Market Size for Buy Now, Pay Later (BNPL) App in 2026 [Example]

The total addressable market (TAM) for Buy Now, Pay Later (BNPL) services can be calculated by considering the global e-commerce market, which was valued at approximately $4.9 trillion in 2021 and is expected to grow. A significant portion of this market is likely to utilize BNPL services, particularly younger consumers who prefer flexible payment options. Assuming that about 50% of the e-commerce transactions could utilize BNPL, we estimate the TAM at around $2.5 trillion, representing an engaged customer base of about 1.5 billion users worldwide who are familiar with or interested in BNPL options.

This estimate includes diverse demographics beyond traditional customers, such as online shoppers, retailers offering BNPL, and industries like travel, electronics, and furniture that are likely to embrace this payment flexibility.

The serviceable addressable market (SAM) for our BNPL app would focus on regions with a significant proportion of online shoppers who have access to BNPL services. Given the conservative approach, we estimate that around 20% of the TAM can realistically be targeted through our marketing strategies. This results in a SAM of approximately $500 billion, assuming an average spend of $1,667 per user annually, which reflects a typical spending pattern of those likely to use BNPL services based on existing market studies.

This customer base consists of approximately 300 million people, primarily located in developed countries where BNPL adoption is highest, including the US, UK, Germany, and Australia.

The serviceable obtainable market (SOM) represents the portion of the SAM that our BNPL app can realistically capture within the first year. Given the competition and the need to establish market trust and credibility, it's realistic to aim for capturing about 1% of the SAM, which translates to approximately $5 billion in first-year revenue.

This equates to 1.5 million customers who would engage our service within the first year. This conservative estimate accounts for marketing effectiveness and the learning curve that comes with launching a new financial app, ensuring expectations remain grounded and achievable.