Notice and timing
How delinquency is handled
Grace period after the due date
Quarterly customers: 30 days after billing date before delinquency. Monthly customers: 15 days after billing date before delinquency; these are the tariff’s delinquency points, not an additional grace period after the printed due date.
Late-fee calculation
A 10 percent late-penalty charge is added once a quarterly or monthly account becomes delinquent. The tariff also allows returned-check and disconnect-related service charges; payment arrangements must be made with Customer Service before the disconnection date.
Disconnection timeline
Quarterly: if unpaid within 45 days after the billing date, NKWD issues a 15-day cut-off notice, creating a stated earliest progression of roughly 60 days after billing. Monthly: if unpaid within 16 days after billing, NKWD issues a 10-day cut-off notice, creating a stated earliest progression of roughly 26 days after billing, subject to the tariff and notice process.