Budget Calculator

This calculator turns the income you enter into a monthly planning amount and allocates that amount across needs, wants, savings, and debt. It first annualizes the pay amount using the selected frequency, then divides annualized income by twelve. Each category is monthly income × category percentage ÷ 100. The unallocated amount is the monthly income minus the three requested category amounts. The computation uses decimal-safe money arithmetic and rounds displayed money to cents. Use take-home income when your goal is a spending plan. Gross salary is before taxes and payroll deductions, while take-home income is what actually reaches your account. If your income is weekly, the calculator uses 52 payments per year; biweekly uses 26; semimonthly uses 24; monthly uses 12; quarterly uses 4; and annual uses 1. These factors describe regular pay frequency, not the timing of bonuses, overtime, refunds, or irregular contract work. For variable income, use a conservative average or build a separate reserve rather than budgeting every strong month. The familiar 50/30/20 framing assigns 50% to needs, 30% to wants, and 20% to savings or debt, but it is a starting framework rather than a rule imposed by law. Needs can include housing, food, utilities, insurance, transportation, minimum debt payments, and other obligations that keep the household functioning. Wants are discretionary choices. Savings and debt can include emergency reserves, retirement, extra principal, and other goals. Your actual percentages may need to differ because housing costs, dependents, medical bills, location, and income vary. The CFPB budgeting guide is a source for the framework, not a claim that it fits every household. A negative unallocated amount means the requested percentages add to more than 100% or otherwise exceed available monthly income. It does not mean the formula failed. A positive remainder is not automatically spendable: set aside annual insurance, repairs, taxes, school costs, subscriptions, and other sinking funds before treating it as discretionary. Debt payments deserve a consistent policy. Minimum payments may be needs, while extra principal can be tracked with savings and debt payoff. The result is a planning aid, not financial advice or a forecast of future cash flow. Use the salary calculator when you need to convert pay periods, the take-home pay calculator for an effective-tax estimate, and the personal loan calculator when a debt payment needs its own amortization schedule. Re-run the budget after a raise, benefit change, new debt, rent change, or shift in household priorities. Save the percentage assumptions beside the result so a later comparison remains meaningful. Add a dated review of annual bills, irregular income, and emergency savings so the allocation remains a living plan rather than a one-time percentage exercise. A useful review compares the plan with actual bank statements, identifies categories that repeatedly exceed their allocation, and adjusts the policy deliberately rather than treating every overrun as a failure. Separate predictable obligations from discretionary choices before adjusting percentages. A fixed bill usually changes only when a contract, rate, or household circumstance changes; a variable bill can be managed through a monthly average and a reserve. If the remainder is negative, reduce spending, increase reliable income, or change the timing of a goal instead of treating credit as available income. Keep annual costs as monthly sinking-fund amounts.