T.G.I. Fridayâ€™s Coupon: $5 off a $15 Purchase Coupon January 19, 2012 by SMFM Leave a Comment T.G.I. Fridayâ€™s Coupon If you are planning on going out to eat for dinner anytime soon, be sure to go to T.G.I Fridayâ€™s! Spend over $15, and get $5 off your bill after using this coupon! This coupon is valid through January 31st, 2012.