Since 1997, communities in Illinois must ask voters through a referendum for permission to impose a transfer tax. Even if a community already has a transfer tax, it still must ask voters for approval to adjust the tax rate.
An important note: Only a Home Rule community can impose a transfer tax. In Illinois, that typically means a municipality has more than 25,000 residents or voters in the community have agreed to yield direct say over tax and fee increases to their elected officials.
More than 70 Illinois communities have transfer taxes of varying amounts
Real Property Alliance has an updated list of communities and the tax rates.