The real estate tax bill is a combined notice of ad valorem and non-ad valorem taxes. The tangible tax bill is exclusively an ad valorem tax. Ad valorem taxes are based on property value. Non-ad valorem taxes are levied on a unit basis, rather than on value.

The Constitution prohibits the state from imposing ad valorem taxes on real and tangible personal property. This gives bodies of government, known as taxing authorities, the exclusive right to levy ad valorem taxes on these types of properties. The non-ad valorem taxes are based on the fee charged by the special assessment which provides the benefit service.

The taxing authorities are responsible for setting the rates. The authorities that determine these rates are governing bodies such as Board of County Commissioners, City Councils, Lee County School Board, Special Taxing Districts (i.e. Fire Districts or Mosquito Control) and Special Assessments (i.e. solid waste, street lighting, sidewalks, or maintenance facilities).

All tax notices will not reflect the same taxing authorities. Individual property taxes are determined by the district or area where the property is located.

The tax periods vary and may not be based on the calendar year. Ad valorem taxes are generally billed in arrears. Non-ad valorem taxes may be billed in advance.