Tax Loss Harvesting in Quarter 1?

This paper is among the first to look systematically at the timing of the tax loss harvesting decision faced by investors. A conceptual explanation of the trade-off between tax savings and incremental transaction costs, which underlies the tax loss harvesting decision, is offered. A simulation study is used to show how three variables - the investor's tax rate and transaction costs, and the time of year that a loss is incurred - interact to determine the potential benefit of harvesting a loss early (i.e., not waiting until year-end). The results show that tax loss harvesting can be highly beneficial early in the year (e.g., January) while it is often counter-productive later in the year, contrary to the way that tax loss harvesting is widely understood and practiced. Suggestions for future research, including the need to test the generalizability of these findings to fixed income assets, and implications for investment management are provided