Points are valid for 12 months from the date of the last qualifying purchase. Each qualifying purchase will automatically extend the expiration date of all unused points for 12 months from the month of the qualifying purchase.
For example, if you make a purchase and accrue 100 points on January 1, those points would expire on January 1 of the following year. However, if you make a subsequent purchase on February 1 and accrue another 100 points, all 200 of your points would then expire on February 1 of the following year.
Once points are redeemed for a rewards coupon, the coupon is valid for 12 months.