Cryptact Integrates Gtax to Become the Industry Standard for Cryptocurrency Profit and Loss Calculation Services in Japan

pafin Inc. (Headquarters: Chiyoda-ku, Tokyo; Joint Representative Directors: Azmudeh Amin / Gaku Saito), the operator of "Cryptact," an automated cryptocurrency (crypto asset) profit and loss calculation service, has made Gtax Inc. (Headquarters: Chiyoda-ku, Tokyo; Representative Director: Gaku Saito), the operator of the cryptocurrency profit and loss calculation service "Gtax," a subsidiary. Gtax will be integrated into Cryptact in October 2026, unifying the services. Existing Gtax users will be able to seamlessly transition to Cryptact's services while retaining their current usage environment, including login information. By consolidating the expertise and technology cultivated by each company, both aim to become the de facto standard for cryptocurrency profit and loss calculation and tax filing support in Japan.

Overview of Service Unification

"Cryptact" is a cryptocurrency profit and loss calculation platform used by over 200,000 domestic users. It automatically calculates profits and losses simply by importing transaction data and provides the necessary information for tax filing in a one-stop manner. On the other hand, "Gtax" is an established service that has provided profit and loss calculation and tax processing support for individual investors, tax accountants, and corporate users, with strengths in its accounting journal entry function and user-friendly interface for beginners.

Both companies are proceeding with preparations for the service unification scheduled for October 5, 2026 (Mon). After the integration, Gtax users will be able to use Cryptact in the same environment as they currently do, including profit and loss results, transaction data, and login information. The service provision will transition seamlessly, minimizing the burden on existing users.

Furthermore, the cryptocurrency tax filing support business "Guardian," previously operated by Gtax Inc., will be taken over and developed by pafin Inc. Members of Gtax Inc. are also scheduled to join pafin, and service improvements will continue by leveraging pafin's technological infrastructure.

Background of Service Unification

The domestic cryptocurrency market is steadily expanding its base of individual investors, driven by the increasing participation of institutional investors and the development of Web3-related policies. Transaction types are also diversifying to include DeFi (Decentralized Finance), NFTs, staking, and L2 (Layer 2), leading to an annual increase in the complexity of tax calculations spanning multiple exchanges and wallets.

In this context, Cryptact and Gtax have supported Japan's cryptocurrency investor and tax accountant communities for many years, each with their distinct strengths. By consolidating Gtax's strengths into Cryptact, pafin aims to maximize value in terms of user convenience, coverage, and speed of tax compliance through service development and deployment.

Statements from Representatives

Gaku Saito, Joint Representative Director, pafin Inc.

"Cryptact and Gtax have supported the practical work of Japan's cryptocurrency investor and tax accountant communities for many years. By bringing the two services together, the value delivered to users will be even greater. We will provide an environment that liberates users from the complexities of tax filing and allows them to focus on their investment activities and asset building, as an industry standard."

Keisuke Okada, Director, Gtax Inc.

"I would like to express my deepest gratitude to the users and partners who have supported Gtax's growth to date.

The integration with Cryptact, a leader in the industry, is a major step forward in advancing Japan's cryptocurrency infrastructure to the next stage. By combining the know-how of both services and removing the barrier of complex profit and loss calculations, we will establish a world where everyone can confidently focus on trading and asset building. We hope you will look forward to our future evolution."

Future Outlook

With the integration of Gtax as a milestone, pafin will build a service infrastructure that consistently supports cryptocurrency profit and loss calculation, tax processing, and asset management through Cryptact. We will continue to expand support for new transaction types such as DeFi, NFTs, staking, and L2, and will also proceed with rapid adaptation to tax system reforms by leveraging the expertise of both companies.

By utilizing the knowledge of both companies, we aim to become the de facto standard for cryptocurrency profit and loss calculation that is easy to use for all stakeholders, including individual investors, tax accountants, and corporate users. Detailed integration schedules and migration support policies for existing Gtax users will be announced sequentially towards the planned integration date of October 5, 2026 (Mon).

Service Overview

Cryptact

Cryptocurrency profit and loss calculation, made simple. A leading domestic cryptocurrency profit and loss calculation platform used by over 200,000 users in Japan. Provides automated cryptocurrency profit and loss calculation and asset management services, supporting tax filing tasks.

URL: https://www.cryptact.com/

Gtax

Provides cryptocurrency profit and loss calculation functions and tax processing support for individual investors, tax accountants, and corporate users. Strengths include its accounting journal entry function and user-friendly interface for beginners, with a tax accountant partner network and corporate support system. *Gtax will be integrated and migrated to Cryptact on October 5, 2026.

URL: https://crypto-city.net/

Company Overview

Company Name: pafin Inc.

Location: Frontier Kojimachi 5F, 3-2-4 Kojimachi, Chiyoda-ku, Tokyo 102-0083

Joint Representative Directors: Azmudeh Amin / Gaku Saito

Established: January 2018

URL: https://www.pafin.com/

Official Youtube Channel: https://www.youtube.com/@pafin