Notice and timing
How delinquency is handled
Grace period after the due date
NBU's public policy does not state a universal grace-day count. The bill shows the due date and last payment date; payment not received by the last date shown subjects the account to late charges and, if still unpaid, disconnection. AutoDraft on the actual due date is marketed as a way to avoid late fees. Customers should treat the printed date and NBU's policy as controlling.
Late-fee calculation
NBU's Service Conditions Policy states that a late charge is assessed when the amount due is not received by a Customer Service Representative by the due date, and late charges can apply to utility service fees and other billed charges. The public 2026 payment pages do not state the percentage or fixed amount of the late charge. Budget Billing with AutoDraft avoids late fees when paid on the due date; two insufficient-funds notices can remove a customer from Budget Billing for one year.
Disconnection timeline
NBU ordinance language states that if the full amount due is not paid by the last payment date on the billing statement, the customer is subject to disconnection; reconnection or processing fees then apply under NBU policy. The public customer pages do not publish a fixed number of days after the due date, crew cutoff time, or exact physical-lock sequence. Customers should contact NBU at (830) 629-8400 before the last date shown on the bill and request a payment arrangement if eligible.