Also called: TLH, wash sale
Selling investments at a loss to offset realized gains. Losses beyond your gains offset up to $3,000 of ordinary income a year, and the rest carries forward indefinitely.
The wash-sale rule disallows the loss if you buy the same or a substantially identical security within 30 days before or after the sale.
RetIQ models harvesting in aggregate from an annual loss estimate you enter; it does not track individual lots.