日本語 
Pafin has announced that it has acquired Gtax as a subsidiary and will integrate the cryptocurrency tax calculation service into Cryptact on October 5, 2026. The move brings together two established platforms with the goal of creating a single service for cryptocurrency profit and loss calculations and tax filing support in Japan.
Cryptact, which serves more than 200,000 users, automates profit and loss calculations through imported transaction data and provides information needed for tax returns. Gtax has built its reputation with accounting journal entry features, beginner-friendly tools, and support for individual investors, tax professionals, and businesses.
Once the integration is complete, existing Gtax users will be able to move to Cryptact without disrupting their workflow. Login credentials, transaction records, and profit and loss data will remain available, reducing the effort required during the transition. Gtax’s Guardian cryptocurrency tax support business will also move under Pafin, while members of the Gtax team are expected to join the company to continue developing the platform.
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The consolidation comes as Japan’s cryptocurrency market continues to evolve, with DeFi, NFTs, staking, Layer 2 networks, and multi-wallet trading making tax reporting increasingly difficult. By combining their technology and expertise, Pafin plans to expand support for these transaction types while adapting more quickly to future tax rule changes. The company aims to position Cryptact as the go-to platform for cryptocurrency tax calculations and compliance across individual investors, accountants, and businesses in Japan.
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