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VAT Calculator
Finance & Money

Sales Tax Calculator

Tax and total from pre-tax price.

Educational estimates only. Not medical, legal, tax, or financial advice.

Calculation Summary

Tax Amount
$8.00
Estimated Total
$108.00
<$1k
<$5k
>$5k

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Guide: Sales Tax Calculator

What it does

Converts between pre-tax, tax, and total using a single tax rate.

How to use it

Enter amount and tax rate, choose add-tax or remove-tax mode if available.

Formula

Total = Pre-tax × (1 + rate); Pre-tax = Total ÷ (1 + rate).

Example

$100 + 8.25% tax → $108.25 total.

FAQs

Does this handle VAT/GST?

Mathematically similar for single-rate models; real invoices may have multiple rates.

Tax-inclusive vs exclusive?

Clarify whether your input price includes tax before interpreting results.

Rounding on cash registers?

Cent rounding rules vary; this tool uses full precision.

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Perkss provides a commission-free hospitality EPOS with ordering, table bookings, branded apps, full customer data ownership, 24/7 support, and no long-term contracts.

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