💰 50/30/20 Budget Calculator
Split your take-home pay with the 50/30/20 rule or a custom ratio, list your expenses as needs, wants or savings, and see where you are over or under.
Your monthly expenses (optional)
Listed: $2,600 of $4,500 — $1,900 not yet assigned.
What counts as a need, a want, or savings?
Needs: Rent or mortgage, utilities, groceries, insurance, minimum debt payments, transportation to work, childcare.
Wants: Dining out, streaming, travel, hobbies, shopping beyond basics, upgrades.
Savings & debt: Emergency fund, retirement contributions, investing, extra debt payments above the minimum.
What 50/30/20 Budget Calculator Does
This budget calculator splits your take-home pay with the 50/30/20 rule — half for needs, 30% for wants and 20% for savings and extra debt payments — and shows the dollar target for each part, monthly and yearly. If 50/30/20 does not fit your situation, choose 60/20/20 for a high cost of living, 70/20/10 for a tight budget, 40/30/30 for aggressive saving, or set your own percentages.
List your actual monthly expenses and tag each as a need, a want or savings, and the calculator compares them with the targets — showing where you are over, where you have room, and how much income is still unassigned. It is a quick way to see whether a budget is realistic before you commit to it.
How to Use 50/30/20 Budget Calculator
- Enter your take-home pay per month or per year
- Choose 50/30/20, another preset split, or a custom one
- Read your target for needs, wants and savings
- List your actual monthly expenses and mark each as need, want or savings
- See where you are over or under each target
Formula Used by 50/30/20 Budget Calculator
Targets
Needs = income × 50% · Wants = income × 30% · Savings & debt = income × 20%
Worked example
$4,500 take-home pay a month.
- $4,500 × 0.50 = $2,250
- $4,500 × 0.30 = $1,350
- $4,500 × 0.20 = $900
Result: $2,250 needs, $1,350 wants, $900 savings — $10,800 a year toward savings and debt.
Budget Splits Compared on $4,000 a Month
| Rule | Needs | Wants | Savings & debt |
|---|---|---|---|
| 50/30/20 | $2,000 | $1,200 | $800 |
| 60/20/20 | $2,400 | $800 | $800 |
| 70/20/10 | $2,800 | $800 | $400 |
| 40/30/30 | $1,600 | $1,200 | $1,200 |
How to Read Your Result
Deciding what is a need
A need is something you must pay to live and keep earning — basic housing, utilities, groceries, insurance, getting to work, minimum loan payments. The upgrade is the want: the basic phone plan is a need, the premium one partly a want. Being honest about this split is where most of the value of the exercise comes from.
Where savings should go first
A common order is a small emergency fund, any employer retirement match (it is an instant return), paying off high-interest debt, a fuller emergency fund of several months of expenses, then longer-term investing. Your situation may call for a different order.
Limitations & Accuracy Notes
- Works with take-home pay; it does not calculate taxes.
- Irregular expenses such as annual insurance premiums or car repairs should be converted to a monthly amount and included.
- A guideline, not financial advice.