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///FLORIDA · COUNTY GUIDE

Property Tax Appeals in Hillsborough County, Florida (2026)

Hillsborough County's 2026 property tax appeal deadline is set by notice, not by a fixed calendar date.

Hillsborough County publishes the rule rather than a 2026 calendar date. Its Value Adjustment Board filing instructions state the deadline is on or before the 25th day following the date the Property Appraiser mails the TRIM notice, and direct owners to the date printed on their own notice. The Property Appraiser confirms 2026 TRIM notices began mailing August 13, 2026.

What starts the clock: TRIM notices began mailing August 13, 2026, per the Hillsborough County Property Appraiser's press release dated August 7, 2026

Hillsborough County appeal, at a glance

Hillsborough County, Florida property tax appeals at a glance
2026 appeal deadlineSet by your assessment notice
File withHillsborough County Value Adjustment Board, c/o Clerk of the Circuit Court & Comptroller, vab@hillsclerk.com, (813) 276-8100
Governing jurisdictionHillsborough County
After a successful appealA reduction applies to that tax year; non-homestead assessments can rise up to 10% a year, so it is worth filing in every year the value is wrong.
Can a board raise the value?Yes — see below (Fla. Admin. Code R. 12D-9.025(6)(c))
Deadline sourceDeadlines, Fees and Instructions for Filing Petitions, Hillsborough County Clerk Value Adjustment Board
Last verifiedAugust 16, 2026

When is the 2026 appeal deadline in Hillsborough County?

There is no fixed calendar date — Hillsborough County publishes the rule rather than a 2026 calendar date. Its Value Adjustment Board filing instructions state the deadline is on or before the 25th day following the date the Property Appraiser mails the TRIM notice, and direct owners to the date printed on their own notice. The Property Appraiser confirms 2026 TRIM notices began mailing August 13, 2026.

This date is our best reading of published county information — confirm with the Hillsborough County Value Adjustment Board, c/o Clerk of the Circuit Court & Comptroller, vab@hillsclerk.com, (813) 276-8100 before relying on it.

Who do I file with?

Appeals are filed with the Hillsborough County Value Adjustment Board, c/o Clerk of the Circuit Court & Comptroller, vab@hillsclerk.com, (813) 276-8100. The governing jurisdiction is the Hillsborough County.

How the appeal process works in Florida

Florida counties mail a TRIM notice (Truth in Millage) in August, and a petition to the county Value Adjustment Board is due 25 days after the notice is mailed. Petitions are typically heard by a special magistrate, and many resolve on the evidence or in an informal conference with the property appraiser first. Non-homestead assessments can rise up to 10% a year, so a value that starts high keeps compounding — a reduction applies to that tax year, which is why it is worth filing in every year the assessment is wrong.

Can an appeal raise my assessment?

It can happen — in Florida the property appraiser may revise a value upward where a factual error in the physical record is discovered during the appeal (Fla. Admin. Code R. 12D-9.025(6)(c)). That's why we check for that exposure before filing: we don't file when we see it, and if it surfaces after filing we withdraw.

FAQ

When is the 2026 property tax appeal deadline in Hillsborough County?
There is no fixed calendar date — Hillsborough County publishes the rule rather than a 2026 calendar date. Its Value Adjustment Board filing instructions state the deadline is on or before the 25th day following the date the Property Appraiser mails the TRIM notice, and direct owners to the date printed on their own notice. The Property Appraiser confirms 2026 TRIM notices began mailing August 13, 2026. This date is our best reading of published county information — confirm with the Hillsborough County Value Adjustment Board, c/o Clerk of the Circuit Court & Comptroller, vab@hillsclerk.com, (813) 276-8100 before relying on it.
Who hears property tax appeals in Hillsborough County?
Appeals are filed with the Hillsborough County Value Adjustment Board, c/o Clerk of the Circuit Court & Comptroller, vab@hillsclerk.com, (813) 276-8100. The governing jurisdiction is the Hillsborough County.
What does it cost to appeal with Castellan?
Nothing up front. $0 upfront. Our fee is 35% of your first-year savings, only if we win. If your properties with Castellan are assessed at more than $5 million combined, your rate is 30% on everything. The same schedule applies in every state we serve, and it is in the agreement in front of you before you sign. If we don't win, you pay nothing.
Can an appeal raise my assessment?
It can happen — in Florida the property appraiser may revise a value upward where a factual error in the physical record is discovered during the appeal (Fla. Admin. Code R. 12D-9.025(6)(c)). That's why we check for that exposure before filing: we don't file when we see it, and if it surfaces after filing we withdraw.
Does Castellan handle appeals in Hillsborough County?
Serving California, Georgia, and Florida. Enter your address and we'll tell you either way — if it's outside what we cover today, you'll hear that plainly.

Sources

Last verified August 16, 2026.

Know where you stand.

Enter your address and we'll check Hillsborough County's own records at no cost. If there's no case, we'll tell you that too.

Serving California, Georgia, and Florida.

Florida property tax appeals. Any estimate is based on county assessment data and public records and is not a guarantee of any outcome. Representation and fee terms are provided in writing before any filing. Deadline information reflects published county materials as of the date shown above — verify with the Hillsborough County Value Adjustment Board, c/o Clerk of the Circuit Court & Comptroller, vab@hillsclerk.com, (813) 276-8100 before relying on it.