Monthly income vs expenses with a 50/30/20 health check
A budget isn't a punishment — it's a monthly profit-and-loss statement for your household. This planner gives you the two numbers that matter (are you positive or negative, and by how much) and then grades the shape of your spending against the most widely used budgeting benchmark, the 50/30/20 rule.
Popularized by Senator Elizabeth Warren in All Your Worth, the rule allocates take-home pay into three buckets:
| Bucket | Target | What belongs in it |
|---|---|---|
| Needs | 50% | Housing, utilities, groceries, transport, insurance, childcare — bills you can't skip without consequences |
| Wants | 30% | Dining out, entertainment, subscriptions, shopping, travel — everything enjoyable but optional |
| Savings & debt | 20% | Emergency fund, retirement, investing, and debt payments beyond minimums |
The percentages are guardrails, not laws. In high-cost cities the needs bucket routinely runs 55–60%; the point of the rule is to notice which bucket is squeezing the others, and to protect the 20% savings share deliberately instead of saving whatever happens to be left.
For calibration, the Bureau of Labor Statistics' Consumer Expenditure Survey puts the average American household's spending roughly here:
| Category | Share of spending | Monthly (avg. household, ~$6,440/mo) |
|---|---|---|
| Housing | ~33% | ~$2,120 |
| Transportation | ~17% | ~$1,090 |
| Food (groceries + dining) | ~13% | ~$830 |
| Insurance & pensions | ~12% | ~$780 |
| Healthcare | ~8% | ~$510 |
| Entertainment & other | ~17% | ~$1,110 |
If one of your rows is far above these shares, that's not automatically a problem — but it is where a stressed budget should look first, because the big categories move the needle in a way canceling one streaming service never will.
Take-home (net). Taxes and payroll deductions never reach your checking account, so budgeting gross overstates what you can spend. If retirement contributions come out pre-paycheck, count them as savings you've already banked.
A need has consequences if skipped: shelter, utilities, groceries, transport to work, insurance, minimum debt payments. The honest test: dining out is a want even though food is a need. This planner pre-sorts categories but your judgment rules.
It's a strong default: roughly enough to build an emergency fund and stay on track for retirement over a career. Early or ambitious savers often push 30–50% — see the FIRE calculator — while tight seasons may allow less. The key is that it's deliberate.
Common in expensive metros. First protect some savings share (even 10%), then treat it structurally: housing and transportation are the two levers big enough to fix the ratio.
No — everything computes locally in your browser and vanishes when you close the tab. Use print-to-PDF or screenshots to keep a copy.
Savings-and-debt contributions plus any unallocated surplus, divided by take-home income. Leftover money counts because it's available to save — the verdict nudges you to automate it before it disappears.
Yes, with one adjustment: enter your average month conservatively (many freelancers use their lowest recent month), and treat anything above it as bonus savings.
The best budget is the one you actually revisit. Bookmark this planner, re-enter your real numbers at each month's end, and let the 50/30/20 bar tell you the story — it takes two minutes and beats every app that wants your bank login to do the same arithmetic.