Pafin
Tokyo, JP · 2 known investors
Pafin is a FinTech startup that develops technology solutions to enable and support peer-to-peer transactions across assets, services, information, ideas, and experiences. The company serves individuals and businesses navigating decentralized peer-to-peer marketplaces, particularly in crypto, finance, and investment sectors.
Also known as Pafin Inc. · 株式会社pafin
Founders & leadership
Investors · 2
Company profile
researched Aug 2026Pafin (株式会社pafin) is a Tokyo-based financial technology company that builds software for the cryptocurrency, finance and investment sectors, positioning itself as infrastructure for Web3. Its principal product is Cryptact, a service that automatically calculates cryptocurrency gains and losses for tax filing purposes and provides portfolio management in the same tool. A second product, defitact, is described as a "household ledger for Web3": it visualizes blockchain transactions to help users manage DeFi positions, wallets and NFTs, and can be tried free of charge without registration.
The company is registered as an investment advisory and agency business with Japan's Kanto Local Finance Bureau (registration number 3326, registered 2022-04-08) and is a member of the Japan Investment Advisers Association. Its stated capital, including capital reserves, is 1.364 billion yen. Pafin is co-led by two representative directors, Amin Azmude and Gaku Saitoh, with a broader team covering engineering, DeFi, marketing, customer success, and domestic and overseas business development, alongside a business alliance with tax accountancy firm Tamaransaka Zeirishi Hojin.
Business model
Pafin develops and operates its own software products for crypto investors and businesses, led by Cryptact for crypto tax calculation and portfolio management and defitact for Web3 transaction tracking. defitact is offered for free trial without registration.
Latest developments
In July 2026 Pafin's Gtax integration and AI-linked features were covered by Japanese crypto media outlets CoinPost and Atarashii Keizai. On 2026-07-02 the company announced that Cryptact supports Australian tax filing and cryptocurrency taxation. In August 2026 it announced speaking appearances at an OKJ Academy session with Metaplanet and a seminar on JPYSC lending and related taxation.
▸Full profile — market position, technology, go-to-market, geography, history
Market position
Positions itself as a FinTech company staffed by specialists with experience in both finance and technology, aiming to serve as infrastructure for Web3 internationally.
The company cites in-house expertise spanning both finance and technology, a leadership team experienced in crypto, finance and investment, and rapid delivery of services with support and after-care.
Technology
The products automate calculation of cryptocurrency profit and loss for tax reporting, provide portfolio management, and visualize on-chain transactions across DeFi, wallets and NFTs. The company has also announced AI-linked functionality and integration with Gtax.
Go-to-market
Individuals and businesses active in cryptocurrency, finance and investment, including crypto holders who must calculate gains and losses for tax filing and users of DeFi protocols, wallets and NFTs.
Geography
Headquartered in Chiyoda-ku, Tokyo (3-2-4 Kojimachi, Frontier Kojimachi 5F). The company has an overseas business development function and extended Cryptact to cover Australian tax filing and crypto tax rules in 2026.
History
Pafin was established in January 2018. In April 2022 it obtained registration as an investment advisory and agency business with the Kanto Local Finance Bureau and joined the Japan Investment Advisers Association. In September 2025 it participated in founding a separate organization together with the University of Tokyo and SoftBank Corp. that supports the development of medical AI through the collection, processing and distribution of medical imaging data. In 2026 the company announced Cryptact support for Australian tax filing and crypto tax rules, and reported media coverage of its AI integration features and Gtax integration.
Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 4
launches, deals, and filingsCoinPost and Atarashii Keizai published articles on the company's AI-linked functionality and Gtax integration.
Participated in establishing an organization with the University of Tokyo and SoftBank Corp. and others to support development of medical AI through collection, processing and distribution of medical imaging data.
Registered with Japan's Kanto Local Finance Bureau (Financial Instruments) No. 3326 as an investment advisory and agency business; member of the Japan Investment Advisers Association.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
▸Research sources · 1
primary sources listed
- Pafinpafin.com · web
1 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Pafin do?
- Tokyo FinTech company building crypto tax, portfolio and Web3 transaction-tracking tools including Cryptact and defitact.
- Who are Pafin's investors?
- Pafin's investors include DG Daiwa Ventures, Sony Ventures Corporation.
- Where is Pafin headquartered?
- Pafin is headquartered in Tokyo, JP.