Consumption Tax Receipt Calculator
Split a price into pre-tax and tax components.
Split a tax-inclusive price into the pre-tax amount and the tax portion at any rate. Enter tax rate and see the result instantly.
What this tool does
Receipts often show tax-inclusive totals. Enter the gross price and the tax rate. The tool returns the pre-tax amount and the tax portion.
Enter Values
Formula Used
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Calculations, display, or translation — let us know.
Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
A 120 receipt at a 20% rate breaks down to 100 pre-tax and 20 tax. The reverse calculation matters for expense claims, business accounting, and refund calculations. Setting the rate to your jurisdiction's VAT, GST or sales tax handles every case.
A worked example
Try the defaults: tax-inclusive price of 120, tax rate of 20%. The tool returns 20.00. You can adjust any input and the result updates as you type — no submit button, no reload. That's the real power here: seeing how sensitive the output is to one or two assumptions.
What moves the number most
The result responds to Tax-Inclusive Price and Tax Rate. Not every input has equal weight. Flip one at a time toward extreme values to feel which ones move the needle most for your situation.
The formula behind this
Tax portion equals gross times rate divided by one plus rate. Pre-tax equals gross minus tax. Works for any sales tax / VAT / GST regardless of jurisdiction. Everything the calculator does is shown in the formula box below, so you can check the math against your own spreadsheet if you want.
Using this in pay negotiations
Knowing the exact figure behind a headline rate gives you specific numbers to anchor to in conversations about pay. "The difference is £X per month after tax" lands harder than "a couple of grand a year". Concrete numbers move decisions.
What this doesn't capture
Tax bands, pension contributions, student-loan deductions, and benefits-in-kind sit outside this calculation. The figure is the headline; your actual position depends on local tax rules and personal circumstances. Pair with a dedicated take-home calculator for the full picture.
What to calculate alongside this
One figure by itself is fragile. The tax loss harvesting calculator, the dividend vs salary tax split calculator, and the payroll tax split calculator cover adjacent ground — the answer to any one of them changes how you read the output from this tool. Worth a few minutes each, honestly.
The tax portion of this price is the figure shown above.
Inputs
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
Tax portion equals gross times rate divided by one plus rate. Pre-tax equals gross minus tax. Works for any sales tax / VAT / GST regardless of jurisdiction.
References
Frequently Asked Questions
Why divide by 1 + rate?
Mixed rate purchases?
Zero-rated items?
Adding tax instead?
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