Choosing an Accountant for Your Miami Startup: Florida Tax Advantages and Pitfalls

Florida has no personal income tax under Article VII, Section 5 of the Florida Constitution, which is attractive for founders holding equity. Florida does tax corporations: the corporate income tax is 5.5% of net income apportioned to Florida, after a $50,000 exemption. C corporations doing business in Florida file Form F-1120 every year, even when no tax is due, by the first day of the fifth month after year-end (May 1 for calendar-year filers) or 15 days after the federal due date, whichever is later.

S corporations, partnerships and single-member LLCs disregarded for tax are generally outside the corporate income tax, because their income passes through to owners and Florida does not tax individuals. That is a real difference from California, where pass-through income is taxed at up to 13.3%.

For a VC-backed Delaware C corporation registered in Florida, the 5.5% tax applies only to Florida-apportioned income above the exemption, which most early-stage companies do not have. Salaries, dividends and capital gains carry no Florida personal income tax. Every Florida-registered corporation also files an annual report with the Division of Corporations: $150 for a profit corporation, due by May 1, with a $400 late fee after that date.

Florida apportions corporate income with a three-factor formula that weights property 25%, payroll 25% and sales 50%, not the single sales factor most large states now use. That matters for Miami startups, because a company whose team and office are in Miami but whose customers are national can still apportion a large share of its income to Florida.

Here is a hypothetical example. A Miami-based Delaware C corporation has $1,000,000 of adjusted federal income. Sixty percent of its property and 70% of its payroll are in Florida, but only 10% of its sales are to Florida customers.

The Florida apportionment factor is 37.5%, so $375,000 is Florida income. Subtract the $50,000 exemption to get $325,000 of Florida net income, and the tax at 5.5% is $17,875. Under a single sales factor the same company would apportion only 10% ($100,000), and after the exemption it would owe $2,750.

Because the expected tax is above $2,500, this company must also make estimated payments on Form F-1120ES. If it needs more time to file, Form F-7004 with a tentative tax payment by the original due date gives a six-month extension (seven months for June 30 year-ends). The extension never extends the time to pay.

Florida imposes a 6% state sales tax on tangible personal property and certain services, plus county discretionary surtaxes (Miami-Dade adds 1%). Florida generally does not tax SaaS or software delivered electronically with no tangible medium, but software sold on physical media is taxable, and information services and some data products have their own rules. This is fact-specific, and the Department of Revenue's Technical Assistance Advisements (TAAs) are the best guide for products near the line.

For e-commerce startups, physical products shipped to Florida customers are taxable, and remote sellers must register once their taxable sales into Florida exceed $100,000 in the prior calendar year. Communications services (VoIP, streaming video and similar) fall under the separate Florida Communications Services Tax, which has its own state and local rates and returns. If your product includes communications features, have your accountant confirm whether CST applies before you launch billing.

A Miami startup with employees registers for Florida reemployment tax and gets local business tax receipts from both Miami-Dade County and, if it is inside city limits, the City of Miami. Florida has no state income tax withholding, but these registrations still apply.

• Reemployment tax: New employers pay 2.7% on the first $7,000 of each employee's wages per calendar year, so at most $189 per employee in the first year. Rates adjust after a qualifying period based on your claims history. Report initial employment in the month after the calendar quarter in which you first hire.
• Local business tax receipts: Miami-Dade County requires a receipt for each place of business and each business classification, and a business inside a municipality needs both the city and the county receipt. County receipts run October 1 to September 30 and become delinquent if not renewed by September 30.
• Commercial rent: Florida repealed its sales tax on commercial rent for rental periods beginning on or after October 1, 2025. Office leases signed now carry no state sales tax or surtax on rent, though rent for earlier periods paid late is still taxable.
• Annual report: File with the Division of Corporations between January 1 and May 1 to avoid the $400 late fee.

None of these are large dollar amounts. They are, however, the filings a generalist bookkeeper most often misses when a founder relocates a Delaware C corporation to Miami.

Many Miami startups hire remote employees or contractors in other states, which creates payroll tax withholding obligations and potentially corporate income tax nexus in those states. If your Miami-based SaaS company has three engineers in New York, you must withhold New York state and city income taxes from their wages and may owe New York corporate franchise tax under the economic nexus provisions of the New York Tax Law. Florida does not have a reciprocal tax agreement with any state, so employees living in other states are subject to their home state income tax on wages. Your accountant must track employee locations, ensure proper withholding in each state, and file employer registrations where required. For startups with employees in five or more states, we recommend using a payroll provider that handles multi-state compliance automatically, such as Gusto, Rippling, or ADP.

The Miami market has attracted many new accounting firms and bookkeeping services targeting startups, but quality varies significantly. A qualified startup accountant should be able to handle Delaware C-Corp annual compliance (franchise tax, annual reports), Florida Form F-1120 corporate tax filing, multi-state payroll tax withholding and nexus analysis, R&D credit studies for software companies, 409A valuation coordination, and investor-ready financial statements prepared on an accrual basis. Ask potential accountants about their experience with venture-backed companies and how many startup clients they serve. Request sample deliverables such as monthly financial packages and board-ready reports. A generalist who primarily serves local restaurants and real estate investors is not the right fit for a funded startup, regardless of how competent they are in their niche.

SpryTax serves Miami-based startups across fintech, e-commerce, SaaS, and climate tech. We handle the full tax and accounting stack: monthly bookkeeping, quarterly payroll tax filings, annual federal and Florida state returns, Delaware franchise tax, and R&D credit studies. Our team understands the specific advantages and nuances of the Florida tax environment and can structure your operations so you pay what you owe in each state and no more. We also support founders with personal tax planning around equity compensation, QSBS eligibility, and multi-state filing obligations. This guide is general information checked in October 2026, not tax advice for your specific facts.