They actually did use to expire a year after purchase date,I had like 2-3 that were going to expire and I thought I was going to lose them,right around the time they were going to expire I noticed the new ones I was buying didn't have expiration dates,I went into my account and printed up the old certificates and they printed up without an expiration date.Another positive change they've made is that after you use the certificates it gets removed from the certificates on your account,so you don't have to wonder if you used them or self manage your certificates by marking them as used.These are both good changes but in the last year I've noticed the quality of restaurants on the site has dropped,a lot of the better places dropped out of the program or there's restaurants that don't accept promo codes and even in September when every other year they had a 90% sale,I don't recall them having it this year.