*Offer may be modified or cancelled anytime. Only new members are eligible for the Referral Sign Up Boost Bonus. Not combinable with other offers including the Welcome Bonus. Qualify for a Referral Sign Up Boost Bonus when you sign up to become a new member using your Referrer’s referral link or other method supplied by Rakuten and make Qualifying Purchase(s) within seven (7) days of signing up (your “Boost Bonus Period”). A "Qualifying Purchase" means a purchase at a participating merchant that earns Cash Back through Rakuten.com, the Rakuten App or the Rakuten browser extension. Merchants eligible for Boost Bonus are identified with their Cash Back rates when available. The Boost Bonus is not available on purchases from all merchants offering Cash Back. The Referral Sign Up Boost Bonus will add 10% Cash Back to the effective standard Cash Back rate for your Qualifying Purchases made during your Boost Bonus Period. The Referral Sign Up Boost Bonus shall be subject to a total overall cap of $50.00 for all of your Qualifying Purchases made during the Boost Bonus Period (“Boost Cap”). The standard Cash Back rate shall not be subject to the Boost Cap, though may be subject to other applicable merchant terms and exclusions. One Referral Sign Up Boost Bonus per eligible new member. You and your referrer must reside and be located in the 50 United States, District of Columbia, or Canada and comply with the Refer-A-Friend Program Terms. Referral Sign Up Boost Bonus will be added to your next Cash Back payment, provided that you are a Qualified Referral according to the Refer-A-Friend Program Terms. You will not be a Qualified Referral if you cancel, return, or exchange your Qualifying Purchase, if your Qualifying Purchase hasn’t earned Cash Back, or if your purchase is found to be fraudulent, abusive, unethical, suspicious, or otherwise inconsistent with our Refer-A-Friend Program Terms. These Referral Sign Up Boost Bonus Terms are subject to our Terms & Conditions and Privacy Policy.