For the 2018 tax year, the Grapevine-Colleyville ISD Board of Trustees adopted a Maintenance & Operation tax rate of $1.04 and a Debt Service tax rate of $0.3567 for Debt Service, which is a total tax rate of $1.3967.  The maintenance and operations tax rate remained the same as the 2017 tax year.   If you have any questions about the adopted tax rate, please contact the GCISD Tax Office at 817-251-5632.