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Open Tax Estimator →Understanding Effective Property Tax Rates
Property taxes represent one of the largest ongoing expenses of residential real estate ownership. While mortgage interest rates are set at the national capital market level, property taxes are governed entirely by local county tax assessors, school districts, and municipal authorities.
Annual Tax Due = Assessed Property Value × (Total Millage Rate / 1,000)
Key terms in property tax assessment include:
- Assessed Value vs. Market Value: In many jurisdictions, assessed value is a statutory fraction (assessment ratio) of actual market value, sometimes reduced by homeowner homestead exemptions.
- Millage Rates: One mill equals one-tenth of one cent ($0.001) per dollar of assessed property value ($1 per $1,000 of valuation).
- Monthly Escrow Accounting: Servicing banks collect 1/12th of projected annual taxes each month alongside P&I to ensure municipal taxes are paid on schedule without liens.
State-by-State Tax Variance
Effective tax rates range from under 0.35% in states like Hawaii and Alabama to over 2.20% in states like New Jersey, Texas, and Illinois. Factoring in property taxes early is critical because a 1.5% tax swing can alter monthly borrowing capacity by several hundred dollars.