What: BNPL and cash-back mobile apps are transforming holiday shopping by driving consumer spending and loyalty through flexible payments and rewards.

Why it is important: The convergence of flexible payments and digital rewards is driving record mobile commerce and reshaping how retailers engage with Gen Z and Millennials.

The holiday shopping landscape is being reshaped as mobile apps offering buy-now-pay-later (BNPL) and cash-back rewards become central to consumer purchasing behaviour. With 60% of U.S. consumers experiencing financial stress this season, many are turning to these financial tools to manage budgets and maximise value. BNPL spending is projected to reach up to $20.4 billion between November and December, with Cyber Monday expected to surpass $1 billion in BNPL transactions for the first time. Major players such as PayPal, Klarna, and Sezzle are enhancing their offerings with cash-back rewards and gamified experiences, while pure cash-back platforms like ShopBack and Venmo Stash are expanding through strategic retail partnerships. These innovations are particularly appealing to Gen Z and Millennials, who value convenience, instant rewards, and financial literacy tools. As mobile commerce is set to account for over half of all ecommerce sales, the integration of flexible payments and digital incentives is redefining loyalty and engagement, making every transaction more rewarding and interactive for today’s shoppers.

IADS Notes: In August 2025, The Economist reported that BNPL’s rapid expansion was transforming retail by increasing consumer spending and driving omnichannel adoption, while also prompting regulatory scrutiny. Fashion Network in November 2024 highlighted research showing BNPL boosts purchase likelihood and overall spending, especially among younger consumers. Liontree’s December 2024 analysis documented record mobile commerce and peak BNPL usage during the holiday season. Forbes in July 2025 discussed new UK regulations requiring affordability checks for BNPL providers, reflecting concerns over rising credit defaults. Finally, BCG in December 2024 noted the evolution of loyalty programs toward gamified, digital-first experiences to meet the expectations of Gen Z and Millennials.

How Buy-Now-Pay-Later and cash back apps drive holiday shopping