Estimate the tax owed on a capital gain (crypto or any other investment) under French rules (flat tax or progressive brackets with family quotient) or Quebec rules (combined federal and provincial brackets, with Quebec's 50% inclusion rate).
Open the live calculator → On moneyprinter.uk, click the "Taxes" tabThis amount, the difference between the sale price and the purchase price, is the base used to calculate the tax.
Depends on the country chosen (France or Quebec), and for France, on the regime elected (flat tax or progressive brackets) as well as other household income and the family quotient. The exact figure, based on rates checked and dated, shows up in the live calculator.
In France, a capital gain from selling digital assets is in principle subject to the flat tax (Prélèvement Forfaitaire Unique) of 30%. It's also possible to elect, on a global and irrevocable basis for the year, to use the progressive income tax brackets instead, which factor in the marginal tax bracket, other household income, and the family quotient (number of shares). Depending on income, either regime can be more favorable, which is exactly what the calculator lets you compare.
In Quebec, only half of the capital gain is included in taxable income. That amount is then added to other declared income and follows the progressive brackets, federal then provincial, applied one after the other on the same income ranges.
Neither France nor Quebec adjusts a capital gain for inflation before taxing it. The calculation is based on the nominal gain, the difference between the sale price and the purchase price in current euros or dollars, with no correction for the currency's loss of purchasing power between the two dates. In practice, if part of the price increase is only tracking inflation or monetary dilution over the period, it's still counted as a taxable gain, even though the real purchasing-power gain is smaller than the number shown. That's exactly what the purchasing power calculator lets you check separately.
By default at the 30% flat tax, with the option to elect progressive income tax brackets instead (family quotient and other income factored in). Which is more favorable depends on household income.
Only half of the capital gain is included in taxable income, then taxed under the combined progressive federal and provincial brackets.
No, neither in France nor in Quebec. The tax applies to the nominal gain, with no adjustment for inflation or monetary dilution over the holding period. Part of the taxed gain can be a monetary illusion rather than a real gain.
No. It's a starting point to understand the order of magnitude, based on rates checked by hand, not a final figure to file.