Hi Mr. Bill,
TRIM stands for Truth in Millage.
It is not a tax bill, and it states, "DO NOT PAY - THIS IS NOT A BILL".
The TRIM Notice tells you the taxable value of your property, as determined by your local tax assessor. It also states the local proposed millage rates and the estimated tax to be levied by each taxing authority, such as the county, school board, CDD, etc. In addition, it tells you when and where these authorities will hold public meetings to discuss proposed budgets and set their final millage (tax) rates.
Each county in Florida sends a TRIM notice. We received ours two weeks ago from Marion County.
Hope this helps.