10/15/2026
He made $2 million day trading. Then he suffered significant losses. 📉
You’d think his tax bill would shrink with his account balance. It might not.
This came up in a real client consultation today, and it’s a trap many active traders don’t see coming: the wash-sale rule.
If you sell a stock or security at a loss and buy the same or a substantially identical security within 30 days before or after the sale, that loss may be disallowed for now. It isn’t necessarily gone forever. It’s generally added to the basis of the replacement shares, which effectively defers it.
For day traders constantly buying and selling the same tickers, wash sales can stack up fast. The result is major economic losses on paper and still substantial taxable gains on your return.
⚠️ Your brokerage balance does NOT tell you your taxable income.
There’s another rule serious traders should know about: the §475(f) mark-to-market election. If you qualify for trader tax status and make the election properly and on time, it can change how your trading is taxed, including how wash-sale rules apply to the covered securities. But timing and qualification matter, and it generally isn’t something you can fix after the damage is done.
Year-end is coming. Find out what your taxable gain actually is before your 1099 shows up.
Save this post and send it to someone who actively trades. Follow for high earners and business owners, and DM us “TRADER” to review your situation before December 31.
This content is for educational purposes only and is not tax advice. Consult a qualified tax professional about your situation.