SimpleTax guides
A little clarity for every calculation.
Start with the numbers you know. These short guides explain the math, walk through an example, and show you how to do it in SimpleTax.
01 / Adding Tax
How to calculate Total from Before Tax
Add Tax to a price with a simple formula, then try the same calculation in SimpleTax.
Read guide 02 / Working backwardsHow to find Before Tax from Total
Work backwards from a price that includes Tax to find Before Tax and the Tax Amount.
Read guide 03 / Understanding roundingHow currency rounding works in SimpleTax
Understand currency precision and the optional rounding increment, with a worked CHF example.
Read guide 04 / Finding a percentageHow to find the Tax Rate from Before Tax and Total
Calculate the percentage added to a Before Tax amount when you already know the Total.
Read guide 05 / Finding the Tax AmountHow to calculate Tax Amount from Before Tax
Multiply a Before Tax amount by a Tax Rate to find the Tax Amount and check the Total.
Read guide 06 / Prices around the worldIs Tax included in the price? A guide across countries
Compare Tax-inclusive and Tax-exclusive price displays across Europe, the Americas, Africa, Asia, and Oceania, with official sources.
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