What Legal Requirements Must I Follow When Offering Coupons?

Make every coupon clear and honest. Say what the discount is, what it applies to, any minimum spend or exclusions, and when it expires. If you compare against a "was" or regular price, it has to be a price you genuinely charged.

Each regulator puts it a little differently:

• Australia: the ACCC's guidance on advertising and promotions.
• United States: the FTC's Guides Against Deceptive Pricing, which cover former-price comparisons and bargain offers.
• United Kingdom: the ASA's guidance on promotional savings claims, which says a "was" price must be a genuine usual selling price.
• Canada: the Competition Bureau's guidelines on consumer rebate promotions, which cover hidden conditions.

In Gleam, put the conditions next to the code. A Coupon Capture shows the code inside the popup, so add the expiry and exclusions to its text rather than leaving them on another page.