Notice and timing
How delinquency is handled
Grace period after the due date
GRU's normal automatic-extension program provides seven days beyond the due date, and a further seven-day extension is available for eligible residential customers, making 14 days after the original due date the service-interruption threshold. The bill is still late after the due date and standard late fees apply.
Late-fee calculation
A late fee of $1 or 1.5% of the past-due balance, whichever is greater, is charged on an unpaid balance at the close of business on the due date. Returned payments are charged $25 for amounts up to $50, $30 for $50.01–$300, $40 for $300.01–$800, and 5% for amounts above $800. GRU may place accounts on cash-only payment after two or more returned checks within 12 months.
Disconnection timeline
The bill is due on the date printed. GRU mails a courtesy late-fee notice and service-disconnection warning if payment is not received. Any bill not paid in full by the 14th day after the due date is eligible for service disconnection; if an account remains unpaid for seven days after the disconnection, GRU may close the account and disconnect remaining services. The system's automatic-extension page describes seven additional grace days beyond the normal seven-day extension for eligible residential customers.