How do I create a budget?

To create a budget: list your monthly after-tax income, list every fixed and variable expense, subtract total expenses from income, then assign any surplus to savings or debt payoff goals. The CFPB recommends reviewing the budget every month.

A budget is a written plan that matches your income to your spending and savings intentions. The CFPB's budgeting resources describe budgeting as one of the most reliable habits for building financial stability — not because the math is complex, but because it surfaces mismatches between what you earn and what you actually spend.

Step 1 — Calculate your monthly take-home income

Use the net (after-tax) amount deposited into your account each month, not your gross salary. If your income varies (freelance, tips, hourly), use a conservative three-month average. Include all income sources: wages, side income, benefits.

Step 2 — List all expenses

Fixed expenses: rent or mortgage, car payment, insurance premiums, subscription services — amounts that don't change month to month.
Variable necessities: groceries, utilities, gas, medical copays — amounts that vary but are unavoidable.
Discretionary spending: dining out, entertainment, clothing, hobbies.
Debt payments: minimum payments are a fixed expense; any extra payment is a savings/payoff line item.

Step 3 — Subtract and assign the surplus (or fix the gap)

Subtract total expenses from total income. A positive number is your potential savings. A negative number means expenses exceed income — identify which discretionary categories to cut first. The mymoney.gov budgeting guide recommends assigning every dollar a job: savings, debt payoff, or a specific spending category — leaving no unallocated income.

Step 4 — Review monthly

Compare your planned budget against what you actually spent each month. Most people find their first budget is off in the variable-expense categories. Two to three months of tracking typically produces a budget accurate enough to rely on for goal-setting. The FTC's consumer guidance on money management emphasizes reviewing and adjusting regularly rather than treating a budget as a one-time document.

What the regulators say

The CFPB offers a free interactive budget worksheet to help consumers track income and spending categories. — CFPB
The FTC advises consumers to track every expense — including small ones — to get an accurate picture of monthly spending before making a budget. — FTC
mymoney.gov identifies creating and sticking to a budget as a key step in achieving any financial goal, including building an emergency fund or paying down debt. — mymoney.gov

Key takeaways

Start with after-tax take-home income — not gross salary.
Categorize expenses as fixed, variable-necessary, or discretionary.
Subtract all expenses from income; assign every surplus dollar to a goal.
If expenses exceed income, cut discretionary spending first.
Review and adjust monthly — the first budget is rarely accurate.