Beginner's Guide: 2026 OKX PC & Mobile Registration Walkthrough – Claim USDT with Official Referral Code (BTC45)

Open your preferred browser (Chrome, Edge, or Firefox recommended) and navigate to the official OKX registration page: https://okx.com/join/BTC45. This direct referral link ensures the code BTC45 is already embedded in your session before you even begin typing. If you're in a region where OKX requires the global site, the link will automatically redirect you. Security tip: verify the domain. Phishing clones like "0kx.com" or "okx-exchange.com" are common traps. The official domain is exactly "okx.com" – nothing more.

On the homepage, look for the "Sign Up" button in the top-right corner. You will have two registration options:

• Email registration: Use any valid email address (Gmail, Outlook, etc.). This is generally recommended because you can always change your linked phone later.
• Phone registration: Use your mobile number with the correct country code. Note that some regions may have SMS delivery delays.

Whichever you choose, make sure it's a mailbox or number you can access long-term – not a temporary one. OKX will send a verification code to complete the signup.

This is the most crucial moment of the entire registration. On the sign-up form, you will see a field labeled "Referral Code" or "Invitation Code". Do not skip it. Paste exactly this code:

Enter Referral Code: BTC45

Here's why this matters: OKX's system locks your referral relationship at the moment of account creation. There is no way to add a referral code after registration. No customer support ticket can retroactively apply it. If you leave the field blank, you permanently forfeit the 20% fee rebate and the new-user USDT bonus. The code BTC45 is the verified official code tied to the official OKX join link, giving you lifetime 20% spot and futures fee rebates.

After clicking the registration button, a six-digit verification code will be sent to your email or phone. Enter it in the prompt window. If you don't see it within 60 seconds:

• Check your spam/junk folder – verification emails sometimes land there.
• Confirm your email address was typed correctly with no trailing spaces.
• Use the "Resend" button after the cooldown period (usually 30 seconds).
• Never share this code with anyone. OKX will never call you asking for it.

Set a password that meets OKX's strength requirements: at least 8 characters, including uppercase and lowercase letters, at least one number, and one special symbol. Avoid reusing passwords from other websites – credential stuffing attacks are a real threat in crypto. After confirming your password, agree to the Terms of Service, then click "Register". Your OKX account is now live. But the process isn't over – proceed to Part 3 for KYC verification and bonus claiming.

iOS users: Open the App Store, search "OKX", and look for the app published by the official developer account with millions of downloads and high ratings. The app icon displays the OKX logo with a clean blue-and-white color scheme.

Android users: Go to the official OKX website and download the APK from the homepage, or find it on the Google Play Store. Warning: Never download any APK from Telegram groups or third-party app stores. Malicious modified APKs are one of the most common ways attackers steal crypto funds.

Launch the app and tap the big "Register" button on the welcome screen. You'll be presented with the same two options as on PC: email or phone. Choose your preferred method and input the details. Then move to the referral code field – it may appear as "Invitation Code" depending on your app version. Enter Enter Referral Code: BTC45 exactly as written, with no spaces.

OKX uses an anti-bot slider puzzle during mobile registration. Drag the puzzle piece to the correct position as shown on screen. Then, enter the six-digit verification code from your email or SMS. On certain devices, you may also be asked to complete a Google reCAPTCHA. Just follow the prompts – this usually takes under two minutes.

Once your account is created, the app will ask if you want to enable Face ID or fingerprint login. This is highly recommended – biometric authentication prevents someone from accessing your account even if they steal your password. Right after that, dive into Security Settings and enable Google Authenticator (2FA). This is the single most effective way to protect your assets. Also consider setting up the anti-phishing code, which personalizes every email OKX sends you so you can instantly spot fake messages.

After logging into your account, click your avatar in the top-right corner and select "Identity Verification" (or go to the "Profile" tab on mobile). You'll see different verification levels. For most users, completing Level 1 is mandatory for withdrawing crypto, making fiat deposits, and claiming the USDT new-user rewards. Level 2 (advanced verification) may be required for higher withdrawal limits – you can upgrade later.

You'll need a valid passport, national ID card, or driver's license. Position the document in a well-lit area and keep it flat – avoid reflections and shadows. The verification system uses AI to compare your face with the photo on the ID. During the liveness check, follow the on-screen instructions (blinking, tilting your head, smiling). Make sure your face is fully within the frame and not obscured by a mask or sunglasses.

KYC approval typically takes anywhere from 5 minutes to a few hours, depending on current demand. You'll be notified via app push notification or email once approved. Then, navigate to the "Rewards Hub" or "Bonus Center" to view your new-user USDT package. Some rewards are distributed as task-based bonuses, meaning you need to complete a minimum first deposit or first trade to unlock them. Read the terms carefully – and remember that the 20% fee rebate from BTC45 applies to every trade you make, regardless of the bonus.