Fla. Stat. § 193.063
The property appraiser shall grant an extension for the filing of a tangible personal property tax return for 30 days and may, at her or his discretion, grant an additional extension for the filing of a tangible personal property tax return for up to 15 additional days. A request for extension must be made in time for the property appraiser to consider the request and act on it before the regular due date of the return. However, a property appraiser may not require that a request for extension be made more than 10 days before the due date of the return. A request for extension, at the option of the property appraiser, shall include any or all of the following: the name of the taxable entity, the tax identification number of the taxable entity, and the reason a discretionary extension should be granted.
Fla. Stat. § 193.063