What is Capital Gains Tax?
Capital gains tax applies to the profit realized when you sell an investment for more than you paid. In Japan, the rate is a flat 20.315% on stocks and funds. In the US, long-term capital gains (assets held over one year) are taxed at 0%, 15%, or 20% depending on income, while short-term gains are taxed as ordinary income.
Tax-Efficient Strategies
Holding investments longer reduces tax drag because you defer the tax payment, allowing more capital to compound. Tax-loss harvesting - selling losing positions to offset gains - can reduce your annual tax bill. Using tax-advantaged accounts like NISA or 401(k) plans eliminates capital gains tax entirely on qualifying investments.
Key Considerations
Never let tax considerations override sound investment decisions. Holding a declining stock just to avoid taxes can result in larger losses than the tax would have been. However, being tax-aware in your trading frequency and account placement can add 0.5-1.0% to annual after-tax returns over time.