50/30/20 Budget Calculator

Enter your after-tax income — weekly, biweekly, monthly, or annual — and see exactly how much goes to needs, wants, and savings. Free, instant, no sign-up.

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How the 50/30/20 budget rule works

The 50/30/20 rule splits your after-tax income into three simple buckets, so you don't need a spreadsheet with forty categories to feel in control of your money:

  • 50% Needs — rent or mortgage, groceries, utilities, transport, insurance, minimum debt payments.
  • 30% Wants — restaurants, streaming, hobbies, travel, the fun stuff.
  • 20% Savings & debt — emergency fund, investing, extra loan payments, or money you're putting aside for family.

Making it stick (the hard part)

Calculating your numbers takes ten seconds — sticking to them is the actual challenge. The trick is tracking spending against each bucket as the month goes, not discovering in week four that the wants budget evaporated in week one. A budgeting app with category limits and alerts (like Spend Split) does that automatically.

50/30/20 rule FAQs

What is the 50/30/20 rule?

The 50/30/20 rule is a simple budgeting method: put 50% of your after-tax income toward needs (rent, groceries, utilities, transport), 30% toward wants (dining out, entertainment, hobbies), and 20% toward savings and extra debt payments. It was popularized by Senator Elizabeth Warren in the book "All Your Worth".

Should I use gross or after-tax income for the 50/30/20 rule?

Use your after-tax (take-home) income — the amount that actually lands in your account. If money is deducted before you receive it (like a pension contribution), you can leave it out entirely or count it toward the savings 20%.

How does the 50/30/20 rule work if I’m paid weekly or biweekly?

The percentages work on any pay schedule. Enter your weekly or biweekly paycheque in the calculator and it splits that amount 50/30/20, and also shows the monthly equivalent so you can compare against monthly bills like rent.

What if my rent is more than 50% of my income?

That’s common in expensive cities. The rule is a guideline, not a law — try a 60/30/10 or 70/20/10 variation and work back toward 50/30/20 over time, or look at the needs category for costs you can shrink. The important habit is giving every dollar a category.

Does the 20% include sending money home to family?

It depends how you see it. Regular support for family is a commitment, so many people count it under needs; others treat it as part of the savings/goals 20%. Pick one, be consistent, and budget for it explicitly — a multi-currency tracker like Spend Split makes this easy when you’re sending money across borders.

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