Tax-loss harvesting against the sale gain
Dec 31 hard stopTo the extent any gain falls outside the §1202 exclusion, harvesting paired losses from the concentrated position is the highest-certainty offset available this year, at the 23.8% effective rate, while beginning to de-risk the concentration. The wash-sale rule reaches substantially identical securities acquired within 30 days before or after the sale, so replacement timing must be managed to preserve the loss.
Assumes ~$100K–$220K of harvestable long-term losses offsetting gain otherwise taxed at 23.8%; applies only to gain not excluded under §1202. Wash-sale window (30 days before and after) observed.
Any non-excluded gain taxed at 23.8% with no offset; concentration risk remains.
$24K–$52K of tax avoided and the position de-risked, if losses are realized before Dec 31.