The tax implications of trading or investing in cryptocurrency vary depending on the country. In general, income from trading or investing in cryptocurrency is subject to capital gains taxes. This can include short-term capital gains if the investment is held for less than a year and long-term capital gains if held longer than a year. Depending on the country, investors may be responsible for self-reporting their gains and losses. Investors should research their local laws and consult a tax professional before engaging in cryptocurrency investing or trading.