Find a simple percentage-based tax on any amount.
A simple percentage-of-amount calculation, useful when you just need the arithmetic rather than a specific tax's rules.
Tax: Amount × rate ÷ 100
Not every tax comes with a special rule. Sometimes you simply need a percentage of an amount and the total with that percentage added. This calculator does exactly that. You enter any amount and any tax rate, and it shows the tax and the amount plus tax.
It is useful for levies that work as a plain percentage, such as a local cess, a service charge, an estimated tax set-aside, or a rate you are testing in a budget. A contractor in Bhopal who sets aside 7.5% of each payment for tax, or a student solving a textbook problem, can use it without worrying about the special rules of GST or income tax. The question it answers is plain: what is x% of this amount, and what is the new total?
1. Write down the amount A and the tax rate t.
2. Convert the rate to a decimal: t ÷ 100.
3. Tax = A × t ÷ 100.
4. Total = A + tax = A × (1 + t ÷ 100).
5. To find the rate from two figures, use t = (total − A) ÷ A × 100.
6. To remove tax from a total, divide by (1 + t ÷ 100).
A tax of t% means t rupees for every hundred rupees of the base. Multiplying the base by t ÷ 100 scales that ratio to any amount. Adding the tax to the base gives A × (1 + t ÷ 100), which is why a single multiplier like 1.075 does the whole job. Seeing tax as a multiplier also explains why repeated taxes or discounts must be multiplied rather than added.
This calculator applies one flat rate to the whole amount. Many real taxes work this way, such as GST on a given item or a fixed cess. Income tax does not. It uses slabs, where different parts of income are taxed at different rates, so applying a single slab rate to the whole income overstates the tax. For income tax, use the dedicated calculator. Use this one when the rule really is one rate on one base.
If a rate rises from 5% to 7.5%, it has risen by 2.5 percentage points, but by 50% in relative terms. Mixing these up is a common source of confusion in news reports and budgets. This calculator works with the rate itself, so to see the effect of a change, run it once at the old rate and once at the new one and compare the tax amounts.
Sanjay, a civil contractor in Bhopal, has received a payment of ₹2,50,000 and wants to set aside 7.5% of it for his estimated tax bill.
Answer: Tax amount ₹18,750; Total ₹2,68,750
Using this for income tax, which follows slabs rather than one rate.
Using it for GST invoices without also splitting CGST and SGST or charging IGST.
Removing tax from a total by subtracting t% of the total instead of dividing.
Confusing a change in percentage points with a percentage change.
Setting aside a share of income for estimated tax.
Working out a flat cess or service charge on a bill.
Solving school and college percentage problems.
Testing budgets at different tax rates.
Should I use this for GST or TDS specifically?
For GST or TDS specifically, use our own GST or TDS calculators instead. They follow the real rules, like GST's CGST/SGST split, instead of just a simple percentage.