Core Viewpoint - Strengthening the regulation of overseas income tax reporting is seen as an important measure to adjust high incomes, promoting legal fairness and common prosperity [1][2][3] Tax Regulations - According to China's individual income tax law, personal stock trading income is classified as property transfer income and is subject to a 20% tax rate, with domestic secondary market stock trading income currently exempt from individual income tax [1] - There are no tax exemptions for overseas stock trading income, which must be reported in the year following the income generation [1] International Practices - Taxation on overseas stock trading income is a common practice among major economies such as the US, Germany, and Australia, as well as many developing countries [1][2] - Some countries allow for annual loss offsets or carryover of unutilized losses to future years, but they typically employ a progressive tax rate that exceeds China's flat 20% rate [2] Tax Calculation and Complexity - The current tax system allows for annual offsetting of gains and losses from overseas stock trading, which is considered a reasonable approach given the complexities of calculating taxes on high-frequency trading with significant price volatility [1][2] - The tax authorities permit mutual offsetting of gains and losses within the same year, simplifying the tax calculation process for taxpayers [1][2] Investment Recommendations - Investors are advised to consider the associated costs and risks of overseas stock trading, and to explore tax-exempt investment channels such as trading Hong Kong stocks through the Shanghai-Hong Kong and Shenzhen-Hong Kong Stock Connect programs [2][3] - It is emphasized that taxpayers must comply with tax laws and report overseas income as required [3]