Licenses expire on December 31st, and must be renewed by January 31st. The rabies vaccination must be current as of the date of purchase for a one-year license. Multi-year licenses are available based on the remaining term of the dog’s current rabies vaccination. If your pet’s rabies vaccination expires three years from the current year or later, you can purchase a three-year license. If it expires two years from the current year, then a two-year license can be purchased.