Type your monthly take-home pay and what you spend each month. See how it splits into needs, wants and savings against the 50/30/20 rule, and how much is left to give a job.
| Example | Monthly pay | Needs / wants / savings | Zero-based check |
|---|---|---|---|
| $4,000 a month: rent $1,300, other needs $1,100, wants $700, savings $400 | $4,000 | 60.0% / 17.5% / 10.0% | $500 left |
| $2,000 every 2 weeks, same spending | $4,333.33 | 55.4% / 16.2% / 9.2% | $833.33 left |
| $3,000 a month: rent $1,400, other needs $1,200, wants $500, savings $100 | $3,000 | 86.7% / 16.7% / 3.3% | $200 over |
| $5,500 a month: rent $1,500, other needs $1,250, wants $1,650, savings $1,100 | $5,500 | 50.0% / 30.0% / 20.0% | $0 |
Hand check, row 1: needs are $1,300 + $1,100 = $2,400, which is $2,400 ÷ $4,000 = 60% of pay (the goal is 50%, or $2,000). Wants are $700 ÷ $4,000 = 17.5%, and savings $400 ÷ $4,000 = 10%. $4,000 − $2,400 − $700 − $400 = $500 left to give a job. Row 2: $2,000 × 26 paychecks ÷ 12 months = $4,333.33 a month. Row 4 is right on 50/30/20: $2,750, $1,650 and $1,100 of $5,500.
Needs are what you must pay: rent or mortgage, food, utilities, getting to work, insurance, child care. Wants are the rest: eating out, trips, shopping, streaming (CFPB spending rule worksheet). Some things are both, like basic clothes vs designer clothes. Pick one and move on.
The CFPB's worksheet puts credit card and other debt payments with savings, in the 20% (CFPB spending rule worksheet). Your rent or mortgage stays in needs.
Give every dollar a job: take-home pay minus everything you plan to spend, save and pay toward debt should equal $0 (U.S. State Dept.). It works best with steady pay. If your pay changes month to month, build it on a low month.
Write down everything you spend for one month, then sort it into needs, wants and savings. That's step 1 on the CFPB worksheet (CFPB spending rule worksheet), and it makes the numbers above real.
HUD counts households that pay more than 30% of income for housing as cost-burdened (HUD). In 2023, 49.7% of renter households were (Census Bureau). HUD uses income before taxes, so on take-home pay your share looks higher.
In 2024 U.S. households spent $78,535 a year, about $6,545 a month. Housing was 33.4%, transportation 17.0% and food 12.9% of that spending (BLS 2024).
Facts and math only, not financial advice. The 50/30/20 rule is one rule of thumb; the CFPB says not everyone can follow it. Nothing you type is sent or saved by us (the math runs in your browser; the page link just keeps your numbers). No company pays to be on this page, and there are no partner links.
Use 50% of your take-home pay for needs, 30% for wants and 20% for savings and debt payments. The CFPB teaches it as one rule of thumb, and says not everyone can follow it.
Multiply your monthly take-home pay by 0.5, 0.3 and 0.2. On $4,000 that's $2,000 for needs, $1,200 for wants and $800 for savings and debt payments. Then sort a month of real spending into those three groups and compare.
A budget where every dollar of take-home pay gets a job, so pay minus planned spending, saving and debt payments equals $0.
Multiply one paycheck by 26 and divide by 12 to get a monthly amount. $2,000 every two weeks is $4,333.33 a month. Weekly pay: multiply by 52 and divide by 12.
HUD counts households paying more than 30% of their income for housing as cost-burdened. HUD uses income before taxes, so on take-home pay the share looks higher.
Estimates, not financial advice. Taxes, insurance, PMI and fees vary by lender, county and city; confirm with your lender, dealer and state agency before acting.
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