Boost and Airwallex Partner to Streamline Cross-Border B2B Card Payments

Boost Payment Solutions has entered a commercial arrangement with Airwallex, the Melbourne-founded fintech now providing global processing and acquiring infrastructure for Boost's B2B card payments operations. The deal, live for five months, has already generated a near ten-fold increase in payment volume processed through Airwallex's rails and brought more than 270 international supplier accounts onto the platform.

The collaboration targets a persistent friction point in cross-border commercial card acceptance: suppliers face slow onboarding, high payment failure rates, settlement delays, and processing costs that often make wire transfers more appealing. Boost says the integration cuts supplier onboarding to as few as two business days, reduces payment failure rates, and routes eligible high-value transactions to qualify for large-ticket interchange rates. European payment flows also benefit from optimised scheme fees.

Dean M. Leavitt, founder and chief executive of Boost Payment Solutions, framed the partnership as an infrastructure consistency play.

Global B2B payments shouldn't become more complicated simply because a business crosses a border. By combining their global processing capabilities with our specialised B2B expertise, we can continue raising the bar for the customers and suppliers we serve.

The B2B cross-border card market has been shifting away from wire transfers and paper cheques as buyers seek the working-capital float, rebate income, and data enrichment that cards provide. Historically dominated by traditional banking rails, the segment is now attracting infrastructure providers including Convera, Nuvei, and Flywire, while banking-as-a-service layers increasingly compete from below.

The division of labour is straightforward. Airwallex holds more than 85 licences across North and Latin America, Europe, the Middle East, and Asia-Pacific, giving it a regulated acquiring footprint that would take years and significant capital to replicate independently. Boost, founded in New York in 2009 and active in more than 180 countries, brings proprietary technology for large-ticket card optimisation and the supplier-side commercial relationships that acquiring infrastructure alone cannot provide.

Neither company disclosed revenue figures, absolute processing volumes, or the commercial structure of the arrangement. The ten-fold volume growth figure, while notable, should be read in context: rapid increases from a low base are common during active onboarding pushes. The more durable signals will be retention rates among those 270-plus suppliers and whether average transaction values justify the large-ticket interchange positioning.

European interchange caps introduced under the Interchange Fee Regulation have compressed margin on consumer card flows, making B2B and commercial card corridors proportionally more attractive to acquirers. At the same time, PSD3 and the forthcoming Payment Services Regulation in the EU are expected to sharpen rules around cross-border payment transparency and failure-rate disclosure, which could raise the bar for the kind of performance claims Boost and Airwallex are making.

Airwallex's licence count and dual headquarters in San Francisco and Singapore reflect a deliberate strategy to be domestically regulated in major corridors rather than relying on passporting. That approach becomes more commercially durable as regulators worldwide move away from light-touch treatment of non-bank payment firms.

For Boost, the partnership is a way to inherit Airwallex's regulatory infrastructure without bearing the full compliance overhead internally. The next milestone to watch is whether the partnership extends to additional acquiring markets or whether Boost eventually seeks its own acquiring licences in key corridors.

The test for both companies will be moving beyond the initial onboarding surge to demonstrate sustained supplier retention and transaction-value growth that justifies the large-ticket interchange thesis at the core of the commercial model.