Jacksonville is Florida's largest city by population and land area, and like every Florida city, it charges no state or local income tax β Article VII of the Florida Constitution bars both the state and any local government operating under its authority from taxing personal income. That single fact makes Jacksonville, along with the rest of Florida, one of the most tax-advantaged places in the country for W-2 employees, retirees drawing pension and investment income, and remote workers relocating from high-tax states.
What makes Jacksonville structurally distinctive is its consolidated city-county government. In 1968, the City of Jacksonville merged with Duval County to form a single unified government β one of only a handful of major US cities to do this. Most city services, and the bulk of the property tax millage, are set through this consolidated structure rather than split between separate, sometimes-competing city and county governments. Combined with a 7.5% sales tax and property taxes that run higher for new buyers than Florida's 0.78% statewide average, Jacksonville's tax profile is defined mainly by the absence of any income tax.
Florida is one of nine US states with no state income tax, and the prohibition is constitutional rather than merely statutory: Article VII, Section 5 of the Florida Constitution bars any tax on the income of natural persons "by the state, or under its authority" β language that extends the prohibition to cities and counties as well, including Jacksonville's consolidated government. Changing this would require a constitutional amendment approved by a 60% supermajority of Florida voters, a high bar that has kept the prohibition firmly in place for decades.
For a single filer earning $75,000, this means Jacksonville residents pay $0 in state and city income tax, versus roughly $2,940 in Milwaukee (Wisconsin state income tax only; Milwaukee has no city income tax) to about $4,720 in Detroit (Michigan state tax plus the 2.4% city income tax) for a single filer at the same income. Over a career, this advantage compounds meaningfully, particularly for higher earners and retirees drawing pension, 401(k), or investment income β none of which is subject to Florida income tax.
Jacksonville is structurally unusual among major US cities. In 1968, voters approved consolidation of the City of Jacksonville with Duval County, merging most city and county functions β police, fire, public works, and much of the tax base β into a single government (a handful of smaller municipalities within Duval County, like Atlantic Beach, Neptune Beach, Jacksonville Beach, and the Town of Baldwin, remained independent and levy their own separate municipal millage rates).
Because of this structure, most Jacksonville property owners pay one consolidated set of city-county millage rather than separately stacked city and county levies. For fiscal year 2026-27, the Jacksonville City Council held its maximum millage rate flat at 11.1919 mills β this is the city-county general government portion. Layering on the Duval County Public Schools millage (roughly 6.3 mills) and smaller special-district levies brings the total combined millage to 17.74 mills in the former City of Jacksonville area (2025 final), and roughly 17.2 to 19.0 mills across Duval County taxing districts.
Jacksonville's combined sales tax rate is 7.5%, assembled from two layers:
| Taxing Authority | Rate |
|---|---|
| Florida state | 6.0% |
| Duval County discretionary surtax | 1.5% |
| Total | 7.5% |
Florida's discretionary sales surtax is set at the county level and varies statewide from none to 2% (some counties impose none at all); Duval County's 1.5% is above Miami-Dade County's 1%. On $30,000 of annual taxable spending, the 7.5% rate generates $2,250 in sales tax β lower than Sacramento (8.75%), but higher than Miami-Dade County (7%). Florida exempts groceries, prescription drugs, and most medical items from sales tax; the discretionary surtax portion also caps out after the first $5,000 of a single large item purchase (e.g., a vehicle), a Florida-specific nuance that limits the surtax's impact on big-ticket purchases.
Jacksonville/Duval County's total millage of roughly 17.2 to 19.0 mills (17.74 in the former City of Jacksonville area for 2025) translates to an effective property tax rate of roughly 1.5% to 1.6% of market value for a newly purchased homestead valued at $300,000β$500,000 (our arithmetic), after Florida's Homestead Exemption (about $50,000 off assessed value for primary residences; the second $25,000 does not apply to school taxes). The Save Our Homes cap, which limits annual assessment increases for homesteaded properties to 3% or the CPI, whichever is lower, then reduces bills over time.
On a $400,000 home assessed at market value, with the homestead exemption applied and 2025 millage of 17.74 mills, annual property tax is approximately $6,350 (about 1.6% of value); long-time owners with a Save Our Homes cap pay less. Non-homesteaded properties (investment property, vacation homes) do not benefit from the exemption or the Save Our Homes cap and are assessed closer to full market value, with only a 10% annual assessment increase cap.
For a single professional earning $75,000 and renting (no direct property tax exposure):
| Tax Type | Jacksonville | Detroit | Sacramento |
|---|---|---|---|
| Federal income tax | ~$7,670 | ~$7,670 | ~$7,670 |
| State income tax | $0 | ~$2,940 | ~$2,665 |
| City income tax | $0 | ~$1,790 | $0 |
| Sales tax (on $30K taxable spend) | ~$2,250 (7.5%) | ~$1,800 (6%) | ~$2,625 (8.75%) |
| Total (approx) | ~$9,920 | ~$14,200 | ~$12,960 |
Jacksonville's total burden at this income level is meaningfully lower than both Detroit and Sacramento, driven almost entirely by the absence of any income tax. The gap widens substantially at higher incomes, where California's progressive rates in particular become a much larger factor. For homeowners, property tax (about 1.5%β1.6% of value for a new homestead buyer in Jacksonville) should be added to this comparison.
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