Two counties, one Spring Hill tax return

County

Maury and Williamson counties

Property tax (per $100 assessed, 2025)

Williamson side 1.27 + 0.739 = 2.009 · Maury side 1.91 + 0.739 = 2.649

Sales tax, combined

9.75%

County Trustee

Randy McNeece · Columbia

Assessor of Property

Bobby C. Daniels · Columbia

Population, 2020 → 2024

50,687 → 59,398

State and city business tax

Filed with the TN Department of Revenue

Straight-line distance

12.1 miles from Franklin

Sources: TN Comptroller, TN Department of Revenue, U.S. Census Bureau. Details

Because the city lies in two counties, each with its own rate. Spring Hill levies 0.739 per $100 of assessed value everywhere inside its limits; Williamson County adds 1.27 and Maury County adds 1.91, so the combined tax year 2025 rate is 2.009 on the Williamson side and 2.649 on the Maury side, per the Comptroller’s Tax Aggregate Report.

The gap is 0.64 per $100 assessed, and all of it comes from the county portion. Sales tax doesn’t split that way: both counties charge the full 2.75% local rate, and the Department of Revenue’s rate file has no separate Spring Hill row, so purchases are taxed at 9.75% on both sides. Compare Columbia, Maury’s county seat, and Franklin, Williamson’s. Haven’s personal tax preparation starts from whichever county’s bill the household receives.

That depends on which county the home sits in. On the Williamson side, the bill comes from Trustee Karen L. Paris at 1320 West Main Street, Suite 203, Franklin, and values come from Assessor Brad Coleman in Suite 300 of the same building. On the Maury side, Trustee Randy McNeece collects from 1 Public Square in Columbia, and Assessor of Property Bobby C. Daniels works from 6 Public Square.

Spring Hill grew by 8,711 residents between the April 2020 census base and July 2024, the Census Bureau estimates. A family moving within the city across the county line ends up with a different Trustee, a different assessor and a different combined rate, which is worth knowing before an offer goes in. Haven’s tax planning treats a move like that as a reason to look at the whole year again.

For tax years beginning after December 31, 2025, a business owner with at least $1,000 of active qualified business income gets a Section 199A deduction of no less than $400. The rule comes from IRS Revenue Procedure 2025-32, and it matters most to owners whose deduction, figured the usual way, would come out smaller.

For a Spring Hill owner running a small business in its first years, the 2026 return is the first one the minimum applies to. The deduction is taken on the owner’s individual return, so the business figures and the personal return have to agree. Haven prepares both, and its business tax preparation page explains how the business side is handled.