50/30/20 Budget Calculator

Split your monthly after-tax income into 50% needs, 30% wants and 20% savings or debt payoff.

Calculate Your 50/30/20 Budget

Your take-home pay after taxes, not your gross salary.

Rent, utilities, groceries, transport, minimum debt payments.

Dining out, streaming, shopping, travel, hobbies.

Emergency fund, retirement, and payments above the minimum.

Needs target (50%)
Wants target (30%)
Savings and debt payoff target (20%)
Total actual spending entered
Income left unallocated

Enter your actual spending above to unlock the comparison table below it. Targets are a starting point, not a law.

Your Spending vs. Target

Category Target Your actual Your share Over or under target
Needs (50%)
Wants (30%)
Savings and debt payoff (20%)
Total

A category shown as over target is not a failure on its own. If needs are over 50%, the fix is usually lower fixed costs or higher income, not cutting wants to zero.

How the 50/30/20 Rule Works

The 50/30/20 rule, popularized by Elizabeth Warren and Amelia Warren Tyagi in their 2005 book All Your Worth, divides your monthly after-tax income into three buckets. Half goes to needs, just under a third to wants, and a fifth to savings and debt repayment. Its strength is simplicity: you only need to sort spending into three categories, not track dozens of line items.

Needs target = after-tax income × 0.50
Wants target = after-tax income × 0.30
Savings and debt payoff target = after-tax income × 0.20
Actual share = actual spending in a category ÷ after-tax income × 100

What Counts as Needs, Wants, and Savings?

Category Includes Does not include
Needs (50%) Rent or mortgage, utilities, groceries, basic transport, health insurance, minimum debt payments, required childcare Dining out, premium subscriptions, upgraded phone plans
Wants (30%) Dining out, streaming and subscriptions, shopping beyond basics, travel, hobbies, gym upgrades Groceries, rent, minimum payments
Savings and debt payoff (20%) Emergency fund, retirement contributions, extra debt payments above the minimum, investments Minimum debt payments, which count as needs

Worked Example: $5,000 a Month After Tax

Category Calculation Monthly target
Needs (50%) $5,000 × 0.50 $2,500.00
Wants (30%) $5,000 × 0.30 $1,500.00
Savings and debt payoff (20%) $5,000 × 0.20 $1,000.00
Total $5,000.00

Try a comparison in the calculator: on $5,000 a month, if you actually spend $2,800 on needs, $1,400 on wants and $800 on savings, your shares are 56%, 28% and 16%. Needs run $300 over target, wants run $100 under, and savings run $200 under — a clear, small set of moves to close the gap.

What If Your Needs Are Over 50%?

This is common in high-cost cities, where rent alone can eat a large share of take-home pay. Treat it as a signal about fixed costs, not as a reason to abandon budgeting. Options include renegotiating rent at renewal, refinancing a loan, cutting a car payment, or raising income. Until needs fall, you may run a temporary split such as 60/25/15 and work back toward 50/30/20 as costs change. Do not fund the gap with credit-card debt, which turns a tight month into a lasting one.

How to Use the 20% Bucket

Put high-interest debt first inside the 20% bucket, because its interest rate usually beats any savings return. Once expensive debt is cleared, split the bucket between an emergency fund and retirement or other long-term saving. Minimum debt payments stay in needs; only payments above the minimum belong in the 20% bucket. For a payoff plan, use the debt payoff calculator, and to find your take-home figure, use the paycheck calculator.

Frequently Asked Questions

After-tax income. Use your take-home pay — what actually lands in your account after taxes. Budgeting from gross pay overstates what you have to spend and makes every bucket look short.

In needs, because missing them carries real consequences. Only extra payments above the minimum count toward the 20% savings and debt payoff bucket, since they build your financial position like a deposit does.

Run the rule on your average after-tax income over the last three to six months, or on your lowest typical month for a conservative plan. In a high month, send the surplus straight to the 20% bucket before lifestyle spending absorbs it.

Yes. The rule is a template, not a law. High housing costs often push needs above 50%, and aggressive savers may push savings above 20%. Keep the discipline of three buckets and a savings floor you can actually sustain.

It is a target to work toward, not a pass-or-fail test. Starting at 10% and raising it by one point every few months beats aiming at 20%, missing, and quitting. Automate the transfer on payday so the bucket fills before wants compete for it.

Yes. Add up the household after-tax income and all household spending, then apply the same three buckets. Joint needs such as rent and groceries are needs; individual wants still sit in the shared 30% bucket.
Disclaimer: Estimates only — not financial advice. The 50/30/20 rule is a budgeting guideline popularized by Elizabeth Warren and Amelia Warren Tyagi. Adjust it to your circumstances and verify figures with a financial professional if needed.

Scroll to Top
Featured on FreeStartupDirectoriesListed on Tool Index