Most casinos I have seen have a 90 day expiration. I have seen some casino TITO's with a 30 day expiration date. Where I work we have a 90 day expiration, at day 90 and 1 second the ticket is expired. Even though it's printed on the ticket and in the legal writing on the back, we still have still upset a few guests that have an expired ticket. The largest one I had to deny was over 2 years old and was for around $700.00. I created a spreadsheet at work that tells how long a ticket has been out, because I got tired of counting the number of days on a calendar.

So it pays to read your TITO and know the policy of the casino in regards to the redemption period.