A budget is only as good as its list of categories. Leave one out and the money still leaves, just without a name, and the month ends with two hundred dollars you cannot account for. This page starts you with ten common budget categories, lets you shape the list to your own life, and then shows where your money actually went against the plan.

The categories most budgets need

Most household budgets can be built from the same short set:

• Housing: rent or mortgage, HOA dues and property tax.
• Utilities: electric, gas, water, trash, internet and phone.
• Food: groceries, lunches out, restaurants and coffee.
• Transportation: a car payment, gas, transit fares and parking.
• Insurance: health, car, home or renters, and life.
• Debt: minimum payments and anything extra on cards and loans.
• Savings: an emergency fund, retirement and goals of your own.
• Personal: clothes, haircuts, streaming and fun money.
• Giving: donations, tithing and help for family.
• Irregular costs: the bills that come once or twice a year.

Pets, childcare, kids and health are common additions once they are big enough to watch on their own.

For a sense of scale, the Bureau of Labor Statistics found that in 2024 the average American household put about a third of its spending into housing, about a sixth into transportation and about an eighth into food. Those are averages across very different lives, not targets. Your list should describe your month, not the nation's.

How this page works

Start with what comes in each month after taxes, then go down the list. Peel off any category you never pay for, rename any that deserves a truer name, and tear a new strip for anything missing. The page holds fourteen categories, because a list you can read at a glance is a list you will actually check.

As you give each category a monthly amount, it becomes a strip of washi tape. Across the top of the page, every strip is laid end to end against a line that marks your take-home pay, so you can see at once how much of the month is spoken for and how much is still loose. In the list, each strip is sized against the biggest, so the two or three categories carrying most of the weight stand out.

The costs a monthly list forgets

The hardest categories to budget are the ones that skip most months. Researchers who studied how people predict their own spending found that we budget ordinary purchases fairly well but underestimate exceptional ones, partly because each car repair or wedding gift feels like a one-time event instead of part of a pattern that returns every year. A related line of work found that people underpredict their future expenses because a typical month is what comes to mind, and that asking why the coming month might be different brings the unusual costs back into view.

This page asks that question for you. Your categories point to the irregular costs that usually travel with them: a car brings repairs and registration, insurance brings deductibles, a pet brings vet visits. Any that are missing wait at the bottom as rolls of tape. Tap one, write what it costs in a year, and the page sets aside a twelfth of it each month inside a single strip for irregular costs. If a roll does not apply to you, mark it not mine and it steps aside. When those yearly costs deserve a savings plan of their own, the Sinking Funds Shelf gives each one a jar and a date.

Checking last month against the plan

A plan stays a guess until you hold it up against what happened. The Consumer Financial Protection Bureau suggests tracking a full month of spending instead of a week or two, since a whole month reveals the small purchases that add up and sometimes pull against your priorities.

Switch the page to last month and copy in what each category really took from your bank and card statements. A pen line appears under each strip. Where a category ran over, the line runs past the tape in red; where it came in under, a dashed line marks the room that was left. The reading below ranks where most of the money went, names the categories that ran over or came in under, and totals the month against the plan.

What it can and cannot tell you

The page sorts and adds up your own numbers. It does not know your debts, your goals or your tax situation, and nothing on it is financial advice. If you want a rule of thumb for dividing your pay, the 50/30/20 Budget is a common place to begin, and if you would rather give every dollar a job before the month starts, the Zero-Based Budget is built for exactly that.

When to use it

January is the natural moment for it, and it works just as well after a raise, a move or a new bill. Set up your list once, then come back each month with your statements and write in what really happened. Three months of pen lines will tell you more about your own spending than any national average can.