How are property taxes calculated on Summerville and in 2026?

Summerville property taxes are calculated by multiplying the assessed value the county sets for a specific home by the millage rate that the county, the town and the school district each set annually, and Summerville is unusual in that it spans three counties. That means two homes both described as being in Summerville can actually be taxed by different counties depending on which side of a boundary line they sit on. Confirming which county issued the assessment notice is the first step to understanding a specific Summerville tax bill. Brian Beatty can help a Summerville buyer identify the correct county for a specific address.