CVS updated t
s on the store B1G1 free sales.
Here's an explanation:
Buy One, Get One Free Coupons
Sales tax must be paid for any Buy One, Get One Free coupon offer, if required by applicable state laws. Two coupons may be used on a Buy One, Get One Free promotion as long as it does not exceed the item total
Buy One, Get One Free promotions may be combined with Buy One, Get One Free Coupons. Customers are responsible for paying applicable tax