Once the profit in the virtual currency, I think taxes will care.
If you enter the income amount of virtual currency (gains), it is a simple app to calculate the measure of the income tax and residence tax of miscellaneous income.

※ tax of virtual currency, it is classified in miscellaneous income as a general rule. Since the miscellaneous income of the total taxable income, because at the time of the actual return is calculated along with the total taxable income of such other revenue, the amount that is calculated in this app is a guide only.