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Wash Sale Rule

A rule that prevents claiming a loss on a security if the same or substantially identical security is purchased within 30 days before or after the sale.

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Jan 19, 2026
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If I sell all of a stock before the end of the year can there be a wash sale?

Selling every share of a stock before year-end does not automatically prevent a wash sale; the IRS disallows a loss if the same or a “substantially identical” security was acquired within 30 days befo...

Feb 7, 2026

If I sell a stock 10 days after I bought it but some shares are a loss and some are a gain, can I claim the loss?

When an investor sells different lots of the same stock within 10 days of purchase—some at a gain and some at a loss—the losses on lots actually sold at a loss are generally usable to offset gains, su...