TKC Launches Cryptolink API on Sept 9 to Streamline Bitcoin (BTC) Accounting in Japan

Cryptolink–TKC Integration Goes Live Sept 9

Japanese accounting software provider TKC switched on an API integration with Cryptolink, a crypto profit-and-loss calculation service, on September 9, connecting journal-entry data for digital-asset trades directly into TKC's FX Cloud financial accounting systems. The link removes the manual file exports and imports previously needed to move calculated crypto transaction journals into ledgers, and TKC says it is designed to cut transcription work and input errors for corporations and sole proprietors holding Bitcoin (BTC) and other digital assets. Four products in the FX Cloud series are covered: FX2 Cloud, FX2 Cloud (personal), FX MaiStar Cloud and FX MaiStar Cloud (personal) — meaning individual business owners, not only corporate finance teams, are in scope. Cryptolink ingests transaction data from domestic and overseas exchanges as well as wallets and DeFi activity, and could already compute gains and generate journal data; the new step is the direct pipe into TKC's ledgers. The company describes the link as a first in Japan, a claim based on its own survey as of September 8, 2026, covering API connections between crypto P&L services and TKC's FX2 Cloud specifically — not a claim that tax filing itself is now automated. The caveats in the companies' own announcements matter: whether a given client can use the integration depends on contract terms and system customization, and TKC notes some engagements cannot be linked at all. Tax treatment is untouched — under National Tax Agency guidance, gains from selling or spending crypto generally fall into miscellaneous income, with filing requirements depending on each user's situation. Crypto bookkeeping must also capture a widening range of activity, from spot and margin trading to DeFi fundraising such as an IDO and NFT transfers — a burden that compounds for clients who traded through past FOMO cycles and scattered records across venues, the segment our desk tracks via Best Crypto Exchanges comparisons.

Who Votes a Tokenized Share?

A parallel governance gap surfaced the same week in tokenized equities. Securitize President Brett Redfearn said in podcast remarks published on September 11 that the industry still lacks a good answer to a basic question: who actually votes the stock when a tokenized share sits in a wallet that never passed identity checks. His point was that the core issue is not trading convenience but the connection between shareholder registers, ownership and voting power. The US Securities and Exchange Commission drew the same structural line in a January statement, separating tokenization carried out by — or on behalf of — an issuer from tokens minted by unaffiliated third parties; the format moving to blockchain does not change what rights a token confers, which follow the issuance structure and contract. Issuer-led setups can build a path from blockchain wallets to the official register, enabling holder verification, dividends, disclosures and voting. Third-party tokens issued without issuer approval can leave holders' shareholder status unclear — the SEC noted securities-based swaps may convey no ownership, voting or information rights in the underlying asset. The AMC Entertainment and Robinhood dispute made this concrete: CEO Adam Aron objected to Robinhood handling AMC-linked tokens without consent, while Robinhood said its tokens are backed 1:1 by underlying shares yet grant no legal or economic rights or voting power over those shares. Backing, in other words, is not shareholder status. Some infrastructure does exist. Galaxy Digital's 2026 annual meeting disclosure lets tokenized Class A holders connect a wallet to a dedicated website and vote by electronic signature, treating one tokenized Class A share as identical to one conventional share. Securitize itself said in a July SEC filing that it will not tokenize securities without an issuer's explicit permission, and uses KYC and AML status plus smart-contract wallet-balance tracking to keep the official register current. Wallet signatures in that model are deliberate, reviewed actions — not the blind signing of unverified prompts. Readers tracking the market in real time can follow live spot and futures prices on MEXC.

Registers Move On-Chain Next

Read together, the two developments trace one arc: crypto's plumbing is shifting from trading rails toward formal accounting and corporate-law infrastructure. TKC's integration standardizes how crypto journals reach statutory books, while the Securitize SEC filing and Galaxy Digital's voting procedure show shareholder registers themselves migrating on-chain — both anchored in primary sources, the companies' own announcements and regulatory disclosures. What was not disclosed matters as much: TKC gave no adoption figures or pricing, and no issuer-agnostic voting standard yet exists for third-party tokens. If corporate crypto holdings keep growing, expect issuer-led tokenization with built-in KYC to win the compliance argument.