50/30/20 Budget Calculator

This calculator splits your monthly take-home pay with the 50/30/20 rule of thumb: half for needs, 30% for wants and 20% for savings and extra debt repayment. Enter your take-home pay to see the three amounts.

Formula

Needs = 0.50 × pay, wants = 0.30 × pay, savings and debt repayment = 0.20 × pay, where pay is take-home (after-tax) income per month.

Worked Example

$4,000 of take-home pay a month.

1. Needs = 4,000 × 0.5 = $2,000.00
2. Wants = 4,000 × 0.3 = $1,200.00
3. Savings and debt repayment = 4,000 × 0.2 = $800.00

Assumptions

• The 50/30/20 split is a rule of thumb, not a rule; adjust the shares to your situation.
• Pay is after tax.

How to read the result

The split is a starting point for a budget. Required loan payments usually count as needs; anything paid above the minimum counts in the 20%.

Limits and common mistakes

• Use after-tax pay, not gross salary.
• Irregular income: use a low, typical month.

Frequently Asked Questions

What is 50/30/20 of $4,000?

$2,000 needs, $1,200 wants and $800 savings or debt repayment.

Are loan payments needs?

Minimum required payments usually are; extra payments fit in the 20%.

Is this financial advice?

No. It is arithmetic on a common rule of thumb.

in t | Take-home pay per month | $ | 4000 | 0 | 10000000
out needs | Needs (50%) | $ | t * 0.5 | 2
out wants | Wants (30%) | $ | t * 0.3 | 2
out save | Savings and debt repayment (20%) | $ | t * 0.2 | 2