Gwinnett County's Board of Commissioners is expected to vote Tuesday to adopt a rollback millage rate — meaning that, generally speaking, local home and business owners may pay lower property taxes this year.

A millage rate is used to calculate such taxes. One mill equals $1 in property taxes for every $1,000 of assessed value.

Officials said last month that the county's projected 2018 tax digest had jumped to around $30.8 billion in 2018, an increase of approximately $1.6 billion over 2017. The Board of Commissioners later announced their intention to adopt a rollback millage rate, which involves lowering the rate to a level where the same amount of tax revenue is collected despite the increased digest.

The advertised rollback general fund millage rate of 7.209 mills — which could, generally speaking, save the owner of a home assessed at $200,000 about $40 on property taxes compared to 2017 — is expected to be voted on during the commission’s meeting at 2 p.m. Tuesday.

A number of individual rates like those for police and law enforcement are also combined to the general fund millage rate to get the overall millage rate. Gwinnett’s overall 2017 millage rate was 13.51.

The county school system also has a separate millage rate. The schools have proposed a millage rate of 21.75 mills, a slight decrease from last year's 21.85.

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