Klaviyo published new discounting research with ProfitPeak saying low discounters grew GMV 12% year over year while deep discounters grew 6%, and that brands running 11 or more promotional events a year saw profit margins fall 11%. Source: Klaviyo, “Your Discount Strategy Is Making You Poorer — Here's the Data” (published May 20, 2026).
This is a category-language move. Klaviyo is teaching merchants to ask whether another promotion creates real incremental demand or just subsidizes buyers who would have purchased anyway. That pushes the market toward margin-preserving retention and recovery tactics instead of reflexive couponing.
Klaviyo is telling merchants that constant discounting is a growth tax. Tailored should use that shift to sell a better alternative: close hesitant buyers with stronger conversations before the brand gives away more margin.