Correct. But to be more clear, it's a net year end LOSS & wash, for that security.
#1
For instance you make $1,000 in GOOG on Jan 10, 2005, then trade it, every day that year, up thru Dec 31st, 2005. You lost ..... $-35,000 net doing it.
Net loss is -$34,000 (+1000, -35000= -34,000). This is a wash sale, and the 34k loss is NOT allowable on THIS year's tax return, UNLESS you elected MTM in time for 2005.
It's a wash because it's a NET YEAR END loss....and you've traded it in the last 30 days.
EDIT: (SEE PAGE 6 OF THIS THREAD FOR CLARIFICATION)
You can take wash losses of ANY size with MTM accounting, as long as it's elected in time. Wash loss consideration is completely irrelevent for this type of trader accounting election. MTM is the way to go for 9.5++ outta 10 traders.
Next example:
#2
You lose -15,000 trading GOOG on Jan. 10, 2005, this time (instead of a gain).
You then trade it everyday that year up to Dec. 31st+ trying to make it back. You do. You make another +50,000. Year end gain is +35,000 (-15000+50000=+35000). This is not a wash sale, your year end net is what counts, and the timing of your most recent trades. Let's even suppose your last trade on dec. 31st was a loser in GOOG......it's irrelevent, regardless of accounting, as long as you're net positive for that year, in that security.
#3
Another example:
You make $5,000 trading GOOG on June 21st, 2005. You don't trade it again until Dec 16th, 2005, when you lose -$12,000. You don't trade it again, until mid 2006. You can take that -7k loss(+5,000-12,000=-7k) on your taxes to offset gains for 2005 IF YOU HAVE NET GAINS, OR USE MTM accounting, either one. Or losses up to 3k if you're not an MTM accounting trader.(you don't get full write off of loss, unless you are a MTM accounting trader).
There are a few other fine points I'm leaving out, but this may give a slightly clearer picture.
Quote from polpolik:
A wash sale is if you make a trade and incur a loss for that trade, you may not classify it as a loss yet if you trade that same stock within a 30 day period.
The loss can be used as a cost basis for the next trade though. Look it up on yahoo or google, basically it's a pain in the ass to account for.
Thanks to everyone who replied back, all info has been very useful and will definitely be used by me come tax time.