Notice and timing
How delinquency is handled
Grace period after the due date
The bill is due 25 days after the bill date. The City does not publish an additional grace period after the due date; the 10% late charge applies when payment is not received by the due date.
Late-fee calculation
A 10% late charge is applied to unpaid current charges after the due date. A separate $25 cutoff service fee applies to an account with a balance unpaid on cutoff day, and returned payments incur a $30 fee. The current FY2026 schedule and service-fee page should be used for the final account-specific calculation.
Disconnection timeline
Denison’s public service-fee page defines the due date as 25 days after billing and imposes a $25 cutoff fee on cutoff day, but it does not publish a fixed number of days between the due date and field disconnection. The utility service process states that balances and required fees must be paid before service is restored after nonpayment; customers should contact Utilities Customer Service at 903-465-2720 option 1 before cutoff.