The Sussex County Citizen Self-Service site will be unavailable during a system upgrade, beginning Friday, April 12, at 3:00 p.m. During this time, the property tax information, building permits, and utility billing website will be unavailable. The outage is estimated to last through Sunday, April 14. Our staff continually works to improve our digital offerings, and we apologize for any inconvenience. We thank you in advance for your patience.