Street Economics

Columbia County, Florida

HJR 1 Homestead-Exemption Tax-Base Exposure

Columbia County . 2025 final assessment roll

Snapshot

The Columbia County read

Columbia County fits the Residential Commuter archetype: residential-dominant like a bedroom community, but with a larger renter or out-of-state share or a lower homestead rate, so somewhat less of the base is owner-occupied primary residence, and still thin on commercial.

At full phase-in in 2028, 36.2% of the county’s non-school taxable base is exposed to the expanded homestead exemption, with 26.1% exposed at the 2027 step. Exposure is high but slightly buffered by the non-homestead residential share — renters and second homes — that continues paying under the amendment. Of 22,804 residential housing units, 66.0% are owner-occupied, 2.8% are owned by out-of-state owners, and 30.8% are non-homestead but Florida-owned. That 30.8% Florida-owned non-homestead share is the structural cushion in this county’s base; it is a local-ownership rental market, not an absentee-ownership story.

Land-use composition

Share of taxable value by category, Columbia County, 2025 roll:

The per-parcel out-of-state ownership data (lu_oos) is not present in the data provided for this record. The composition table below shows share of value only.

What the exposure band means

Band: High exposure. A large share of the base shifts. Diversification is the multi-year strategy; near-term, expect pressure to raise millage to hold services flat.

Looking ahead

Neither of the following changes the exposure figure above; both shape how the county grows its base after the amendment takes effect.

First, beginning January 1, 2027, the annual assessment-increase cap on non-homestead property drops from 10% to 5%, covering commercial, industrial, and small residential rentals of nine units or fewer. Because capped values can rise only 5% per year, the main path to growing taxable value in these categories is transactions: a sale or change of control resets the property to market value, so transaction velocity matters more to non-homestead base growth than it did under the old cap.

Second, new Florida residents who did not maintain a Florida permanent residence as of December 31, 2026 phase into the larger exemption over five years rather than receiving it all at once. This residency ramp cannot be read from the assessment roll, so all exposure figures here assume full application of the exemption. Near-term exposure could run slightly lower than modeled in areas where many recent arrivals are still inside their five-year window.

Where the opportunity is

These recommendations are based solely on the tax roll’s land-use composition. They do not account for whether local land development regulations and zoning permit the uses described, whether there is local obstruction, or the political dynamics that typically decide what actually gets approved. This is a starting point for a conversation, not a development plan.

• First, lean into the renter share. At 30.8% Florida-owned non-homestead units, Columbia County already has a meaningful rental base. Zoning for more multifamily and missing-middle rental housing deepens a category that is taxable in full and already part of this county’s composition. Concentrating that growth along existing corridors or nodes where infrastructure already exists makes the investment more efficient.
• Second, build a commercial and services base. Commercial sits at only 8.2% of just value, making it the single biggest structural lever available. Residents who commute out of the county to work and spend are exporting taxable commercial value; capturing some of that activity locally — through retail, services, and office uses along arterial frontage or in existing commercial nodes — converts bedroom function into daytime economy and taxable commercial value.
• Third, focus commercial and rental investment on one corridor or node rather than scattering it. Concentrating non-homestead investment where demand and infrastructure already exist produces a denser, more resilient taxable base and avoids the cost of extending services to scattered sites.
• Fourth, court employers who want a workforce-adjacent location. Columbia County already houses commuters, which means it has a demonstrated labor pool. Attracting employers — light industrial, distribution, professional services — to locate near that workforce adds non-homestead commercial and industrial base in categories the amendment does not reach.

Watch-out: resist the instinct to chase only owner-occupied move-up housing for its image. It is the most exposed category under HJR 1. Mixed-tenure growth — rental, commercial, and industrial alongside owner-occupied residential — is the more resilient path.

Source and scope

All figures are computed from the Florida Department of Revenue 2025 final assessment roll, the most recent certified roll in the state’s possession. The roll is used as a structural proxy for tax-base composition, not as a dollar forecast for any specific budget year. HJR 1 / CS-HJR 1F is on the November 2026 ballot; the 2026 roll is the assessment roll in place when voters decide. If the amendment passes, the first roll affected is the 2027 roll (the $150,000 step), and the 2028 roll reflects full phase-in at $250,000. Ownership shares are measured on a residential-unit basis. The out-of-state ownership figure is a mailing-address proxy: it undercounts true outside ownership (owners using in-state LLC addresses count as Florida) and does not prove where an owner actually lives or resides. This read is a land-use-composition starting point, not a full fiscal, economic, or legal analysis.

Place: COLUMBIA