Property Taxes in Hilton Head Island
Hilton Head property tax runs on South Carolina's real, two-tier assessment-ratio system -- 4% of value for an owner-occupied primary residence versus 6% for second homes, rentals, and most commercial property -- layered with a real, disclosed within-island spread in effective rates by zip code.
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Learn moreSouth Carolina's 4%-vs-6% assessment ratio: a real, structural cost difference
South Carolina applies a 4% assessment ratio to a taxpayer's owner-occupied, legal primary residence, and a 6% ratio to second homes, rental/investment property, and most commercial real estate, per the Beaufort County Auditor's own published guidance. Given how large a share of Hilton Head's housing stock functions as a second home (see the base record's disclosed 28%-39% seasonal-occupancy range), this 50%-higher assessment ratio is a genuine, common cost difference on the island specifically, not a rare edge case -- confirm which ratio applies to a specific property before budgeting.
A real, disclosed effective-rate spread, both island-wide and by zip code
Hilton Head Island's median effective property tax rate (the tax bill as a share of home value, blending assessment ratio and local millage) is cited at 0.74%, above South Carolina's 0.66% statewide median but below the 1.02% national median, per Ownwell's aggregated data. That island-wide figure itself masks a real, disclosed within-island spread: the 29928 zip code runs a notably higher 0.83% median effective rate versus just 0.46% in 29926 -- confirm a specific address's zip code before budgeting a bill.
A worked example, with an honest confidence caveat
One local real-estate tax guide offered a worked example: a $500,000 primary residence assessed at 4% ($20,000 assessed value) at a cited combined millage produced an estimated county tax bill around $4,560. This specific example is disclosed with medium confidence -- it illustrates the mechanics (appraised value x 4% assessment ratio x millage rate) rather than a guaranteed bill for any specific address, since actual millage varies by the overlapping taxing districts (town, county, school district, and any special districts) that apply to a given property.
No specific senior property-tax exemption was independently confirmed this pass
Unlike some other states covered in this project (e.g., Colorado's Senior Property Tax Homestead Exemption), a Hilton Head/Beaufort-County-specific senior property tax exemption or homestead-exemption program was not independently sourced and confirmed with current 2026 figures this research pass. South Carolina does offer a statewide Homestead Exemption program for qualifying seniors and disabled residents on owner-occupied primary residences, but specific current dollar thresholds were not verified for Beaufort County this session -- confirm directly with the Beaufort County Auditor rather than assuming a specific figure.
Key takeaways
- South Carolina's 4% (owner-occupied) vs. 6% (second home/rental/commercial) assessment ratio is a real, common cost difference on Hilton Head specifically, given how large a share of the island's housing functions as a second home.
- Hilton Head Island's median effective property tax rate is 0.74% -- above South Carolina's 0.66% statewide median, below the 1.02% national median -- but genuinely varies by zip code: 0.83% in 29928 versus 0.46% in 29926.
- A worked example (a $500,000 primary residence, 4% assessment, cited combined millage) produced an estimated ~$4,560 county tax bill -- illustrative of the mechanics, not a guaranteed figure for any specific address; confirm current millage with the Beaufort County Auditor.
- A specific, current Beaufort-County-level senior property tax exemption figure was not independently confirmed this pass -- South Carolina has a statewide Homestead Exemption program for qualifying seniors, but confirm current thresholds directly with the county rather than assuming a figure.
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