Originally Posted by westcoastinvader

I've had many four digit wins in a single day at blackjack in Nevada, but never a five digit.

I may be mistaken, but somehow I thought that if cashing in a large enough amount of chips at the window at one time there was some tax transaction of note that would take place.

Not a "holier than thou" thing, but I always declare my annual gambling winnings......and the offsetting losses. Candidly, most of the time I declare "a wash" for year end by my estimates and keep enough supporting detail around to have a reasonable defense if audited.

If playing at a casino on a regular basis with monitored play for comps, I'd highly recommend making an effort to acknowledge in some way on tax filings.