Ocean, a Tokyo startup building digital tax-refund infrastructure for tourists, said Wednesday it raised roughly ¥500 million ($3.2 million) in a Series A round that closed across two tranches. New investors include KURONEKO Innovation Fund 2 and ONE-JAPAN Tourism Fund, an investment vehicle backed by travel agency HIS and Japan Asia Investment.
The timing is deliberate. Japan will mandate on November 1, 2026 that all tax-free purchases use an electronic refund system, replacing the current approach where foreign shoppers receive instant exemptions at checkout. That regulatory deadline has accelerated adoption of platforms like Ocean's—though the company declined to say how many merchants have signed on since it reported 200 locations in August.
Ocean's first close happened September 15, bringing in ONE-JAPAN Tourism Fund alongside Dual Bridge Capital and existing backers Z Venture Capital, Delight Ventures and Bluefin Partners. A second close followed October 9 with KURONEKO Innovation Fund 2, a corporate venture vehicle run by Global Brain with logistics giant Yamato Holdings as a limited partner, plus Shizuoka Capital, the investment arm of Shizuoka Financial Group.
A regulatory shift reshapes the market
Under rules published by Japan's National Tax Agency in June of last year, tourists visiting after November 1 will pay full retail prices upfront, then claim refunds once airport customs confirms they're taking goods out of the country within 90 days. The shift eliminates immediate exemptions, which tax officials say created compliance gaps but which retailers and travelers found simpler.
Ocean's software sits in the middle of that new workflow. The platform connects to point-of-sale systems to capture purchase data, then lets travelers submit passport details and choose how they want their money back: bank transfer, payment card, PayPal or WeChat Pay. Shoppers interact with the service through LINE or WeChat Mini Programs. Retailers pay nothing upfront and no monthly fees, according to materials Ocean published in April, though the company hasn't confirmed whether this pricing structure remains current.
CEO Ryo Hoshino came to the role with payments credentials. He previously led WeChat Pay Japan's business development at Tencent, managing integrations with domestic brands like PayPay and au PAY. Before that he worked at trading house Mitsui & Co. Hoshino took over as CEO in November, succeeding founder Takayuki Fukushima, who shifted to a board position.
Ocean launched its LINE Mini App in January, claiming it was the first tax-refund service on LINE's platform based on internal research. A WeChat version arrived in June. By August the startup said it had signed more than 200 merchant locations within six months. It hasn't updated that figure publicly since, and a company representative wouldn't provide current numbers.
Building distribution through POS players
The company has pursued partnerships to reach retailers at scale. In September it announced a tie-up with Recruit to support merchants using the AirREGI and AirPAY systems, with data-linkage features under discussion. Ocean also signed referral deals with UC Card and Kyoto Credit Service, part of Kyoto Financial Group, to tap their merchant networks. In April, telecom operator KDDI bundled Ocean's refund flow with a campaign offering free eSIM codes for its povo2.0 service, linking connectivity with the tax-rebate process in a bid to capture tourist attention early.
For POS vendors, Ocean offers a free API, SDK and DLL to integrate refund functionality across Windows, macOS, Linux, Android, iOS and web environments, according to a March announcement. That approach mirrors how payment processors distribute their technology, though it remains to be seen whether POS companies will prioritize integration before the November cutover.
The competitive landscape includes established operators listed by Japan's Ministry of Land, Infrastructure, Transport and Tourism: Global Blue TFS Japan, Planet (which runs a joint venture with Sumitomo Mitsui Card Company for Global Tax Free's Japan business), Smart Detax and J&J Tax Free. Planet and SMCC said in March they were expanding their Japan networks ahead of the regulatory transition, suggesting incumbents are positioning aggressively to maintain market share.
The prize: a record tourism market
Foreign visitors spent approximately ¥9.5 trillion in Japan in 2025, a record high, spread across roughly 42.68 million arrivals, according to Japan Tourism Agency and JNTO data. Those figures give Ocean and its competitors a sizable addressable market, though tax-free purchases represent only a portion of total tourist spending. The new refund system also introduces friction—travelers must wait for customs verification rather than pocketing savings immediately—which could dampen participation.
Z Venture Capital, which first invested in November, said in a September statement it added more capital in the Series A because it was "convinced that Ocean will transform this domain." ONE-JAPAN Tourism Fund listed Ocean as its first disclosed investment, according to a September 15 notice from HIS. KURONEKO Innovation Fund 2's backing "highly evaluated Ocean's execution capability and future potential," Global Brain said in an October release.
Ocean holds registration number 1-0100-0124-5294-0140-0001 as an approved electronic tax-free operator with MLIT. The company wouldn't detail how it plans to deploy the new capital or discuss merchant adoption beyond the August figure, leaving questions about its readiness for the November transition unanswered. In its September announcement, Ocean said it aims to move beyond basic tax-exemption infrastructure, though it didn't specify what adjacent services it has in mind.
With the regulatory deadline approaching, the startup faces a narrow window to convert partnerships into live integrations and convince retailers to choose its platform over competitors with deeper Japan experience. Whether Ocean's tech-first approach and zero-fee model prove enough to crack a market long dominated by established players will become clear in the coming weeks.
