Olive Garden Coupon: Save up to 20% off Your Bill! May 11, 2015 by Jennie The links in the post below may be affiliate links. Read the full disclosure.Print Email Olive Garden is running a fun promotion through May 17th. The more friends you invite to dine with you the more you’ll save off you bill! Groups of 2 will save 10%, 3 will save 15%, and 4 or more will save 20%! Just fill out your information and print out your coupon.