Zürcher Kantonalbank (ZKB) is Switzerland’s largest cantonal bank and the third-largest Swiss bank overall. To log in to ZKB E-Banking, use the official ZKB E-Banking portal and your contract number plus the ZKB Access app on your smartphone for authentication. This guide covers all login methods, known issues from real users, and how to fix common problems.
How to Log In to ZKB E-Banking
E-Banking (Web)
- Go to the official ZKB E-Banking portal
- Enter your contract number
- Open ZKB Access app on your phone
- Scan the mosaic code displayed
- Confirm with biometrics or PIN
ZKB Mobile Banking App
- Download ZKB Mobile Banking from App Store or Google Play
- Open the app and enter your contract number
- Use ZKB Access for initial setup
- Enable Face ID/Touch ID for quick access
- Full banking features available
ZKB Access App (Authentication)
- Install ZKB Access separately
- Required for all E-Banking logins
- Scans mosaic codes for authentication
- Confirms payments and transfers
- Replaces old card reader devices
Known Issues Reported by Customers
Here are issues customers frequently report when trying to access ZKB services:
Accounts Frozen Without Warning
Multiple customers report having accounts frozen without clear notification or explanation. This can lock you out of E-Banking entirely until resolved with customer service.
Customer Service Problems
Customers report long wait times, transfers between departments, and issues that take multiple contacts to resolve.
ZKB Access App Bugs
Users report the ZKB Access app can freeze and sometimes forces manual code entry instead of scanning.
Hidden Transfer Fees
Customers report unclear fee structures and unexpected international transfer fees even when selecting specific SEPA options.
Visa Debit Card Payment Confirmation Bug
Some users report payment confirmations failing in the app. If this happens, update to the latest version and try again.
Troubleshooting & Security Tips
Common Problems & Fixes
ZKB Access app freezing: Force close the app, clear cache, and restart. Update to the latest version available.
Can’t scan mosaic code: Ensure good lighting, hold phone steady, clean camera lens. If it persists, manually enter the code shown on screen.
Forgot contract number: Check your original E-Banking registration documents or call support at 0844 840 140.
Account frozen: Contact customer service immediately. Have your ID ready. This typically requires an in-person branch visit to resolve.
Card blocked: Call 24/7 emergency line: +41 58 958 83 83 for credit cards, 0844 843 823 for debit cards.
Security Tips
- Never share your contract number or ZKB Access PIN
- ZKB will never ask for passwords via email or phone
- Only log in from the official ZKB E-Banking portal (check the URL)
- Enable push notifications for all transactions
- Keep ZKB Access app updated to latest version
- Use biometric authentication when possible
- Report suspicious activity to 0844 840 140 immediately
Contact ZKB Support
E-Banking Support:
Domestic: 0844 840 140
International: +41 44 293 95 95
Hours: Mon–Fri 8:00–22:00, Sat–Sun 9:00–18:00
General Inquiries:
0844 843 823
Hours: Mon–Fri 8:00–18:00
Card Blocking (24/7):
Credit cards: +41 58 958 83 83
Debit cards: +41 44 293 93 93
About Zürcher Kantonalbank
Zürcher Kantonalbank (ZKB) is Switzerland’s largest cantonal bank and third-largest bank overall, serving over 1 million customers in the Zurich region. Founded in 1870, it operates as a public-law institution with a state guarantee from the Canton of Zurich. In January 2024, ZKB removed all account management fees, making basic banking free. The bank also offers cryptocurrency trading since September 2024, though deposits and withdrawals of digital assets are not supported.
Frequently Asked Questions
Last Updated on February 11, 2026
URL: https://log-in.me/zurichcantonalbank-zurich-switzerland/