Taxes & Insurance in Gallatin
Gallatin sits within Tennessee's no-income-tax, high-sales-tax structure, with a Sumner County property tax picture that carries a genuinely large, unreconciled disagreement between sources -- disclosed here rather than resolved to one falsely precise number.
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Learn moreNo state income tax, but a high combined sales tax
Tennessee levies no state income tax. The tradeoff is sales tax: Tennessee's average combined state-and-local rate is 9.61%, the second-highest in the nation behind Louisiana (Tax Foundation 2026 State Tax Competitiveness Index, retrieved 2026-08-22). Sumner County's combined rate runs 9.25%-9.75% depending on the specific jurisdiction within the county (the state's 7% plus a 2.25% county rate as a baseline, with some areas layering on more) (Avalara, retrieved 2026-08-22).
Sumner County property tax: a genuine, unreconciled near-2x disagreement
One aggregator cites Sumner County collecting, on average, 0.69% of a property's assessed fair market value as property tax; a second, separately-sourced figure cites a 0.36% effective rate, described as well below the ~1.02% national median (both retrieved 2026-08-22). This is a real, substantial disagreement -- nearly double -- that this session could not resolve to one number, and it is disclosed here explicitly rather than averaged or silently resolved in either direction.
The City of Gallatin's own confirmed rate, with a 2026 gap disclosed
The City of Gallatin's official property tax page confirms a rate of $0.5295 per $100 of assessed value for 2025. A current 2026 city rate was not confirmed this session -- disclosed as a gap rather than assumed unchanged; contact the City of Gallatin or Sumner County Trustee directly for a current, parcel-specific estimate. This is the city layer only, on top of the disputed county rate above; Tennessee assesses residential property at 25% of appraised value before either rate applies.
Homeowners insurance: a wide statewide range, not a Gallatin-specific figure
No Gallatin-specific homeowners insurance figure was found this session. Statewide Tennessee estimates for 2026 varied by source: $2,706/year (U.S. News), $2,958/year (Insurance.com), and $3,408-$3,757/year (LendingTree, which separately cited Tennessee as having the 7th-highest average homeowners insurance cost in the country) (all retrieved 2026-08-22) -- a genuine, disclosed spread of over $1,000/year. Waterfront properties near Old Hickory Lake specifically may carry additional flood-zone considerations not independently verified this session -- get a specific quote for any Gallatin address, particularly a lakefront one.
Key takeaways
- Tennessee has no state income tax, but its 9.61% average combined sales tax is the second-highest in the nation; Sumner County's combined rate runs 9.25%-9.75% depending on jurisdiction.
- Sumner County's effective property tax rate carries a genuine, unreconciled near-2x disagreement between sources (0.36% vs. 0.69%) -- disclosed rather than resolved; budget conservatively.
- The City of Gallatin's own confirmed property tax rate is $0.5295 per $100 of assessed value for 2025; a current 2026 rate was not confirmed this session.
- Statewide Tennessee homeowners insurance estimates ranged from $2,706 to $3,757/year -- no Gallatin-specific figure was found; lakefront properties may carry additional flood-zone considerations not verified this session.
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