Sri Lanka VAT calculation
Sri Lanka VAT Calculator – Add or Remove 18% VAT
Calculate the VAT-inclusive price from a net amount, or extract the net value and VAT from a gross amount using Sri Lanka’s standard 18% VAT rate.
VAT calculator
Add VAT or remove VAT from a price
Choose whether the entered amount excludes or includes VAT. The rate is editable for zero-rated calculations or historical comparisons.
VAT breakdown
Price after adding VAT
Amounts are calculated at full precision and rounded to two decimal places only for display. Actual invoice rounding can differ by line-item and accounting method.
Correct VAT formulas
How to add and remove 18% VAT
To add VAT, multiply the net price by 18% and add the result. To remove VAT from an inclusive price, divide the gross price by 1.18. The VAT inside a gross price is therefore 18/118 of that price—not 18% of the gross amount.
This calculator does not decide whether VAT applies
VAT registration, exemptions, zero-rating, time of supply, input-tax claims and tax-invoice requirements depend on the transaction and taxpayer. Confirm the current Inland Revenue rules or obtain professional advice before filing or issuing a tax document.
Sri Lanka VAT calculator questions
What is the standard VAT rate in Sri Lanka?
The Inland Revenue Department states that the standard VAT rate is 18% from 1 January 2024. The editable field lets you calculate a different applicable or historical rate without changing that default.
How much VAT is included in Rs. 11,800?
At 18%, the net amount is Rs. 10,000 and the VAT is Rs. 1,800. Dividing Rs. 11,800 by 1.18 correctly removes the included VAT.