Crypto Tax Loss Harvesting: What US Investors Need to Know
Tax loss harvesting is the practice of selling an investment at a loss to offset capital gains (and, within limits, ordinary income) elsewhere on a tax return. Historically, cryptocurrency has not been subject to the 'wash sale rule' that prevents stock investors from repurchasing a substantially identical security within 30 days and still claiming the loss, though this treatment has been the subject of legislative proposals and could change.
How the strategy works in general
An investor holding a crypto position at an unrealized loss can sell it, realize the loss for tax purposes, and use that loss to offset capital gains realized elsewhere (and up to a limited amount of ordinary income), potentially repurchasing the same asset shortly after to maintain market exposure.
Why the wash sale rule's absence has mattered
For stocks, repurchasing a 'substantially identical' security within 30 days disallows the loss for tax purposes. Because this rule has not historically applied to crypto under US guidance, some investors have sold and immediately repurchased the same crypto asset to harvest a loss while maintaining their position — a strategy not available to stock investors.
Why this could change and why records matter regardless
Legislative proposals have periodically floated extending wash-sale-style rules to crypto. Regardless of current rules, meticulous record-keeping of cost basis and disposal dates for every transaction remains essential, since tax rules and their enforcement can change.
Frequently asked questions
Is tax loss harvesting legal?
Yes, it is a legal, widely used tax strategy, but the specific mechanics (including whether the wash sale rule applies) depend on current tax law, which can change. This is not tax advice.
Should I do this myself or use software?
Given the complexity of tracking cost basis across many transactions, most investors use dedicated crypto tax software or a qualified tax professional rather than tracking this manually.