Own Luxury Homes®
How to Dispute Your Property Tax Assessment
Only <3% of homeowners appeal; most overpay. Typical savings: 5–15% = $500–3,000+/yr. 5 steps: (1) note 30–90 day deadline from notice; (2) pull property record, check errors; (3) find 3–5 comparable sales below assessed value; (4) informal review first; (5) formal hearing if needed. Strongest evidence: recent purchase price; factual error in property record. Weak: "my neighbor pays less" (equity arguments not grounds for appeal). Own Luxury Homes® 12-Point Agent Integrity Audit™ — new buyer appeal: purchase price vs assessed value.
How to Dispute Your Property Tax Assessment: The Step-by-Step Process That Actually Wins
Less than 3% of homeowners appeal their property tax assessment each year. Yet in any given year, a meaningful percentage of assessments contain errors — wrong square footage, wrong bedroom count, wrong lot size, or simply a market-value estimate that outpaced the actual comparable sales. A successful appeal saves $500–3,000+ per year for as long as the reduction holds. The process is free at the informal level and takes a few hours. This guide gives you the exact steps.
When an Appeal Is Worth Filing
| Situation | Appeal Likely Worth It? | Reason |
|---|---|---|
| Assessed value exceeds recent purchase price | Yes | The sale itself is strong evidence of market value; assessors should not assess above sale price in the year of purchase |
| Assessed value exceeds comparable recent sales | Yes | If similar homes sold for less, comparables support a reduction |
| Assessor's property record shows wrong data | Yes | Factual error (wrong square footage, wrong beds/baths, missing deductions) = correction without needing comparables |
| Assessment rose sharply year-over-year without explanation | Yes, investigate | May reflect market data or a reclassification error; worth examining |
| Assessment is at or below comparable sales | No | Appeals require evidence of overassessment; if assessment is accurate, no case exists |
| Property is exempt or partially exempt and exemption is missing | Yes — file for exemption, not an appeal | Homestead, senior, veteran, disability exemptions reduce taxable value; file with assessor directly |
The 5-Step Appeal Process
Step 1: Understand Your Deadline
Every county has a deadline for filing an appeal after the assessment notice is mailed. Typical window: 30–90 days. Missing this deadline forfeits your right to appeal for the current tax year. Look for the appeal deadline on the assessment notice itself or on your county assessor's website. Mark your calendar immediately when the notice arrives.
Step 2: Pull Your Property Record
Visit your county assessor's website and pull the official property record for your parcel. Verify: square footage, lot size, bedroom count, bathroom count, year built, number of stories, garage status, and any special features the assessor is crediting. Compare to your closing documents, inspection report, and the actual property. Errors are common — and an error is the easiest case to win because correction requires no market argument.
Step 3: Gather Comparable Sales
Find 3–5 recent sales (within 12 months, ideally 6) of properties in your neighborhood that are similar in size, age, and condition. Your sale price (if recently purchased) is the strongest single comparable. Sources: the county assessor's website often has sales data; Zillow, Redfin, and Realtor.com show sold listings; your real estate agent can pull a CMA from the MLS. You need the sold price, the property characteristics, and the sale date for each comparable.
Step 4: File the Informal Appeal First
Most counties offer an informal review process before the formal hearing board. Request an informal meeting with an assessor's office staff member. Present your comparables and any factual corrections. Many cases resolve at this stage without a formal hearing. If the informal review doesn't produce a satisfactory reduction, request a formal hearing before the assessment appeals board.
Step 5: Present at the Formal Hearing
Bring printed or organized digital evidence: your comparables with addresses, sale dates, and prices; photos of your property vs the comparables if condition differs; the assessor's property record with errors marked; an independent appraisal if you commissioned one ($300–$600). Be factual and specific. The board wants evidence, not arguments about fairness. "Comparable at 123 Main St sold for $380,000 in October 2025; my property is assessed at $420,000" is a complete argument. Dress professionally and be respectful; you are asking a board to overrule their staff.
Evidence That Wins Appeals
| Evidence Type | Strength | How to Use It |
|---|---|---|
| Recent purchase price (within 12 months) | Strongest | Your sale IS the market; assessor should assess at or below sale price in most cases |
| 3–5 comparable sales below assessed value | Strong | Shows the assessor's value exceeds what the market pays for similar properties |
| Factual error in assessor's property record | Very strong | Wrong square footage = provable error; correction doesn't require market argument |
| Independent appraisal below assessed value | Strong | $300–$600 cost; professional opinion; carries weight at formal hearings |
| Assessor's own sales data showing lower values | Strong | Using the county's own database to show comparable sales undermines their position |
| "My neighbor pays less" | Weak alone | Equity arguments are not grounds for appeal in most jurisdictions; you must show overassessment, not inequality |
After a Successful Appeal
| What Happens | Timeframe |
|---|---|
| Assessment is reduced to agreed or board-determined value | Effective for current tax year in most cases |
| Tax bill recalculated at new assessed value | Revised bill issued; any overpayment refunded or credited |
| Reduction carries forward to subsequent years | Yes — unless assessor adjusts upward in future annual reassessment |
| Can you appeal again next year? | Yes — if assessment rises again, you can appeal each year |
“The appeal I always advise first-year buyers to make: the one based on the purchase price. If you bought for $450,000 six months ago and the county assessed at $490,000, your closing settlement statement is your entire case. "We paid $450,000. That is market value. Here is the HUD-1." That appeal takes 20 minutes to prepare and has a very high success rate. The savings persist for years.”
— Ryan Brown, Principal Broker & CEO, Own Luxury Homes®
How do I appeal my property tax assessment?
Step 1: note the appeal deadline on your assessment notice (30–90 days from mailing; hard deadline). Step 2: pull your county property record and check for factual errors (wrong sqft, beds, baths). Step 3: find 3–5 recent comparable sales below your assessed value. Step 4: request an informal review with the assessor's office. Step 5: if needed, file a formal hearing with the appeals board. Bring comparables, any error documentation, and your purchase price (strongest evidence).
What evidence wins a property tax appeal?
Strongest: your recent purchase price (within 12 months) below the assessed value. Strong: 3–5 comparable recent sales below assessed value; factual errors in the property record; independent appraisal. Weak: "my neighbor pays less" (equity arguments rarely accepted). Success rate with strong comparable evidence: 60–75% at informal review level.
Is a property tax appeal worth it?
Almost always, if you have a legitimate case. Cost: free to file; 2–4 hours of preparation. Typical savings on success: 5–15% reduction = $500–3,000+/year. The savings persist annually until the assessor adjusts again. A $1,500/year reduction saved for 5 years = $7,500 for a 4-hour investment.
Can I hire someone to appeal my property taxes?
Yes. Property tax consultants and tax attorneys handle appeals for a contingency fee (typically 25–40% of first-year savings). At the informal and formal hearing level, a consultant is rarely necessary. For high-value properties ($1M+) or complex situations (commercial, special use), professional representation is worth the contingency fee.
Own Luxury Homes® — new buyers: check assessed value vs purchase price immediately. 12-Point Agent Integrity Audit™. Talk to a specialist ›
"The introduction Own Luxury Homes® makes is to a specialist with documented closing history in your specific market — not the county, not the metro, the submarket you're actually selling or buying in. That's the standard we verify before your name goes anywhere."
— Ryan Brown, Principal Broker & CEO, Own Luxury Homes® (FL License BK3626873)