Free calculator
Free income and expenses calculator
Put your monthly income on one side and your monthly expenses on the other. The calculator shows instantly whether you are living on a surplus or a deficit, what share of your income is genuinely yours, and the yearly picture.
Last updated: September 2026
Income minus expenses
= Rs. 60k
= Rs. 42k
- Left over each month
- Rs. 18,000.00
- Savings rate
- 30.0%
- Left over per year
- Rs. 216,000.00
How the formula works
Surplus = income - expenses. When the result is positive it is money you keep each month; when negative it is a gap funded by borrowing or savings. The savings rate is surplus / income, so if 20% of your take-home pay is left over, your savings rate is 20%.
Worked example
You bring home Rs. 60,000 a month and spend Rs. 42,000. That leaves Rs. 18,000, a 30% savings rate and Rs. 216,000 a year that can fund savings, goals, or repayments.
What affects the result
The outcome changes with how complete and honest your expense list is. Occasional costs like repairs, gifts or yearly subscriptions are often missed, which makes the real monthly figure higher than it looks. Using an average of a few months of actual spending gives a fairer answer than one optimistic month.
Common mistakes
- Comparing gross income with after-tax spending.
- Leaving out irregular costs that arrive once a year or once a quarter.
- Treating one month as typical when income or expenses vary a lot.
- Calling a balance sheet asset 'income' to make the surplus look better.
Frequently asked questions
How do I calculate what is left of my income each month?
Subtract your full monthly expenses from your monthly income. Whatever is left over is your surplus; if the number is negative you are spending more than you earn.
What is a good savings rate?
A healthy starting target is 20% of after-tax income. More is better, but any consistent positive rate puts you ahead of most households.
What should count as an expense?
Every rupee that leaves your account: rent, food, transport, bills, subscriptions, insurance, debt payments and anything you spend on wants. Being complete matters more than being exact.
How often should I run this check?
Monthly for most people, after payday. Comparing three to six months shows a trend and catches expense creep before it becomes a deficit.
Related tools
Results are arithmetic on the numbers you enter, not predictions. Validate important figures with an accountant before making financial commitments.