Coincheck exchange profile: services, fees, custody and eligibility

The launch included market, limit, stop, speed-order and close-all controls for leveraged positions. Access was being rolled out to qualifying users, so the existence of an app menu or announcement is not proof that an individual account has been approved.[6]

For spot automation, a market buy specifies a yen budget while a market sell specifies coin quantity. The API also supports a stop trigger and a post-only instruction; post-only cancels an order that would immediately take liquidity. These parameters matter when reproducing a fee example or moving a strategy from manual orders to an automated client.[9]

The Marketplace tariff states an embedded fee-equivalent of 0.1–5.0%, or 1.7–7.0% for certain assets; it can exceed those ranges in stressed markets. The executable purchase and sale quotes therefore matter even when the explicit trading commission is zero.[1]

Coincheck Leverage lists no execution, internal transfer or forced-liquidation fee, but charges 0.04% of marked position value at 00:00 Japan Standard Time. Its daily reference uses the bid/ask midpoint immediately before that time. Spread is an additional cost. A position closed before the charge time and one carried through it can therefore have different costs despite identical holding durations.[28]

The leverage tariff rounds fractional yen charges upward for each pair, with a minimum of JPY 1. It also sets separate order, daily new-position and total-position ceilings. These are operational limits rather than a single account-wide leverage allowance; capacity available in one instrument does not establish capacity in another.[3]

The movement restriction begins at the time a quick or convenience-store deposit is credited and lasts seven days. It covers equivalent-value crypto transfers, yen withdrawals and specified internal transfers. Buying crypto during the period does not turn the restricted funding into immediately withdrawable assets. This distinction is material when funding a purchase intended for an external wallet.[17]

Yen withdrawal is available through the app or website. Crypto-only holdings must first be sold for yen, and outstanding buy orders can reserve cash that would otherwise appear available. The published limit page requires enough balance for the JPY 407 fee plus at least JPY 1 to remit. A displayed total balance is consequently different from the amount a customer can withdraw immediately.[25][26]

For relevant transfers to exchanges in Japan and other designated jurisdictions, Coincheck uses TRUST to transmit Travel Rule information. An address and matching blockchain are not the whole transfer workflow: the destination service and recipient information also have to satisfy the current compliance process. The applicable destination and jurisdiction rules should be checked for the actual transfer rather than inferred from the asset’s listing on Coincheck.[18]

The 2026 annual filing describes the January 2018 theft of approximately 526.3 million NEM, valued at about JPY 46.6 billion at the time. It says affected customers were compensated and the lawsuits concerning compensation calculations have all been resolved. That is a historical incident and disclosed resolution, not evidence that present custody arrangements eliminate operational loss.[14]

Passkeys are required for registering crypto destinations, sending crypto, registering withdrawal bank accounts and withdrawing yen. The current help material distinguishes these requirements from simply starting an ordinary account. Having a password or a working two-factor code does not, by itself, satisfy every withdrawal authentication step.[12]

The lending agreement normally prevents early termination or sale during an accepted loan’s term, while Coincheck can return assets early under its contract. Customers should distinguish an asset still awaiting lending approval from one already lent: the latter cannot simply be treated as an immediately transferable custody balance.[8]

Since 1 January 2026, new-account customers must submit tax-residency self-certification after identity verification; account opening and trading remain incomplete without it. The declaration asks for tax-residence countries, taxpayer identification numbers or a permitted reason for their absence, and an explanation where tax residence differs from the registered address. Existing customers are also being asked to provide declarations. This is an account-compliance requirement, not a determination of a customer’s tax liability.[20]

For foreign residents, the identity FAQ specifies remaining document validity and can require a renewed Residence Card after account opening. An approved account should therefore not be assumed to remain unrestricted after the document or residence permission expires. The separate nationality requirement for leveraged trading is narrower than this ordinary spot-document route.[19][5]

The phone-change guidance describes using the old device’s passkey to authenticate when moving between iPhone and Android, then registering a passkey on the new device. If the relevant credentials or phone number are no longer usable, it directs customers to the official form’s login and device-change categories. Recovery may require company review; the existence of a recovery procedure does not promise immediate withdrawal access.[27]

The registered operator is the Japanese company that contracts for these services. The exchange registration and financial-instruments registration should remain separate in a comparison: they cover different activities and are linked here to the same matched legal entity. The public register is evidence of the stated registration entry; it does not establish that every proposed transaction, asset or customer is eligible.[15][16]

These figures support Coincheck’s inclusion as a substantial Japanese platform, but the three measures answer different questions. Accounts measure verified relationships, assets measure custody value on a date, and Marketplace volume measures one execution channel over a quarter. Combining them into a current active-user figure or a global volume ranking would misstate the company’s disclosure.[13]

The Dutch parent, Coincheck Group N.V., trades on Nasdaq under CNCK; the group’s history includes Monex’s 2018 acquisition and the public-market transaction completed in December 2024. Parent ownership and a stock-exchange listing should be distinguished from the Japanese company’s contract with a customer. The group’s institutional and acquired businesses do not automatically become services available through an ordinary Coincheck login.[14]

Operator

Coincheck, Inc. (コインチェック株式会社)

Exchange model

Centralised

Service scope

Japanese Marketplace and exchange/API spot services; separate lending, ETH staking and approved cash-settled OTC leveraged accounts.

Client types

Retail clients; Institutional clients

Pricing publication

Public and quoted pricing

Pricing scope

Public exchange and service tariffs coexist with Marketplace and leveraged bid/ask quotes.

Funding scope

JPY bank, convenience-store and quick deposits; yen bank withdrawals and supported crypto transfers. Quick/convenience funding creates a seven-day movement hold.

Custody and asset handling

Ordinary cash trust and segregated crypto custody; accepted loans have different segregation and repayment treatment. Leveraged cash margin has a separate trust.

Client eligibility

Ordinary accounts serve eligible Japan residents. Leverage additionally requires Japanese nationality, access within Japan, suitability approval, My Number Card and passkey; initial service is iOS.

Support

Official support form and Japanese complaint line; distinct crypto-service and financial-instruments ADR routes.

Authorisation and registration scope

Coincheck, Inc. independently matched to Japan FSA crypto exchange 00014 and financial instruments 3540 registers; product and customer limits remain separate.

Exchange metadata checked 20 Oct 2026Source 15Source 16Source 7Source 4Source 1Source 17Source 5

The tariff allocates 70% of the defined protocol-reward pool using its eligible-balance formula, whose denominator includes all customer holdings. Consequently, it should not be simplified into a guaranteed annual yield or a uniform 30% deduction from every customer’s own validator reward.[1]

An API cancellation request and a confirmed cancellation are separate states. Clients should check cancellation status and fills instead of assuming that sending a request prevents a race with execution. The WebSocket documentation says execution events are not redelivered; REST order and transaction history provide the recovery path for missed updates. Fee values in programming examples are illustrative and should not override the current service tariff.[9]

The CFD manual requires 50% margin and an additional new-order buffer: 95% of margin equity (deposited margin plus unrealised profit or loss) must cover existing maintenance margin plus the new order’s initial margin. A margin deficiency assessed at 16:00 JST must be cured by the next 15:00 JST; a price rebound alone does not count as curing it. A separate, continuously monitored margin ratio below 75% triggers liquidation without waiting for that deadline. The iOS-specific manual also describes company-assisted closure after a switch to unsupported Android.[4]

Current per-order leverage maxima are 1 BTC, 10 ETH and 5,000 XRP; the corresponding aggregate position maxima are 10 BTC, 100 ETH and 50,000 XRP. Daily opening limits are separate. These controls can matter before the advertised 2x leverage cap is reached, particularly when an account holds several orders or positions in the same underlying asset.[3]