A reexamination of the value of tax options

This article reexamines the value of tax trading when the taxrate on long-term realizations is less than that on short-termrealizations. In particular, the value of the option to realizelong-term capital gains and repurchase stock in order to increaseone's tax basis and restart the option to realize future lossesshort term is examined empirically. Our estimate of the incrementalvalue of restarting, which is based on the results of simulationsof several alternative tax trading policies over a large numberof independent return sequences, is generally much smaller thanthat reported by Constantinides (1984). The incremental valueof restarting is shown to depend critically on the particularpattern of realized returns and the assumed tax treatment ofunrealized capital gains at the end of the simulation period.The effects of stock price volatility, transaction costs, portfoliooffset rules, and realization cutoff levels on the value oftax trading are also investigated.