Denton County, TX — Property Tax Underwriting Guide
Texas · Annual market review
What this means for multifamily underwriting
Denton County is a high-growth suburban market north of Dallas-Fort Worth. MUD districts are common in newer developments and can add significantly to the combined rate.
Transaction type breakdown
Texas appraisal districts appraise property annually as of January 1 using mass-appraisal methods. A transaction may provide relevant market evidence, but ownership transfer does not mechanically reset the assessment to, or toward, purchase price.
Refinance does not change appraised value.
Ownership transfer does not mechanically reset the assessment to, or toward, purchase price; annual January 1 appraisal continues under the district's mass-appraisal process.
Tax appeal information
21.0 mill (2.1% effective) is a mid-county estimate; MUD district overlays in new suburban developments can push effective rates higher.
Guide review
County guidance last reviewed: June 15, 2026
Tax-rate scope: County-level underwriting placeholder; not a parcel-specific tax rate.
Official sources: Denton CAD
Annual-market model is well established; aggregate millage is a placeholder.
Parclio estimates are underwriting guidance, not legal or tax advice. Always verify millage rates, the seller's assessed value, and appeal deadlines with the county assessor or local counsel before relying on these numbers for a credit decision.
Run a tax reset estimate for Denton County
Use Parclio's estimator to model the post-closing tax bill, NOI impact, DSCR change, and underwriting memo language for your next Denton County deal.