Rakuten's Best-Ever Referral Bonus: $50, 5K Amex Points, or 5K Bilt Points for You and a Friend
Refer a friend to Rakuten by Sept 30, 2026, and you both get $50 cash back, 5,000 Amex Membership Rewards, or 5,000 Bilt points after the friend spends $50 within 90 days.