The word "budget" makes some people think of restriction: a list of things they aren't allowed to buy. In practice a budget is simpler than that. It is a plan, made ahead of time, for where income is expected to go. This lesson describes what a budget does and four methods people commonly use to build one. None of them is the right answer for everyone, and this lesson doesn't rank them.
What a budget does (and doesn't do)
A budget connects the cash flow ideas from the Money Basics course to decisions. It typically lists expected net income for a period, usually a month, and assigns that income to categories such as housing, food, transportation, debt payments, savings and personal spending.
A budget does not have to be precise to the dollar to be useful, and it doesn't stay the same forever. Many people describe their first budget as a rough draft that gets more accurate after comparing it with what actually happened for a few months. A budget also isn't a measure of character. Overspending in a category is information that the plan and reality don't match yet.
The 50/30/20 rule of thumb
The 50/30/20 approach divides take-home pay into three broad groups: about 50% for needs, about 30% for wants and about 20% for savings and extra debt payments. On a sample take-home pay of $3,000 a month, that works out to $1,500, $900 and $600.
Its appeal is simplicity: there are only three buckets to watch. Its limits are just as clear. In areas where housing is expensive, needs alone can take far more than half of take-home pay, so the percentages are more useful as an illustration of the idea of proportions than as a target. The Tools page has a calculator that shows this split for any number.
Zero-based budgeting
In a zero-based budget, every dollar of expected income is assigned a job until income minus all assignments equals zero. "Zero" doesn't mean spending everything; savings and debt payments are jobs too. If $3,000 is expected, the plan keeps allocating, perhaps $1,200 for rent, $450 for groceries, $300 for savings and so on, until the full $3,000 is accounted for.
People who use this method often say it makes them look closely at every category. The trade-off is effort: it takes more time to set up each month, and people describe it as easier to keep up when income is predictable or when the plan is built around the lowest expected income.
The envelope method
The envelope method began with cash. Money for each spending category, such as groceries, fuel or entertainment, goes into a labelled envelope at the start of the month. When an envelope is empty, spending in that category stops until the next month, or money is moved from another envelope on purpose.
Today many people use digital versions: separate accounts, sub-accounts that some banks offer, or budgeting apps that track category balances. The core idea is the same, a visible limit for each category. People who like it often mention that it makes overspending obvious right away; others find carrying cash or managing many balances inconvenient.
Pay yourself first
"Pay yourself first" turns the usual order around. Instead of saving whatever is left at the end of the month, a set amount goes to savings as soon as income arrives, often through an automatic transfer on payday. The rest of the month's spending is planned with what remains.
This approach needs less tracking than the others, which is part of why people choose it. Because it focuses on one number, it says little about how the rest of the money is used, so some people combine it with another method.
Choosing and combining
These methods aren't exclusive. A household might use pay-yourself-first for savings, envelopes for groceries and dining out, and a loose 50/30/20 check once a quarter. When people talk about a budget that "sticks", they usually mean one that matches how they actually handle money: how often they're willing to check in, whether income is steady and how many categories they can realistically track.
A few questions people often ask when comparing methods:
- How much time each week or month will tracking take?
- Is income the same every month, or does it vary?
- Which categories have been hardest to predict in the past?
- Will other people in the household use the same plan?
The next lesson in this course looks at tracking a month of actual spending, which is the information every method relies on.
Sources and further reading
- Consumer Financial Protection Bureau, Your Money, Your Goals toolkit (includes budgeting and cash flow worksheets)
- U.S. Financial Literacy and Education Commission, MyMoney.gov