January 1
This is the date mandated for property assessment each year. Properties within the County are valued by the Property Appraiser’s office as of this date each year. Residency and ownership must be established as of January 1 to qualify for Homestead and other Exemptions and Classifications. 

January 2
Courtesy Tangible Personal Property tax returns are mailed. 

March 1
Filing deadline for all Real Estate exemptions and agricultural classification.  

April 1
Deadline for filing tangible personal property return without penalty. 

The  sale file is sent to DOR for annual review.

July 1
The Property Appraiser’s office submits the preliminary  assessment rolls to the Florida Department of Revenue for review and approval. 

 You have 30 days from the date of mailing of the Exemption or Agricultural Classification denial notice to file a petition with the Value Adjustment Board (VAB).

August
TRIM (Truth in Millage) Notices are mailed to all property owners. The Property Appraiser's office conducts a "Review Period" when additional resources are dedicated to providing taxpayers with an explanation and review of their assessment. Differences of opinion on value and any discrepancies should be discussed at this time. 

Owners have 25 days from the mailing of the TRIM notice to file a petition with the Value Adjustment Board. 

October
Assessment rolls are certified for collection. 

November
Tax bills are mailed by the Hillsborough County Tax Collector.