Property Taxes: Sebastian vs. Unincorporated County — Sebastian, Florida

For tax year 2025 a parcel inside the City of Sebastian carried 16.4994 mills against 14.2045 in the unincorporated tax areas that share the Sebastian Inlet levy, a gap of 2.2949 mills.

The Florida Department of Revenue codes every combination of levies in Indian River County as a numbered tax area. Tax area 2, which carries the 3.4455-mill Sebastian municipal levy, adds up to 16.4994 mills (FDOR 2025 Indian River TACD, page 2). Tax areas 1 and 1D, which carry the county Municipal Services MSTU and the Sebastian Inlet District levy but no city levy, each add up to 14.2045 mills (FDOR TACD, page 1), and tax area 1E, whose list runs onto the next sheet, totals the same 14.2045 (FDOR TACD, page 2). Unincorporated tax area 7, which has no Sebastian Inlet line, totals 14.0490 (FDOR TACD, page 5). The state table identifies areas by code rather than by place name, so the table does not itself say which code covers Roseland, Wabasso or Vero Lake Estates.

The two Sebastian area totals differ by one swap. The city parcel pays the City of Sebastian levy of 3.4455 mills and no county Municipal Services levy; the unincorporated parcel pays the Municipal Services MSTU levy of 1.1506 mills and no city levy. Subtracting gives 3.4455 minus 1.1506, or 2.2949 mills, and the same figure falls out of 16.4994 minus 14.2045. Every other line is identical on both sides of the city limit.

At tax year 2025 rates the City of Sebastian side of the line costs $229.49 more for every $100,000 of taxable value, so a parcel taxed on $300,000 pays $688.47 more than the same value in unincorporated tax area 1.

The Indian River County Tax Collector computes ad valorem tax by multiplying taxable value by the millage rate, where a mill is a tax per thousand dollars of value (Indian River County Tax Collector). The table divides each sample value by 1,000 and multiplies by the 2025 Sebastian and unincorporated totals. The values are illustrations, not a typical Sebastian assessment, and the table applies one taxable value to every levy on the bill.

The difference column can be checked from the two levies that change. On $300,000 of taxable value the Sebastian city levy is 300 times 3.4455, or $1,033.65, and the county Municipal Services levy that an unincorporated tax area 1 owner would pay instead is 300 times 1.1506, or $345.18. The gap, $688.47, matches the total row.

Ad valorem tax is only part of the Indian River County bill. Sebastian and the unincorporated county attach different non-ad valorem assessments, covered further down this page, and those are not based on assessed value, so a full side-by-side for one Sebastian parcel needs both halves.

The county Municipal Services levy is a municipal service taxing unit, a tool Florida law gives counties for unincorporated land, while parcels inside Sebastian pay a City of Sebastian levy and no Municipal Services levy.

Florida Statutes 125.01 lets a county set up municipal service taxing or benefit units for any part or all of the unincorporated area, within which it may provide services such as fire protection, law enforcement, recreation and streets (Florida Statutes 125.01). The Indian River County Tax Collector lists the Board of County Commissioners Municipal Service line and the City of Sebastian as separate taxing authorities, with separate phone numbers: (772) 226-1214 for the county and (772) 388-8205 for the city (Indian River County Tax Collector). In the 2025 TACD the Municipal Services line appears on tax areas 1, 1D and 1E and not on Sebastian tax area 2.

The city levy is a large share of the City of Sebastian General Fund. Ad valorem taxes provide approximately 39.1 percent of the City of Sebastian General Fund revenues in fiscal 2025-26 (City of Sebastian FY 2025-26 budget book, page 28). The General Fund pays for departments that include the Sebastian Police Department, Code Enforcement, Roads and Maintenance, Parks and Recreation, the cemetery and Community Development (City of Sebastian budget book, page 5).

Which side costs less overall is not settled by millage alone. A Sebastian parcel and an unincorporated county parcel buy different service packages from different governments, and the non-ad valorem charges on each bill differ, so this page compares the tax lines the state publishes rather than declaring a cheaper side.

The gap held at 2.0449 mills in fiscal 2023-24 and 2024-25, when the City of Sebastian rate was 3.1955, and widened to 2.2949 mills in 2025-26, when the city rose to 3.4455 while the county MSTU stayed at 1.1506.

The 2023-24 and 2024-25 rates come from the Department of Revenue comparison for those two years (FDOR Table 1, 2023-24 and 2024-25). For 2025-26 the same state series shows the City of Sebastian adopting 3.4455 mills against a rolled-back rate of 3.0149, with taxes levied up 16.8 percent to $8,580,083 (FDOR Table 1, 2024-25 and 2025-26). The County MSTU kept 1.1506 mills against a rolled-back rate of 1.0846, and its levy rose 8.5 percent to $20,387,318.

The Sebastian figure was cut by 0.1 mill at the final hearing. The City Council advertised a proposed 3.5455 mills, then adopted the final 3.4455 at a public hearing on September 24, 2025, by a unanimous vote, according to the city budget book (City of Sebastian budget book, page 8).

Rates for fiscal 2026-27 go through the same September hearing cycle, but the Department of Revenue had not posted its 2026 Indian River tables when this page was checked, so the 2025 tax year is the latest vintage shown for Sebastian and the county.

Beyond millage, the Indian River County Tax Collector lists a Sebastian Waste Collection assessment for City of Sebastian parcels and a Universal Waste Collection assessment for unincorporated Indian River County, plus smaller district charges.

The Tax Collector's list of levying authorities includes the Sebastian Stormwater Services Assessment and the Sebastian Waste Collection Assessment, and its waste collection answer dates the City of Sebastian assessment to tax year 2024 and the unincorporated county Universal Waste Collection assessment to tax year 2025 (Indian River County Tax Collector, non-ad valorem). The same list names smaller districts, including the Roseland Road Street Light District, the Vero Lake Estates MSBU and the Vero Lakes Water Control District. Exemptions do not lower any of these, because they are not based on assessed value.

The county rate is published. The Indian River County financial report shows the Universal Collection Assessment Rate per Household at $181.70 for fiscal 2025/26, up from $0.00 in 2024/25, tied to Universal Garbage Collection for unincorporated residents (Indian River County ACFR FY2025, page 37). The Digital Towns pages on the Sebastian stormwater utility fee and on garbage and recycling cover the city side of these charges.

One levy is the same on both sides. The Sebastian Inlet District adopted 0.1555 mills for fiscal 2025/26, its rolled-back rate, expecting $1,342,518 from Indian River County and $6,222,068 from Brevard County (Sebastian Inlet District hearing package, page 2). The district collects from owners within defined boundaries in both counties (Sebastian Inlet District FAQ) and lists a Sebastian Inlet District Boundary Map among the important documents on its about page (Sebastian Inlet District, about).

The Digital Towns guide to Sebastian property taxes explains the bill calendar and the TRIM notice, and the guide to permits outside city limits shows how the same city line splits building permits between the city and the county. Last verified: October 11, 2026, on the Florida Department of Revenue 2025 Indian River TACD and Table 1 pages and the Indian River County Tax Collector ad valorem and non-ad valorem pages.