How do I calculate my monthly budget?

Start with your total monthly take-home income — the amount deposited after taxes and deductions. Then list every expense: housing, food, transport, utilities, subscriptions, and savings. Subtract total expenses from income. A positive number means you have a surplus. A negative number means you are spending more than you earn and need to cut back.

What is the 50/30/20 budgeting rule?

The 50/30/20 rule suggests splitting your after-tax income into three parts: 50% for needs (rent, groceries, utilities, transport), 30% for wants (dining out, streaming, hobbies), and 20% for savings and debt repayment. It is a simple starting point for people who want a clear, easy-to-follow budget framework.

What is zero-based budgeting?

Zero-based budgeting means every dollar of your income is assigned a specific purpose so that income minus all expenses and savings equals zero. Nothing is left unaccounted for. You decide in advance exactly how much goes to each category — including savings — before the month starts. It requires more tracking but gives you full control over your money.

What is a good savings rate per month?

Most financial advisors recommend saving at least 20% of your monthly take-home income. Saving 10% is a reasonable starting point if 20% is not achievable right away. People focused on early retirement or large goals like a house often aim for 30% to 50% or more. The key is to make saving a fixed line in your budget, not an afterthought.

What is the difference between fixed and variable expenses?

Fixed expenses are the same amount every month — rent or mortgage, car payments, insurance premiums, and loan repayments. Variable expenses change month to month — groceries, fuel, entertainment, and clothing. Understanding this split helps you find where you have room to cut spending when your budget is tight.

Monthly Budget Calculator – Plan Spending, Track Expenses, and See Your Savings Rate

Monthly Budget Calculator

Enter your monthly income and all expenses to instantly see your budget balance, savings rate, and a full spending breakdown — free personal budget planner online.

No data stored

Instant results

Mobile friendly

100% free

50/30/20 rule included

Enter Your Monthly Figures

Monthly Income

Primary Take-Home Pay ($)

After tax, net income per month

Other Income ($)

Side work, freelance, benefits

Fixed Expenses (same each month)

Housing ($)

Rent or mortgage payment

Car / Loan Payment ($)

Insurance ($)

Health, auto, home/renters

Debt Payments ($)

Student loans, credit card min.

Variable Expenses (change monthly)

Groceries ($)

Utilities ($)

Electric, water, gas, internet

Transport ($)

Fuel, transit, parking, Uber

Dining & Takeout ($)

Entertainment ($)

Streaming, hobbies, going out

Clothing & Personal ($)

Savings & Investments

Savings Target ($)

Emergency fund, retirement, goals

Investments ($)

Stocks, 401k, index funds

Healthcare / Medical ($)

Childcare / Education ($)

Subscriptions ($)

Netflix, gym, apps, magazines

Miscellaneous ($)

Gifts, pets, home maintenance

Budget Method

Choose how you want to view your results

Your Budget Summary

Fill in your income and expenses on the left and click Calculate to see your full monthly budget breakdown.

Monthly Budget Balance

$0.00

surplus after all expenses

Income vs. Spending

Total Monthly Income —

Fixed Expenses —

Variable Expenses —

Savings & Investments —

Total Expenses —

Unallocated Balance —

Savings Rate 0%

Expense Rate 0%

Expense Breakdown

Income vs. Total Expenses vs. Savings

How to Use This Budget Calculator

This tool helps you build a clear picture of your monthly money flow. Start by entering your take-home pay — what actually lands in your bank account after taxes. Then fill in each expense category.

Once you click Calculate, you will see your total income, total expenses, unallocated balance, and savings rate all in one place. A positive balance means you have money left over. A negative balance means you are spending beyond your means.

Use the Advanced Options to add healthcare, childcare, subscriptions, and other spending that does not fit the main categories. You can also switch to the 50/30/20 comparison or zero-based budget view.

Budget Balance Formula

The core calculation is simple:

Total Income = Primary Pay + Other Income
Total Expenses = All fixed + variable + savings lines
Budget Balance = Total Income – Total Expenses
Savings Rate = (Savings ÷ Income) × 100
Expense Rate = (Expenses ÷ Income) × 100

Example: Income $4,000 – Expenses $3,200 = $800 surplus. Savings $600 ÷ $4,000 = 15% savings rate.

The 50/30/20 Budget Rule Explained

The 50/30/20 rule splits your take-home income into three buckets. It gives beginners a ready-made structure without tracking every purchase.

Category	Share	Examples
Needs	50%	Rent, groceries, utilities, transport, insurance
Wants	30%	Dining out, streaming, hobbies, clothing
Savings	20%	Emergency fund, retirement, debt repayment

If your needs consistently run above 50%, focus on reducing housing or transport costs first — they are usually the biggest fixed expenses.

Budget Improvement Tips

Pay yourself first. Move your savings amount out the day your paycheck arrives. What stays in checking gets spent.
List every subscription. Cancel anything you have not used in the past 30 days. Most households overspend on subscriptions by $50–150 per month.
Track variable spending weekly. Groceries and dining are the easiest categories to overspend without noticing.
Build a buffer. Keep at least one month of expenses in a separate account before investing.
Review monthly. Run this calculator every month to catch drift before it becomes a habit.

Common Budget Questions

Start with your total monthly take-home income — the net amount after taxes and deductions. List every expense you have: housing, groceries, transport, utilities, insurance, subscriptions, and anything else you spend money on regularly. Add savings as a line item too. Subtract your total spending from your income. A positive result is your surplus. A negative result means your spending exceeds your income and cuts must be made.

The 50/30/20 rule suggests dividing your after-tax income into three groups: 50% for things you need (rent, groceries, utilities, transport), 30% for things you want (restaurants, entertainment, travel), and 20% for savings and debt repayment. It is a popular starting framework because it is simple to follow and does not require tracking every individual transaction.

Zero-based budgeting means you give every dollar a job before the month starts. Income minus all spending categories — including savings — should equal zero. Nothing is left floating. It requires more upfront planning but eliminates unintentional spending because every dollar is assigned a purpose on paper first.

Most financial planners recommend saving at least 20% of your take-home pay each month. If that is not achievable immediately, 10% is a reasonable place to start. People aiming for early retirement or a specific large goal often aim for 30–50% or more. The most important thing is to make saving a fixed line in your budget rather than whatever is left after spending.

A widely used rule is that housing should not exceed 30% of your gross monthly income. Some advisors tighten this to 25% of take-home pay to leave more room for other categories. If your housing costs are above 35% of income, your budget will be tight everywhere else and it becomes hard to save. Reducing rent, getting a roommate, or refinancing a mortgage can free up significant cash each month.

Fixed expenses are the same amount every month: rent or mortgage, car payments, insurance premiums, loan repayments. You know exactly what they will cost. Variable expenses change from month to month: groceries, fuel, dining out, clothing, and entertainment. Because variable expenses flex, they are usually where the most budget savings can be found when you need to cut back.

How Much to Save — Monthly Income vs. Savings Rate

Find your income row and see how much to save each month at 10%, 15%, 20%, and 25% savings rates. All values in $.

Monthly Income	Save 10%	Save 15%	Save 20%	Save 25%	Save 30%

50/30/20 Rule — Spending Targets by Income

Use this as a target guide for your monthly spending limits. Values in $.

Monthly Income	Needs (50%)	Wants (30%)	Savings (20%)

Annual Savings Projection (Monthly Savings × 12)

See how much you accumulate per year based on your monthly savings amount. Values in $.

Monthly Saved	1 Year	3 Years	5 Years	10 Years

How Much Rent Can You Afford?

Maximum recommended monthly housing cost (≤30% of income) by income level. Values in $.

Monthly Income	Max Housing (25%)	Max Housing (30%)	Remaining for Other Expenses

Average Household Budget Benchmarks by Country

Typical monthly spending percentages for key expense categories, based on public consumer finance data.

Country	Housing %	Food %	Transport %	Savings Rate
🇺🇸 United States	33%	12%	16%	~5–8%
🇬🇧 United Kingdom	28%	10%	14%	~10–13%
🇨🇦 Canada	30%	11%	13%	~7–9%
🇦🇺 Australia	27%	13%	15%	~9–12%
🇩🇪 Germany	26%	14%	14%	~17–20%
🇫🇷 France	24%	15%	13%	~15–17%
🇯🇵 Japan	22%	16%	14%	~20–25%
🇮🇳 India	18%	30%	10%	~25–30%
🇧🇷 Brazil	22%	20%	18%	~8–12%

Values are approximate averages based on publicly available household spending surveys and may vary significantly by region, income level, and household size.