0 W% i$ M3 D! f: Y' M: h X* wCapital gain or loss on foreign currency is incurred only when an actual transaction has occurred or is realized — a paper gain or loss on paper does not count. # J& F0 C: k% } ( n( p$ {( z! v但是,如果投资在美元股票等, 增值或亏损需在成交后报上, 尽管售卖后的美元用以买其他美元股票, 报税时, 已经销售后的股票买卖增值/亏损也需要同年报上。