Budget Calculator

Enter your monthly take-home pay and this budget calculator splits it using the popular 50/30/20 rule – needs, wants, and savings – so you can see where every dollar should go. It runs in your browser, with nothing saved.

How the budget calculator works

The 50/30/20 rule divides your after-tax income into three buckets: 50% for needs, 30% for wants, and 20% for savings and extra debt payments. This budget calculator applies those percentages to the income you enter, and you can adjust the splits to fit your situation. It is a simple starting framework, not a rigid rule.

Estimates for general information only; not financial advice. Your ideal split depends on your cost of living, goals, and debts.

A worked example

Say your monthly take-home pay is $5,000. The 50/30/20 rule sets aside $2,500 for needs - housing, utilities, groceries, minimum debt payments, and transport - the essentials you cannot skip. Be honest about what truly belongs here: a gym membership or streaming bundle is a want, not a need, even when it feels essential, and misclassifying wants as needs is the most common way budgets quietly overshoot.

That leaves $1,500 for wants like dining out, subscriptions, and hobbies, and $1,000 for savings and extra debt payoff. If your needs run higher than 50%, trim the wants bucket first; if you carry high-interest debt, shifting more into the savings bucket to attack it can pay off fast.

How to make the budget calculator work for you

The percentages are a guide, not a law. In high-cost areas, needs may take 60% or more, so lower the wants and savings shares to stay realistic. When paying off debt, many people push the savings bucket to 30% or higher until the balances are gone, then rebuild their cushion. A useful sequence is to build a small starter emergency fund first, then pour the savings bucket into high-interest debt, and finally grow a fuller three-to-six-month cushion once the costly balances are gone.

The federal consumer guide offers a free worksheet for mapping income against expenses, and the Federal Trade Commission covers getting out of debt when the budget is tight. Tracking a couple of months of real spending makes any budget far more accurate. Revisit the split every few months, since raises, moves, and new expenses all change what a realistic budget looks like.

Putting the savings bucket toward debt? See how fast it clears with the free Debt Payoff Spreadsheet or our debt and loan calculators.

Frequently asked questions

What is the 50/30/20 rule?

It splits after-tax income into 50% needs, 30% wants, and 20% savings and debt repayment. It is a simple way to balance essentials, lifestyle, and financial goals.

Should I use gross or take-home pay?

Use take-home (after-tax) pay for the 50/30/20 rule, since that is the money you actually control each month. This calculator assumes take-home income.

What if my needs are more than 50%?

That is common in expensive cities. Lower the wants and savings percentages to fit reality, and look for ways to trim fixed costs over time.

Can I change the percentages?

Yes. Adjust the needs, wants, and savings splits in the calculator to match your goals - for example, a higher savings share while paying off debt.

Where does debt payoff fit?

Minimum payments count as needs; extra payments come from the savings-and-debt bucket. Raising that bucket speeds up payoff.

Turning savings into debt payoff? Explore our debt and loan calculators or start with the debt payoff calculator.