You can do a number of payments online on the Kildare County Council website, click on the following links if you wish to avail of this service

Purchase your Water Butt
Buy your Dog Licence
NPPR (Non-Principle Private Residence) Charge
Refuse
Buy Refuse Tags
Buy Development Plans
Buy Reusing Farm Buildings- a Kildare Perspective 
Traffic Fines for Celbridge, Leixlip, Kildare Town and Newbridge
Purchase C1 forms for the Transportation of Hazardous Waste 
Motor Tax