CoinTrade

口座開設の手順

How to open an account

Source: official guide ↗

1. 1

   Register your email and set a password

   In the CoinTrade app tap "New registration", choose "Individual", enter your email and send the confirmation email. Set a password from the link in the email to finish the login setup.

   1. Install the CoinTrade app (iOS 16+ or Android 11+); the later ID check and personal details can only be done in the app. Tap 「新規登録」 at the bottom of the app's home screen (on a PC, 「無料口座開設」 on the website covers this login setup only).
   2. On 「無料口座開設」, choose 「個人のお客様」 as the customer type, enter your email and tap 「確認メールを送信する」. CoinTrade recommends web mail such as Gmail, Yahoo or Outlook.
   3. When 「確認メール送信完了」 appears, open the email titled 【CoinTrade】登録メールアドレスのご確認 and tap the URL in it to open 「パスワード設定」. If it doesn't arrive, check your spam folder.
   4. Use a password of 12–128 half-width characters with at least three of: lower-case, upper-case, digits and symbols. Enter it again in 「パスワード（確認用）」 and tap 「設定する」. Don't reuse a password from another service.
   5. 「ログイン設定受付完了」 appears and an email titled 【CoinTrade】新規口座開設申込みのご案内 arrives. This only sets up your login; the account application continues in the app.

   Tip You can do this part in a PC browser too, but the later steps need the app.
2. 2

   Log in to the app and verify by SMS

   Log in and tap "Register basic information" on the Holdings screen. A browser opens: enter your mobile number, then the 4-digit code sent by SMS (valid for one hour).

   1. On the app's home screen tap 「ログイン」, enter your email and password and tap 「ログイン」 (turn on 「自動ログイン」 if you want them saved).
   2. Tap 「基本情報の登録」 at the bottom of the 「保有資産」 screen. The 「SMS認証」 page opens in an external browser.
   3. Enter your own mobile number that can receive SMS and tap 「認証コード送信」. A number already registered at CoinTrade can't be used.
   4. Enter the 4-digit code from the SMS and tap 「認証」. If it hasn't arrived within a minute, use 「SMSを再送信する」. The code is valid for one hour.
3. 3

   Accept the documents

   Open and read each of the documents, then tap "Agree to the documents I've read".

   1. After the SMS check, the 「各種交付書面の承諾」 screen lists 「CoinTrade利用規約」, 「契約締結前書面」, 「プライバシーポリシー」, 「取引にあたっての表明確約書」 and 「その他」.
   2. Tap each one to open and read it; a tick appears next to each document you've opened. 「取引にあたっての表明確約書」 contains statements you yourself are making, so read it with care.
   3. Once all are opened, the 「確認した書面に同意する」 button becomes active; tap it if you agree.
4. 4

   Read your ID's IC chip

   Japanese nationals choose a My Number card or driver's licence; foreign nationals choose a residence card or special permanent resident certificate. For a My Number card, enter its signature-certificate password and scan the chip. Without the password, or with a driver's licence, you scan the chip and also take a face photo.

   1. Read the 「口座開設」 screen, tap 「次へ」 and choose your nationality and document: a My Number card or driver's licence for Japanese nationals, a residence card or special permanent resident certificate (3+ months left) for foreign nationals. A document whose details aren't current won't be accepted.
   2. Tap 「CoinTradeアプリを起動する」. The reading is done by Liquid Inc. on CoinTrade's behalf, so read its privacy policy and terms and tap 「同意して次へ進む」.
   3. My Number card, password known: choose 「暗証番号がわかる方」, enter the signature-certificate password (6–16 letters and numbers) and place the card on the phone. Only name, gender, date of birth and address are read. Five wrong entries in total lock it; unlocking is done at your city office.
   4. My Number card, password unknown: choose 「暗証番号がわからない方」, enter your date of birth (type A for Japanese-era years, type B for Western years), the expiry year and the 4-digit security code on the front of the card, read the chip, then take your face photo as instructed.
   5. Driver's licence: if you remember the PINs, choose 「覚えている」, enter the two 4-digit PINs you set when the licence was issued or renewed, read the chip and take a face photo. Three wrong entries in total block reading until restored at a licence centre or police station. If you've forgotten them, pick another document.
   6. Before reading, unplug chargers and earphones and make sure the phone is well charged. With no usable document, or if the chip won't read, apply for the postal check via 「郵送本人確認を利用する」 on the contact form. Using the non-forwardable letter you receive, return one original issued within 6 months: a certified residence record (住民票の写し), a seal registration certificate, or a family register copy with its 戸籍の附票 attached. Photocopies aren't accepted.

   Tip A driver's licence needs the PIN you set when it was issued. If you have no suitable ID or don't know the PIN, you can verify by post instead: you return one original document, such as a residence record (住民票の写し) issued within the last 6 months (photocopies are refused). It takes longer.
5. 5

   Enter your details and submit

   Enter your name, address, occupation, income, assets, experience, purpose and so on across two screens, then tap "Register" on the review screen.

   1. On 「基本情報入力1/2」 enter your name and its katakana reading; the katakana must match your bank account name or yen deposits and withdrawals won't work. Date of birth and nationality are fixed from the chip reading.
   2. Choose your gender. For the address, enter the postal code, press 「住所検索」 and check the prefecture and the rest; only edit the street part if it wasn't filled in or shows garbled characters.
   3. On the same page, answer the radio questions on US tax obligation, PEP status and insider status; choosing the 'applies' side means you can't apply. 居住国 is 「日本」 or 「日本以外」, and you can't apply if you live outside Japan. Answer each one truthfully.
   4. Tick 「すべての内容が最新の情報と一致していますか？」 and tap 「次へ」. If an item you can't edit is wrong, you'll need to redo the online ID check with a document that shows your current details.
   5. On 「基本情報入力2/2」 choose occupation, annual income, main source of income and own assets, then the purpose of trading (several allowed) and your crypto investment experience. The campaign-email box is optional. Tap 「次へ」.
   6. Check everything on 「基本情報入力内容確認」; to change something, tap 「修正する」 at the top right. When it's all correct, tap 「登録」 to apply.

   Tip See "Application questions explained" below for what each question means.
6. 6

   Review, then your account opens

   Review can finish the same day and usually takes a few hours to a few days, or about 2–3 business days if something needs fixing. You can start once the "account opened" email arrives.

   1. After 「登録」, the app shows that your application is under review. It can finish the same day and usually takes a few hours to a few days.
   2. If something needs fixing it takes about 2–3 business days (excluding weekends and holidays). If it takes longer, look for a follow-up email from [email protected], including in spam and trash.
   3. You can start once an email titled 【CoinTrade】新規口座開設が完了しました arrives. Yen can't be deposited before then.
   4. If you chose the postal check, review can't finish until the letter has gone out and your document has come back, so allow extra days.

   Tip Check your spam folder for follow-up emails from [email protected].

   Source: official guide ↗
7. 7

   Set up 2-step verification

   2-step verification is required for trading, crypto transfers and JPY withdrawals (including registering your bank account). Set it up with an authenticator app such as Google Authenticator.

   1. Install a supported authenticator: Google Authenticator (iOS or Android), Authy (iOS or Android) or the iOS password manager. SMS or phone-call codes aren't offered for 2-step verification.
   2. In the app open 「マイページ」 (bottom right) → 「各種情報」 → 「セキュリティ」 → 「二段階認証」, tap 「設定を開始する」 and choose your authenticator.
   3. When asked for a password, enter your CoinTrade login password (entering something else here is a common cause of errors).
   4. Copy the setup key shown and add it manually in the authenticator (any account name; paste the key). The setup key is your backup and can't be shown again after setup, so keep a copy somewhere safe.
   5. Enter the 6-digit code from the authenticator, tap 「設定する」 and check it shows as set. Codes change every 30 seconds, so watch the remaining time as you type.
   6. You need 2-step verification for trading, crypto sends and yen withdrawals (including registering your bank account). Don't delete the authenticator afterwards, and move it from the old phone when you change handsets. If codes fail, set the phone's clock to automatic.

   Source: official guide ↗
8. 8

   Deposit yen and buy

   Go to Deposit/Withdraw > Deposit > JPY in the app and transfer money to the account shown. CoinTrade charges no deposit fee, but you pay your bank's transfer fee. There's also a free "scheduled deposit" that pulls a set amount from your bank account each month.

   1. Tap 「入出金」 → 「入金」 → 「日本円」 on the home screen to see the account to transfer to.
   2. Transfer from a bank account in your own name, by online banking or ATM. Money sent under a different name, such as a family member's, has to be returned through a recall (組戻し), which takes about a week to 10 business days.
   3. Deposits are usually credited in about 15 minutes (sometimes hours), and you get an email. Every Monday 0:00–7:00 is real-time deposit maintenance; transfers made then are credited after 7:00 on the next business day. No deposit fee, but you pay your bank's transfer fee.
   4. For an automatic monthly deposit, go to 「定期入金」 in マイページ → 「引落口座を登録する」, register your bank account on the partner site and set an amount of ¥500 or more (free).
   5. To buy, tap 「売買」 on the home screen, pick a coin, tap 「購入」, enter the amount and confirm with 「購入する」. You can buy from ¥100, but sales-desk prices include a spread. Trading stops for maintenance every Wednesday 12:00–18:00.

   Tip Transfer from an account in your own name. Money sent from, say, a family member's account has to be returned.

   Source: official guide ↗

申込フォームの質問と答え方

Application questions explained

What each question means and how to answer it accurately. Always answer truthfully. Answers that don't match reality lead to rejection or a frozen account.

スムーズに開設するコツ

Tips for a smooth signup

• Check your My Number card's signature-certificate password (6–16 characters) or your driver's licence PIN in advance. If you've forgotten the My Number password, ask at the city office where you're registered.
• Apply from the smartphone app. A PC only handles the login setup; the ID check and personal details are app-only.
• Every trade carries a spread because it's a sales desk only, so it suits recurring buys and staking for the long term better than frequent trading.
• Each JPY withdrawal costs ¥550, so withdraw in larger, less frequent amounts. Remember you can't trade during maintenance on Wednesdays from 12:00 to 18:00.
• If you use point sites such as Moppy, you can get started by exchanging points instead of depositing cash.