As a newly minted financial advisor at a wealth management firm, you are tasked with providing investment advice to high-net-worth individuals. One of your clients, Mr. Thompson, has expressed concern about how taxes could impact his investment returns. He is particularly focused on understanding the implications of capital gains tax and how it might affect his decision to sell certain assets in his portfolio.
Discuss the primary tax considerations Mr. Thompson should keep in mind when managing his investment strategy, particularly focusing on the concepts of realized versus unrealized capital gains, short-term versus long-term holdings, and tax-loss harvesting. Your response should provide a clear and coherent strategy that takes these factors into account.