How long do I have to pay my bill? September 27, 2021 15:00 Updated You have 16 days from the date your bill is generated to pay your bill and be counted as on-time. Related articles How do I pay my Energy Texas bill? What methods of payment can I use to pay my Energy Texas bill? Does Energy Texas offer AutoPay? I just paid my bill. When will my power be reconnected? How do I change the card I have on file for AutoPay?