Sri Lanka Sales Tax Reverse
Extract the pre-tax price and tax amount from a total paid in Sri Lanka.
About Sri Lanka Sales Tax Reverse
Works back from a tax-inclusive total in Sri Lanka to the pre-tax price and the embedded tax, using the sales-tax rate you enter.
Formula
Pre-tax
Pre-tax = total ÷ (1 + rate)
Worked example
With the default values below, Sri Lanka Sales Tax Reverse returns Pre-Tax Price of රු. 100.00. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Amount paid (incl. tax)minimum 0
- 107
- Sales tax rateaccepts 0–15
- 7
Results
- Pre-Tax Price
- රු. 100.00
- Tax Amount
- රු. 7.00
Step by step
- 1Values used
- 2Pre-tax
- 3Pre-Tax Price= 100.00
- 4Tax Amount= 7.00
Assumptions and limits
- The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, fees or charges or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
- Estimate.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Estimate.
Frequently Asked Questions
Is the price usually tax-inclusive here?
In most U.S. states sticker prices are pre-tax; elsewhere they may be tax-inclusive.
How accurate is this estimate?
Rates are approximate reference values. Local rates, exemptions and rules can differ, so treat the output as a planning figure only.
Related Calculators
Sri Lanka specifics
- Currency
- Rs LKRSri Lankan Rupee
- Region
- Asia
- Country code
- LK
- Amounts look like
- LKR 1,234,567.89
- Dates look like
- Mar 9, 2026
- Units
- metricWeek starts Monday
Results on this page are expressed in LKR (Sri Lankan Rupee). Figures are estimates for general planning — confirm current rates and thresholds with the relevant Sri Lanka authority before relying on them.