50/30/20 Budget Calculator
Turn your paycheck into three numbers you can actually live by, and see where your real spending drifts from the plan.
Updated October 2026
| Category | Weekly | Monthly | Yearly |
|---|---|---|---|
| Needs | $554 | $2,400 | $28,800 |
| Wants | $332 | $1,440 | $17,280 |
| Savings | $222 | $960 | $11,520 |
What is the 50/30/20 rule?
Popularized by Senator Elizabeth Warren in *All Your Worth*, the 50/30/20 rule splits after-tax income into three buckets: 50% needs, 30% wants, and 20% savings and debt payoff. It's deliberately simple. Instead of tracking 40 categories, you track three, and the ratios flag problems fast: if needs are eating 70% of your pay, no amount of skipping lattes fixes it; the housing or transportation cost is the issue.
What counts as a need, a want, and savings
- Needs (50%): rent or mortgage, utilities, groceries, insurance, transportation to work, childcare, minimum payments on debt, prescriptions. The test: would skipping it have serious consequences within a month?
- Wants (30%): restaurants and takeout, streaming and subscriptions, hobbies, travel, gifts, clothing beyond basics, upgrades (a nicer phone, a bigger apartment than you need).
- Savings (20%): emergency fund, retirement contributions beyond the employer match already taken from your paycheck, extra debt payments above the minimum, investing, saving for a house.
Gray areas are fine. Groceries are a need; the fancy cheese is a want. Don't agonize; just be consistent.
Adjusting the ratios
50/30/20 is a starting point, not a law. In expensive cities, needs often run 55%–65% and wants have to shrink. If you're aggressively paying off debt or behind on retirement, try 50/20/30. Early-retirement savers often target 50/10/40. Use the sliders to set your own split; the calculator keeps the three summing to 100%.
One rule of thumb that survives every variation: savings should never be what's left over. Set the transfer up to happen the day you're paid, then live on the rest.
Making it stick
Enter what you actually spent last month in the comparison fields (pull the numbers from your bank app's spending summary). The table shows the gap in each bucket, and the calculator tells you if you're running a surplus or a deficit. Revisit monthly; your inputs are saved in your browser so it takes two minutes. Pair it with the savings goal calculator to give the 20% a concrete target.
Frequently asked questions
Should I use gross or net income for 50/30/20?+
Net (take-home) pay, after taxes and payroll deductions. If your 401(k) contribution comes out of your paycheck, you can count it toward the 20% savings bucket.
Is 50/30/20 realistic in a high-cost city?+
Often not exactly. Rent alone can be 40% of take-home in New York or San Francisco. Use the sliders to set needs at 60% and shrink wants; the important thing is to protect the savings bucket.
Do minimum debt payments count as needs?+
Yes. The minimum you're contractually obligated to pay is a need. Anything extra you pay to get out of debt faster counts as savings.
How is this different from zero-based budgeting?+
Zero-based budgeting assigns every dollar to a specific category before the month starts. 50/30/20 is looser: three buckets, less tracking. Many people start with 50/30/20 and move to zero-based if they want more control.