Tax loss harvesting (TLH) is a strategy where you sell investments at a loss to offset capital gains taxes, then reinvest the proceeds in similar (but not identical) investments to maintain market exposure. With SCHD, this strategy can be particularly effective due to its popularity and the availability of similar dividend-focused ETFs.
When implemented correctly, TLH can reduce your current tax bill, potentially increase after-tax returns, and create tax-loss carryforwards that can offset future gains.