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Property Tax Calculator by County

Estimate annual property tax and the monthly property-tax portion of escrow. Use selected official district rates or enter your jurisdiction's rate.

Property and jurisdiction

Manual local data

The assessment ratio applies only to market value. Sourced presets use 100%. City and ZIP lookup is not supported: verify your tax district with the county. Rates here apply to taxable assessed value, not a countywide average of tax divided by market value.

Inputs stay in your browser and are not saved.

Coverage and calculation

Official presets cover two selected Fairfax County districts and Loudoun County's base levy in Virginia for 2026. Other counties require manual rates and a source URL; manual data is not independently verified. No exemptions are automatically included. Dataset checked October 2, 2026; review due December 31, 2026. Check the official source for changes before relying on an estimate.

Assessed value = market value × assessment ratio, or your already-assessed value. Taxable value = assessed value minus the entered exemption. Annual tax = taxable value × rate / 100, rounded to cents, plus entered annual charges. One mill equals 0.1%. Monthly escrow = annual total / 12.

Only the flat assessed-value exemption you enter is included. Eligibility, credits, relief, assessment caps, levy-specific exemptions, prorations and changing rates are not calculated. The exemption applies uniformly to the combined rate; use manual data only when that assumption matches your jurisdiction. Additional charges default to zero; verify omitted taxes and assessments locally.

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