not so........i flip in and out of stuff all the time with no regard......5000 shares of X.., and take a $2 loss.....i buy it back 2 weeks later when its running 5000 of X...and sell it.......if i go to etrade web site for example...it shows the new shares as replacement shares.......it`s not an issue........even if you look at gains and losses before the year ends you`ll see deferred loss.....it means nothing as long as your done with the stock completely before december.
once you examine the 1099 the transaction will appear as disallowed loss, but right next to it the loss will be in the last column as an allowed loss and in parentheses.
can flip and wash till your hearts content....just make sure all positions in the stock are closed out in November.......if a short position, better to close out before the thanksgiving break, as settlement date is applicable to short positions.
i got stuck in it 4 or 5 years ago, because i kept part of a wash and held it into next year.......tax software will still give you the loss next season when you close out the position....and will adjust your cost basis....HAPPY WASHING!!