Dear Valued Customers,

In our continuous effort to improve our digital platforms and provide you with smoother and more reliable experience, please be informed that the myTNBiz Portal will undergo a scheduled system upgrade during the following period:

Start: Friday, 17 April 2026, 6:00 PM

End: Saturday, 18 April 2026, 11:59 PM

During the system upgrade period:

• Friday, 17 April 2026, 6:00 PM – Saturday, 18 April 2026, 12:00 AM

myTNBiz Portal service will be temporarily unavailable

• Saturday, 18 April 2026, 12:01 AM - 11:59 PM

myTNBiz Portal will be accessible with limited functionalities:

myTNBiz Portal
• View Bill • View Account Details • View Bill History

You may still make your bill payments conveniently through the alternative channels listed below:

Alternative Payment Channels
• Cheque • EFT (Electronic Fund Transfer)

Important: Payments made between Friday, 17 April 2026, 6:00 PM and Sunday, 19 April 2026, 8:59 AM will be processed and reflected in your account from Sunday, 19 April 2026, 9:00 AM onwards.

To ensure a smoother experience, we encourage you to plan your transactions and activities ahead of time. All services will be available once the system upgrade is completed.

For any assistance, kindly contact TNB CareLine at 1-300-88-5454 or reach us via Facebook TNB CareLine and X @Tenaga_Nasional. We apologise for any inconvenience caused and greatly appreciate your patience as we work to enhance the performance, stability and security of our digital platforms.

Thank you.