A lower home price can come with a higher annual property-tax bill. Compare the dollars your household would pay, not just a state's reputation or an advertised tax percentage. The county layer in MoveNumbers is a screening estimate; it is not a quote for a property you are considering.
Three numbers that should stay separate
- Home value: a sale price, appraisal, assessed value and Zillow typical-value estimate are different measures.
- Tax amount: the annual bill or estimate for a specific property.
- Effective rate: a tax amount divided by a chosen value, expressed as a percentage. It is not necessarily the jurisdiction's statutory rate.
MoveNumbers' county effective-rate calculation divides a stored county tax amount by a stored home-value estimate. These aggregate inputs may come from different periods and do not describe one matched property. Use the resulting map to identify places worth checking, not to calculate a final bill.
A comparison in dollars
For an illustrative $300,000 property, a 1% effective rate corresponds to $3,000 per year or $250 monthly. At 2%, the same assumed value corresponds to $6,000 or $500 monthly. The $250 difference would reduce an otherwise $400 monthly housing advantage to $150. These percentages are examples, not rates quoted for any county.
If taxes are collected through escrow, including both the escrow payment and the entire tax bill as monthly expenses would double count the same cost. Conversely, comparing only principal and interest omits it. Use the actual payment breakdown.
Verify the parcel before relying on the estimate
- Locate the property using the relevant county assessor or tax collector's official records.
- Check the latest bill and the tax year it covers.
- Ask how the proposed purchase affects the assessment and whether existing exemptions apply to you. Rules vary; do not assume the seller's bill continues unchanged.
- Identify any separately charged assessments, district levies or other recurring property costs.
- Request a property-specific estimate for your budget and retain its assumptions.
Bring it into the housing comparison
Enter the verified tax amount, loan terms, insurance and dues in the mortgage calculator. Keep maintenance and utilities in your broader budget. The CFPB's home-buying resources can help you interpret loan and payment information; local authorities determine property-tax details.
For the source distinction between a typical home value and a sale price, see Zillow's data definitions. No national percentage in this guide substitutes for a local tax estimate.