How long do I have to pay my bill? September 24, 2021 21:56 Updated You have 16 days from the date on your bill to pay your bill and be counted on time. Related articles How can I find out my current account balance or see my current bill? Does Energy Texas offer a level or average payment plan (Balanced Billing) to its customers? What is a kilowatt – hour (kWh)? How do I pay my Energy Texas bill? Why was I charged a late fee?