In Florida, the people have the right to propose amendments to the Florida Constitution through an initiative petition process. Throughout the year, we verify tens of thousands of initiative petitions signed by Hillsborough County voters. Sponsors of these initiatives must secure the required number of valid signatures in order for their initiative to be placed on a General Election ballot. 

Pursuant to Florida Statute 100.371(11)b, Hillsborough County’s actual cost of signature verification of an initiative petition is $0.65. (as of 2/2/24)  

More information on Florida's petition process, including a list of current initiatives, can be found here.

Active Initiative Petition Summary for Hillsborough County

(This document is updated periodically.)

Petitions may also be gathered to propose amendments to the Hillsborough County Charter or the City of Tampa Charter. 


Office Hours: 8 a.m. - 5 p.m. Main Phone: (813) 744-5900 Toll Free: (888) 297-4362 Email:

Fred B. Karl County Center

601 E. Kennedy Blvd., 16th Floor
Tampa, FL 33602
Tel: (813) 272-5850
Fax: (813) 272-7043

Robert L. Gilder Elections Service Center

2514 North Falkenburg Rd.
Tampa, FL 33619
Tel: (813) 744-5900
Fax: (813) 744-5843

Northwest Regional Office

4575 Gunn Hwy.
Tampa, FL 33624

Southeast Regional Office

10020 South U.S. Hwy. 301
Riverview, FL 33578

Please note: Florida has a very broad public records law. Voter registration applications and other written communications to or from the Supervisor of Elections are public records and are available to the public and media upon request unless the information is subject to a specific statutory exemption. Email addresses are also public records. If you do not want your email address released in response to a public records request, please do not email us. Instead, contact us by mail or phone, or visit us in person. To request public records, visit this page.. For questions about public records, email or call (813) 744-5900.