The pre-tax value inside a GST-inclusive price. Divide by one plus the rate; subtracting the rate from the total is the common error and lands short every time.
Also called: reverse gst, gst backward calculation, extract gst from total.
₹10,000 before tax plus ₹1,800 of GST gives ₹11,800. Within one state, so it splits equally into CGST and SGST.
Computed from the published rates for the tax year you selected, which is not necessarily the current year. A calculation, not tax advice, and it does not know anything about your circumstances beyond the figures entered.
This is what the calculation gives for the numbers you entered. It is an estimate, not advice, and it knows nothing about your situation beyond those numbers. Rules for India change on a published schedule; the effective date is shown on every rule-based tool.
A price on a shelf or an invoice total already contains the tax. Recovering the taxable value means dividing by one plus the rate, because the tax was computed on the smaller number. At 18% the divisor is 1.18, and the difference between dividing and subtracting on a ₹1,180 total is ₹32.40.
from a tax-inclusive price: net = gross / (1 + rate); tax = gross - netEach of these is asserted on every build. If a change to the engine ever moved one of these answers, the build would fail before the page could print it.
Total including GST₹1,180
Exact division; the figure most often got wrong by subtraction
Open this exampleTotal including GST₹1,050
arithmetic identity
Open this exampleTotal including GST₹1,000
degenerate case
Open this exampleFormula version 1.0.0 · definition 1.0.0 · India · Report a problem with this calculator