Boneyard Tools

50/30/20 Budget Calculator

Enter your monthly take-home pay and see it split into needs, wants and savings by the popular 50/30/20 rule. The tool shows each bucket in dollars for the month and the year, and you can change the three percentages to fit your own plan as long as they add up to 100. Every calculation happens in your browser, so your income figure stays on your device.

How to use the 50/30/20 rule

  1. Type your monthly take-home (after-tax) income into the Monthly take-home income field.
  2. Leave the 50, 30 and 20 percentages, or change Needs %, Wants % and Savings % to your own split.
  3. Keep the Total reading 100 percent, since any other total shows a warning and stops the result.
  4. Read the Needs, Wants and Savings & debt rows to see each bucket per month and per year.
  5. Click Copy to grab the three monthly amounts as text.

Examples

5000 a month on the standard split

Monthly income 5000, split 50/30/20
Needs $2,500/mo ($30,000/yr), wants $1,500/mo ($18,000/yr), savings $1,000/mo ($12,000/yr)

4200 a month on the standard split

Monthly income 4200, split 50/30/20
Needs $2,100/mo ($25,200/yr), wants $1,260/mo ($15,120/yr), savings $840/mo ($10,080/yr)

Custom 60/20/20 split for a tight month

Monthly income 6000, split 60/20/20
Needs $3,600/mo ($43,200/yr), wants $1,200/mo ($14,400/yr), savings $1,200/mo ($14,400/yr)

Frequently asked questions

What is the 50/30/20 budget rule?

It splits your after-tax income into three buckets: 50 percent for needs, 30 percent for wants and 20 percent for savings or paying off debt. It is a simple starting framework, not a strict law.

Should I use gross or take-home income?

Use take-home (after-tax) pay, the amount that actually lands in your account. The rule assumes taxes and payroll deductions are already removed from the figure you are budgeting.

What counts as a need versus a want?

Needs are essentials you cannot easily skip, like rent, groceries, utilities, insurance and the minimum payments on any debt. Wants are the extras that make life nicer, like dining out, travel, hobbies and streaming subscriptions.

Where do debt payments go?

The minimum required payment on a loan or card is a need, since missing it has real consequences. Any extra you pay to clear the balance faster belongs in the 20 percent savings and debt bucket.

Can I change the percentages?

Yes. Set any split that suits you, such as 60/20/20 or 50/20/30, using the Needs %, Wants % and Savings % boxes. The result only appears when the three add up to 100.

What happens if the percentages do not add to 100?

The Total indicator turns amber and the tool shows a message instead of a budget, because a split that does not sum to 100 would not account for all your income. Adjust the numbers until they total 100.

How is the yearly figure calculated?

Each monthly amount is simply multiplied by twelve. So $1,000 a month of savings shows as $12,000 for the year, which makes it easy to set an annual target.

Does it work in currencies other than dollars?

The math is pure percentages, so the split is correct for any currency amount you enter. Amounts are formatted with a dollar sign, but you can read them as your own currency.

Is my income data private?

Yes. The calculation runs entirely in your browser and nothing is uploaded or saved, so your income and budget stay on your device.

Learn more

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