Coincheck Review 2026: Fees, Security & Verdict

Coincheck Overview

Coincheck is one of Japan’s largest cryptocurrency exchanges, active since 2014 and now part of a Nasdaq-listed group. It lists 16 assets across 16 markets, with reported spot volume of $13,029,010 over 24 hours.

It is also the exchange that lost around $530 million of NEM in January 2018 — at the time the largest crypto theft ever recorded. Any honest review has to lead with that, because it is the single most important thing about the venue’s history.

What happened afterwards is arguably more informative than the hack itself, and this review covers both.

Coincheck Pros & Cons

• No trading commission on the main buy-and-sell product.
• Regulated by Japan’s Financial Services Agency and owned by a listed financial group.
• Genuinely easy to use — this is one of the better exchanges for a first purchase.
• Japan-specific extras, including paying electricity bills in Bitcoin and automated periodic purchases.

Against that:

• Suffered the January 2018 NEM theft, roughly $530 million.
• Only 16 assets — a narrow catalogue by any standard.
• The zero-commission product earns through the spread instead, which is not the same as free.
• Built for the Japanese market; access and support outside Japan are limited.

Pros & cons for Coincheck have not been entered in the database yet.

Coincheck Sign-up & KYC

Registration takes an email address and a password, followed by identity verification with a document and a selfie. Verification is mandatory before trading — Japanese regulation gives the exchange no discretion here.

A Japanese bank account is needed for yen deposits and withdrawals, which in practice makes this an exchange for people resident in Japan.

Coincheck Security & Regulation

In January 2018, around $530 million of NEM was stolen from a Coincheck hot wallet — the largest cryptocurrency theft recorded at the time. The cause was mundane and damning: the assets were held in an internet-connected wallet without multi-signature protection.

Coincheck reimbursed affected customers. Monex Group acquired the exchange in April 2018 and rebuilt its security and compliance under Japanese FSA supervision, and there has been no comparable incident since. The business is now part of Coincheck Group N.V., listed on Nasdaq and led by chief executive Pascal St-Jean.

How much weight to put on a 2018 breach is a judgement call. The failure was real, the remediation was real, the regulator has supervised the venue continuously since, and users were made whole. That is a better post-incident record than most exchanges can show — but it is not the same as never having failed.

Coincheck Supported Cryptocurrencies

Coincheck lists 16 assets across 16 markets — Bitcoin, Ethereum, XRP, Litecoin and a short list of others.

That is a narrow catalogue, and deliberately so. Japanese regulation makes listing a new asset a slow, supervised process rather than a commercial decision, which is why Japanese exchanges look thin next to offshore venues listing thousands of tokens.

Read it as a constraint with a benefit attached: fewer assets, but every one of them has cleared a regulatory review.

Coincheck lists 16 spot assets.

Spot coins 16

BTCETHXRPDOGEIMXSHIBIOSTETCDAIXEMFNCTBCHMONAFPFPLLSKCHZ

Coincheck Trading Platform

The app is the product. Coincheck’s mobile experience is one of the most polished in the Japanese market and is the main reason for its retail share — buying crypto takes a few taps and no prior knowledge.

Beyond trading there is crypto lending, automated periodic purchases that average into a position monthly, and Coincheck Denki, which lets Japanese users pay electricity bills with Bitcoin or earn it back as a rebate. There is no futures or margin product.

Coincheck Trading Fees

Coincheck charges no maker or taker commission on its main buy-and-sell service. That is the headline and it is accurate as far as it goes.

It is not the whole cost. A zero-commission product monetises through the spread — the gap between the buy and sell price you are quoted — and on Coincheck that spread is wide enough to matter. For a small purchase it is convenient; for repeated trading it is more expensive than a venue charging an explicit ten basis points.

The exchange’s order-book product prices differently from the simple buy/sell screen, so check which one you are using. Yen bank deposits are free; deposits from non-Japanese accounts carry a flat charge of about ¥2,500. Yen withdrawals cost around ¥400.

“No fees” and “no cost” are different claims. Compare the quoted buy and sell prices at the same moment to see what you are actually paying.

The median across the 64 centralized exchanges (CEX) we track, per fee type. Coincheck is only ever compared with its own kind. "Average" means within half a basis point of that median.

Coincheck Customer Support

Support is by ticket and help centre, and it is Japanese-first. Response times are reasonable domestically; English coverage is thinner.

Coincheck Deposit Methods

Yen arrives by bank transfer, free from a Japanese account and around ¥2,500 from a foreign one. Crypto deposits are free and priced only by the sending network.

Coincheck Deposit Methods

Bank TransferCryptocurrencies

Coincheck Withdrawal Methods

Yen withdrawals go to a Japanese bank account for a flat fee of roughly ¥400. Crypto withdrawals are charged per asset and per network — check the figure before confirming, as it varies more than most people expect.

Coincheck Withdrawal Methods

Bank TransferCryptocurrencies

Coincheck Alternatives

See every Coincheck alternative compared →

Bottom Line

For a Japanese resident wanting a simple, regulated way to buy crypto, Coincheck is a reasonable choice — easy, supervised, and backed by a listed parent. Watch the spread rather than the advertised zero commission.

For everyone else it is largely inaccessible, and with 16 assets there is little reason to work around that.

The 2018 hack should inform your view without ending it. What a venue does after it fails is the more useful signal, and on that test Coincheck did better than most.

Visit Coincheck ↗