Monroe County, FL Local Taxes & Fees: Business Tax Classification (2026)
Key Facts
- Classification basis
- Business size or type
- Tax year
- October 1 to September 30
- Late penalty
- 10% Oct, +5%/month, 25% cap
- Unpaid after 150 days
- Up to $250 civil penalty
- Issuing office
- Monroe County Tax Collector
Summary
Monroe County classifies every business, profession or occupation by size or type and charges a local business tax keyed to that classification, from flat per-occupation fees to employee-count tiers. Monroe County Code § 23-71 defines the classification system and § 23-72 requires payment before anyone may engage in a taxed business in the unincorporated Keys.
Classification means the method by which a business or group of businesses is identified by size or type or both. ... This chapter establishes a business tax for the privilege of engaging in or managing any business, profession or occupation within the county. No person may engage in or manage any business, profession, or occupation within the county subject to business tax under this chapter without first paying that tax to the county tax collector. ... Each person who contracts or subcontracts to construct, alter, repair, dismantle or demolish buildings, roads, bridges, viaducts, sewer, water and gas mains or engages in the business of construction, alteration, repairing, dismantling or demolition of buildings, roads, bridges, viaducts, sewers, water and gas mains must pay a business tax. The tax is determined by the average number of employees during the tax year, and is at the following rates: 1—5 employees $20.00 6—10 employees 25.00 11—15 employees 35.00 16—20 employees 50.00 21—25 employees 65.00 26—50 employees 125.00 51—100 employees 250.00 101 or more employees 500.00
Full Breakdown
Section 23-71 of the Monroe County Code defines classification as the method by which a business or group of businesses is identified by size or type or both, and Article III of chapter 23 then works through dozens of specific classifications, each with its own tax section and rate. Section 23-72 states the underlying rule: the chapter imposes a business tax for the privilege of engaging in or managing any business, profession or occupation in the county, and no person may operate such a business without first paying that tax to the county tax collector.
00 tax on fortunetellers under § 23-94. 00 for 101 or more, with all principals counted as employees. The tax runs on the county's October 1 to September 30 fiscal year under § 23-74, the tax collector issues the Local Business Tax Receipt once paid, and § 23-73 apportions revenue collected from businesses located inside a municipality between that municipality and the county's unincorporated area by population ratio.
Violations & Fines
Operating without first paying the classified tax, or filing a false statement about the classification factor such as seat count or employee count, violates § 23-77 and is a chargeable offense. Late payment triggers escalating penalties under § 23-79: a 10 percent delinquency penalty in October, an added 5 percent for each further month up to a 25 percent cap, a $5.00 cost fee, and, after 150 days unpaid, civil penalties up to $250.00 plus attorney's fees and costs.
Frequently Asked Questions
What does classification mean for the Monroe County business tax?
Do I need a business tax receipt before I can operate?
How is the tax amount determined?
What happens if I pay late?
Sources & Official References
Other rules in Monroe County
Florida rules heatmap·Compare Monroe County to another location·View the Florida local taxes & fees overview
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