Manager asked for SSN at caesars palace sports book

I was at caesars palace to cash in my ticket for giants 6900 to win 3000. The manager asked I needed to get a total rewards next time. Than I placed 2 more bets for $500 and I won both and he wouldn't let me cash it in if I didn't give him my SSN and ID. So I did just that and he gave me a total rewards card. Can they ask for my SSN? I regret giving him my number and fear of him using my SSN.

Yes, if they need to fill out a W2G due to winnings.

So in total you cashed out 10.9k?  Should have taken some in chips...

Yes, but only the winnings are counted to determine if the amount it high enough for taxes to be applied.

Wrong. It is not for a W2G.  It is for a CTR (cash transaction report). All it is is a notification that said person made a cash transaction over 10k in a single gaming day.  It has nothing to do with taxable gambling winnings.

Patriot Act regulation…trying to keep track of terrorist activities. Of course, it will be abused by every agency that can…esp. IRS.

You had to report 10k before there was PatriotAct and if you note Sportsbooks hate this bs as much as the bettor. Just curious,but they ask for ss# and I've said not carrying my card but my ss# is etc. This isn't the IRS,all the book wants is 9 digits........