, and the fastest place to free up money when your savings gap is wide.
Savings & debt — 20%
Your emergency fund, retirement, and any extra debt payments above the minimums. This is the bucket most people fall short on, because it's the one with no immediate consequence for skipping — which is exactly why making it visible matters.
It's a starting point, not a rule
The 50/30/20 split comes from a 2005 book, and housing costs have shifted a lot since. In a high cost-of-living area, something like 60/30/10 may be more honest. Adjust the targets to fit your reality, then use the gap view to hold yourself to the split you chose.
What is the 50/30/20 budget rule?
It splits your after-tax income into 50% needs, 30% wants, and 20% savings and debt repayment. It was popularized by Elizabeth Warren in the 2005 book All Your Worth. It's a starting framework — this calculator lets you adjust the percentages to fit your situation.
How is this different from other 50/30/20 calculators?
Most just split your income and stop. This one also takes what you actually spend and shows the gap — how many points you're over on needs or wants, or under on savings — so you know what to fix, not just what the ideal is.
What if 50/30/20 doesn't fit my cost of living?
If 50% for needs is unrealistic where you live, adjust the targets to a split like 60/30/10 and track your spending against that instead.
Should debt payments go in needs or savings?
Minimum required payments are needs. Extra payments above the minimum count toward savings and debt, since paying down debt faster builds wealth. If you're focused on payoff, the debt payoff calculator shows how fast your extra clears it.
Is this budget calculator free?
Yes — free, no ads, no signup, and it runs entirely in your browser. Nothing you enter is sent anywhere or stored.