if you used a US broker they will do the adjusting of the basis and holding period of the shares that created the wash sale. you need to do nothing. If you got a 1099-B then the wash sales issue should be properly reflected
reflected
one way to tell is to look at what's reported as cost for the 500 shares purchased on 9/24. 200 shares should have a higher tax basis then what you paid due to the wash sale.
