Managing your Costco Anywhere Visa® Card by Citi online makes it easy to check balances, track cashback rewards, pay bills, and monitor your transactions. If you’re not sure how to log in or you’re a new user, this simple step-by-step guide will walk you through everything you need.

🔹 Official Login Link for Costco Credit Card

Before anything else, always use the correct login page.
Costco credit cards are issued by Citibank, so the real login URL is:

👉 https://online.citi.com/

⚠️ Avoid look-alike sites — only Citi hosts the official login.

⭐ How to Log In to Your Costco Credit Card (Step-by-Step)

✅ Step 1: Visit the Citi Login Page

Open your browser and type:
👉 online.citi.com

You’ll land on Citi’s secure sign-in portal.

✅ Step 2: Enter Your User ID & Password

On the login form:

• Enter your User ID

• Type your Password

Then click Sign On.

Make sure:

• Caps Lock is OFF

• There are no extra spaces in your credentials

🔐 Step 3: Complete Verification (If Required)

Citi may send a:

• Verification code (OTP) to your phone/email

• Or ask a security question

Enter the correct verification to proceed.

⭐ You’re In – What You Can Do Inside Your Costco Visa Dashboard

After signing in, you can:

• 📊 View recent transactions

• 💳 Check balance & available credit

• 💰 Track your Costco cashback rewards

• 📅 Make one-time or scheduled payments

• 🔁 Set up Autopay

• 🧾 Download monthly statements

• 🔔 Enable alerts (payment due, transactions, etc.)

• 🛡 Lock/unlock your card

• ✏ Update personal information

Everything is available 24/7 online or in the mobile app.

🔹 How to Log In Using the Citi Mobile® App

If you prefer your phone:

1. Install Citi Mobile® App (Android/iOS)

2. Tap Sign On

3. Enter User ID & Password

4. Complete verification if asked

5. Access your Costco Visa account instantly

The app also supports Face ID or Fingerprint Login.

⭐ New User? How to Create Your Online Costco Citi Account

If you haven’t registered online yet:

1. Go to online.citi.com

2. Click Register for Online Access

3. Enter:

   • Card number

   • Name on card

   • ZIP code

   • Date of birth

4. Create your User ID & Password

5. Verify your identity

6. Return to the login page and Sign On

Registration takes less than 3 minutes.

🔧 Troubleshooting: Costco Citi Login Not Working?

If login fails, try these quick fixes:

✔ 1. Reset your User ID or Password

Use Forgot User ID / Forgot Password.

✔ 2. Clear your browser’s cache & cookies

Fixes loading and security errors.

✔ 3. Disable VPN or Proxy

Citi blocks suspicious IP addresses.

✔ 4. Switch browsers

Chrome → Safari → Edge → Firefox.

✔ 5. Try another device

Phone → Laptop or vice versa.

✔ 6. Switch your network

Try mobile data instead of Wi-Fi.

✔ 7. Check Citi system status

Occasionally, the site is under maintenance.

✔ 8. Contact Citi Support

If your account is locked or verification fails.

Use the number on the back of your Costco credit card.