Get 30% Off With these Groupon Coupon Codes and Top DealsAs mentioned above, the magic of Groupon is what you make it. Save 30% off with top Groupon promo code, SAVEINMAY, with select bookings now up to 45% off regular prices. Groupon has up to 50% off sightseeing tours now, with an extra 5% off Go City attraction passes when you book with promo code GOCITY5. Get a 20% off Groupon promo code when you subscribe to the brand’s emails. With Groupon membership packages, you can save 50%, get $25 off a one-year Club membership, and $40 off Sam's Club Plus memberships.