Transferring cryptocurrency between exchanges is a fundamental skill for any digital asset investor. This guide walks you through how to deposit Bitcoin from GMO Coin (a Japanese exchange) to the overseas exchange OKX, and how to withdraw Bitcoin back from OKX to GMO Coin. Even if you're new to crypto, this step-by-step tutorial makes the process easy and secure.
While OKX doesn’t offer full Japanese customer support, its interface is intuitive—especially when following visual guidance. Once you’re comfortable using international platforms like OKX, you’ll unlock access to advanced trading tools, higher liquidity, and unique financial products not available on domestic exchanges.
Whether you're moving funds for trading, staking, or portfolio diversification, understanding cross-exchange transfers is essential.
👉 Discover how to securely manage your crypto assets on a global exchange
How to Deposit Bitcoin from GMO Coin to OKX
Before transferring funds, ensure you’ve already created an account on OKX and completed identity verification (KYC). If not, refer to OKX’s official onboarding guide.
Also, make sure you have Bitcoin (BTC) in your GMO Coin wallet. If not, purchase a small amount first.
Step 1: Prepare Your OKX Deposit Address
- Open the OKX app.
- Tap the three-line menu (☰) in the top-left corner.
- If you're using the Lite version, tap “Switch to Pro” to access full features.
- Go to Assets > Funding > Deposit.
- Select On-chain deposit.
- In the search bar, type BTC and select Bitcoin (BTC-Bitcoin) as the network.
🔔 Critical: Always confirm that the deposit network matches both sender and receiver. For Bitcoin, use BTC-Bitcoin only—never choose ERC-20 or other networks unless explicitly supported.
- You’ll see your unique deposit address and QR code. Tap the address to copy it securely.
- Ensure the destination wallet is set to Funding Account, where deposited assets are held before trading.
Step 2: Send Bitcoin from GMO Coin to OKX
Now switch to the GMO Coin app:
- Tap “Deposit/Send” (預入/送付).
- Select BTC.
- Tap “Add new send destination” (新しい送付先を追加する).
- Choose “Outside GMO Coin”, then “Exchange or service-specific wallet”, followed by “Yourself” (ご本人さま).
- Scroll down and tap “Go to destination registration screen”.
Enter the following:
- Destination Name: e.g., OKX
- Bitcoin Address: Paste the copied OKX deposit address
- Send Destination: Select “Others”, then type OKX
- Fill in recipient name (in English), address, and birthdate
- Tap “Next”
After submitting, GMO Coin will send a confirmation email with a time-limited link (valid for 10 minutes). Follow the link, log in, and complete two-factor authentication via SMS.
Wait about 5 minutes for the destination to be registered.
Once ready:
- Return to Send > BTC.
- Select the newly added OKX address.
- Confirm details and check the box.
- Enter the amount—selecting “All” is allowed even if below minimum thresholds.
- Choose purpose: “Cryptocurrency trading/exchange”.
- Request an SMS authentication code.
- Enter the 6-digit code, check required boxes, and tap “Confirm”, then “Execute”.
Your transfer has now been initiated. Wait for blockchain confirmation—this typically takes 10–30 minutes depending on network congestion.
👉 Start transferring your crypto with confidence on a trusted global platform
How to Withdraw Bitcoin from OKX to GMO Coin
Withdrawing funds back to a domestic exchange like GMO Coin is just as straightforward.
Step 1: Get Your GMO Coin Deposit Address
- Open the GMO Coin app.
- Tap Deposit/Send > Deposit > Bitcoin (BTC).
- Copy your Bitcoin deposit address.
✅ Always double-check that the network is BTC-Bitcoin—mismatched networks risk permanent loss.
Step 2: Initiate Withdrawal from OKX
- Open the OKX app.
- Tap Assets > Withdraw.
- Select BTC as the cryptocurrency.
- Paste the GMO Coin address into the recipient field.
- Choose network: BTC-Bitcoin.
- Enter withdrawal amount—or tap Max to send available balance minus fees.
💡 Example: If you have 0.00743053 BTC and the fee is 0.00032 BTC, you can withdraw up to 0.00711053 BTC.
- Review details and tap Submit.
- Confirm warnings and tap Continue.
- You’ll receive a 6-digit email verification code—paste it.
- Then enter your Google Authenticator code (if 2FA is enabled) and tap Confirm.
The withdrawal is now processing. Track progress in your transaction history. Funds usually arrive within 20–60 minutes.
When complete, your OKX balance will reflect the deduction—and your GMO Coin account will show the incoming deposit shortly after.
Key Tips for Safe Crypto Transfers
To avoid mistakes and protect your assets:
- ✅ Always copy-paste addresses—never manually type them
- ✅ Match networks exactly: BTC-to-BTC, ETH-to-ERC20, etc.
- ✅ Confirm withdrawal fees before submitting
- ✅ Test with a small amount first when using a new destination
- ✅ Enable 2FA on both sending and receiving platforms
Mistakes in crypto transfers are irreversible—once sent, lost coins cannot be recovered.
Frequently Asked Questions
Q: Can I use OKX without knowing English?
Yes! While OKX doesn't offer full Japanese support, most interfaces are logically designed and easy to navigate with translation tools or step-by-step guides like this one.
Q: Is it safe to transfer between domestic and overseas exchanges?
Yes—transfers are secure as long as you follow best practices: verify addresses, match networks, and use trusted wallets.
Q: Why does GMO Coin require email confirmation for new destinations?
This is a security feature called “whitelisting.” It prevents unauthorized withdrawals even if your account is compromised.
Q: What happens if I send BTC using the wrong network?
If you send Bitcoin via an incompatible network (e.g., BEP20 instead of BTC), the transaction may fail or result in permanent loss unless the receiving platform supports recovery.
Q: Are there daily transfer limits on OKX?
Yes—limits depend on your verification level. Higher KYC tiers allow larger withdrawals.
Q: How long do deposits take from GMO Coin to OKX?
Typically 10–30 minutes, depending on Bitcoin network congestion and miner fees.
Final Thoughts
Learning how to move cryptocurrency between exchanges expands your financial freedom. With platforms like OKX, you gain access to spot trading, futures, DeFi integrations, and more—all with robust security protocols.
While Japanese exchanges offer convenience and regulatory safety, combining them with global platforms gives you the best of both worlds.
By mastering deposits and withdrawals between GMO Coin and OKX, you’re building essential skills for navigating the evolving crypto landscape—with greater control over your digital wealth.
👉 Take control of your crypto journey today—transfer safely and trade smarter