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Your first monthly budget in 15 minutes

5 min read
Man writing in a notepad on his bed beside a laptop

Short answer: A budget is a plan for this month’s money that you make before the month starts. You don’t need an app or a spreadsheet. List what comes in, then what must go out, then decide what to do with the rest. The most useful number is the one left at the end. If it’s below zero, you’ll see that before you run out of money mid-month.

Why bother?

Plenty of people know roughly what they earn and still can’t say where the money went by the 20th. That isn’t a character flaw. Small UPI payments (quick payments from your phone) are easy to forget. And some big costs, such as school fees, insurance renewals or a wedding gift, only come up a few times a year.

A budget won’t add a single rupee to your income. What it does is show you the gap early, while you can still choose what to cut or push to later.

The 15-minute method

Take your phone, your last bank or UPI statement and a pen.

Minutes 1–3: Money in. Write down what actually lands in your account each month. That’s your take-home pay, not your CTC (the full cost to company figure in your offer letter). If your income changes month to month, use your weakest recent month for now. (See Budgeting when your income changes every month.)

Minutes 4–8: Must-pay costs. These bills come whether you like it or not:

  • Rent or home loan EMI (the fixed amount you repay every month)
  • Groceries and cooking gas
  • Electricity, water, mobile and internet
  • Travel to work
  • Medicines and regular health costs
  • Money you send to parents or other family members
  • School or college fees, spread out per month

Minutes 9–10: Loan payments. List every EMI, credit card payment, BNPL (buy now, pay later) instalment and amount you owe friends or family. Write the minimum you must pay, not the amount you’d like to pay.

Minutes 11–12: Costs that don’t come every month. Think about the next 12 months: festivals, weddings, insurance premiums, vehicle servicing, school admission, a trip home. Add them up and divide by 12. Put that much aside each month, and these costs won’t turn into new debt.

Minutes 13–15: Do the sum.

Money left = Money in
           − Must-pay costs
           − Loan payments
           − Monthly set-aside for irregular costs

An example in rupees

Ravi, 24, works in Indore. His take-home pay is ₹28,000.

Item Per month
Take-home pay ₹28,000
Rent (shared flat) − ₹7,000
Food and gas − ₹5,500
Electricity, mobile, internet − ₹1,200
Travel − ₹1,800
Sent to parents − ₹4,000
Phone EMI − ₹2,500
Set-aside: Diwali, a wedding, bike insurance (₹18,000 a year ÷ 12) − ₹1,500
Money left ₹4,500

So Ravi has ₹4,500 a month to split between flexible spending (eating out, shopping, films and so on) and savings. Before this, he thought he had “about ₹10,000 spare”. He’d forgotten the set-aside and part of his food spending.

All figures are made up for this example.

What to do with the money left

  • It’s positive: Pick a fixed amount to save on payday, before you spend anything else. Even ₹500 builds the habit. Whatever remains is for flexible spending.
  • It’s close to zero: Look at your two or three biggest flexible costs first. Small daily cuts help less than one bigger change, like a cheaper phone plan or cooking more often.
  • It’s negative: Better to find this out now than mid-month. Don’t cover the gap with a new loan unless you have a plan. Read Your next EMI doesn’t fit your budget and use the debt map tool.

About the 50/30/20 rule

You may see advice to spend 50% on needs, 30% on wants and save 20%. It’s a starting idea, not a test you pass or fail. In a high-rent city, or when you support family, needs can easily take 70% or more. Go by your own numbers, not the rule.

Limits of this method

  • It’s a plan, not a forecast. Surprise costs will still happen. That’s why you need an emergency fund (see Starting an emergency fund with a small amount).
  • With irregular income, a single-month budget can make things look better than they are. Plan on your weak months.
  • If you share costs with a partner or family, agree whose income is really available before you count it.

What to check today

  1. Find your exact take-home pay from your last payslip or bank credit.
  2. Scroll through last month’s UPI history and note any regular payment you forgot.
  3. Write down one irregular cost coming up in the next three months.

Try it with your own numbers

→ Budget tool: enter your income and costs and see your money left, plus a weak-month scenario. Nothing you type is sent to us or stored unless you choose to save it.

Sources and review

Try it with your numbers
Monthly budget
Open tool →

Educational information, not financial advice. Found an error? Tell us → · Corrections log

Frequently asked questions

How do I make a monthly budget for the first time?

List what comes in, then what must go out, then decide what to do with the rest. Start with your take-home pay. Write down must-pay costs like rent, food and bills, and every loan payment. Add a monthly share of your yearly irregular costs. The money left at the end is the number to watch. With a pen and your UPI statement, it takes about 15 minutes.

Is the 50/30/20 rule right for India?

Use it as a starting idea, not a test you pass or fail. The rule says 50% on needs, 30% on wants and 20% on savings. In a high-rent city, or when you support family, needs can take 70% or more of your pay. Go by your own numbers. The Budget tool shows what is really left each month.

Should I make my budget on CTC or in-hand salary?

Use your in-hand (take-home) pay, the amount that actually lands in your account. CTC (cost to company) includes money you never get each month, like the employer's PF. If your income changes month to month, use your weakest recent month for now. See CTC, gross and take-home.

How do I plan for Diwali, weddings and insurance in my budget?

Add up the costs you expect in the next 12 months, such as festivals, weddings, insurance premiums or vehicle servicing. Divide the total by 12 and put that much aside each month. In our example, ₹18,000 a year becomes ₹1,500 a month. That way these costs don't turn into new debt.

What if my budget shows a negative number at the end of the month?

Better to find this out now than mid-month. Look first at your two or three biggest flexible costs, because one bigger change helps more than many small cuts. A cheaper phone plan or cooking more often are examples. Don't cover the gap with a new loan unless you have a plan. If an EMI is the problem, read Your next EMI doesn't fit.

How much should I save from my salary each month?

There is no fixed share that suits everyone. Pick a fixed amount and save it on payday, before you spend anything else. Even ₹500 builds the habit. Whatever remains is for flexible spending. A good first goal is a small emergency fund for surprise costs. See Starting an emergency fund.