How Can 2026 Newbies Get OKX's Highest Rebate Referral Code [AB6688]? Complete Guide to Mobile & PC Registration with a Permanent 20% Fee Discount

Go to the official OKX website (okx.com) from your phone browser. Scroll to the bottom and tap “Download App.” Do not search for “OKX” in random app stores — impersonator apps exist.

If you’re on Android, download the APK from the official link directly. For iOS, you may need to switch your Apple ID region to a supported country (e.g., Taiwan, Singapore, or the U.S.) if the OKX app is restricted in your local App Store. Once the installation finishes, open the app and tap “Register.”

On the registration screen, choose either email or mobile number. Use a password that you don’t use on any other exchange.

Immediately below the password field you’ll see a small gray box labeled “Referral Code” (also shown as “Invitation Code”). Tap it and type AB6688. Double-check for typos: the code has four digits and two uppercase letters: A-B-6-6-8-8.

When you tap the helper prompt, you’ll see the placeholder Enter Referral Code: Referral Code — just replace the second “Referral Code” with AB6688. Then press “Register.”

Check your email inbox for a 6-digit code. If it doesn’t arrive in 2 minutes, click “Resend.” On your phone, the SMS may come from a foreign number, which is normal.

Enter the 6-digit code in the app. You’ll be prompted to set up a 2FA authenticator (Google Authenticator or Authy) — do it now. This protects your account and is required later when you enable spot trading.

After logging in, tap “Account” → “Verification” → “Personal Verification.” You’ll need a government-issued ID (passport or national ID card) and a face scan.

KYC usually takes 5–10 minutes. Once approved, your referral code stays bound to your account automatically. If you don’t finish KYC, you won’t earn the rebate on trades, because OKX only grants fee discounts to verified users.

Visit https://okx.com/join/AB6688 using your desktop browser. This link already contains the referral code, so the system will pre-fill it. But don’t rely on that — always check.

Click the blue “Register” button at the top right. Choose email or phone number, and set a secure password.

On the registration form, look for “Referral Code” field. If you used the join link above, you should see AB6688 already inserted. If the field is empty, paste AB6688 there manually.

Click “I agree to the Terms and Conditions” and press “Register.” This is the most critical moment — if you skip this field, you void your chance at the permanent 20% discount.

Open the email OKX sends and click the verification button. You’ll be redirected to a success page.

Then set up your anti-phishing phrase (a short code displayed on all official OKX emails so you can spot fakes). This takes 30 seconds and adds real security.

Head to “Account” → “Security” → “Identity Verification.” Upload the front and back of your ID, then take a live photo with your webcam.

While waiting 2–5 minutes for approval, enable Google Authenticator (2FA) and withdraw whitelist. This reduces the risk of account hijacking — a must before depositing any assets.

After KYC, go to your profile → “Fees” → “Spot Trading.” You should see a green badge: “VIP 0 + Referral Discount 20%.” If it says “No discount,” contact live chat support and submit your registered email address — the support team can manually rebind your referral code if you accidentally skipped it during sign-up.

Alice registered on mobile, accidentally typed AB668 (missing one “8”), then completed KYC. Her fee page showed no discount. She reached out to customer support and they corrected it within 4 minutes because the account had never traded yet.

After correction, Alice deposited 1,000 USDT and made a market buy of 0.02 BTC. Her taker fee was 1 USDT (0.1%) instead of 1.25 USDT — a 0.25 USDT saving on that single trade. Across 100 similar trades, she saves 25 USDT. Multiply that by her future trading volume, and the code AB6688 becomes a free money faucet.

1. Trading risk: Cryptocurrency is highly volatile. The 20% fee rebate does not protect you from price swings. Never invest money you cannot afford to lose.

2. Withdrawal and security risk: Always enable 2FA and whitelist your withdrawal addresses. Exchanges get hacked occasionally; cold storage is safer for long-term holdings.

3. Referral code policy risk: OKX may change fee structures or referral conditions in future years. The “permanent” discount is permanent as long as the trading product exists under current policy. Always check the official fee schedule after major updates.

4. Platform risk: Some third-party sites impersonate OKX. Only use the official domain okx.com and the official join link. Double-check the URL before entering any password.