What Is Market Approach
The market approach is a property valuation method that estimates value based on actual sales prices of comparable properties. Assessors use this method to set your property's assessed value, and it's the same approach real estate appraisers use when determining mortgage lending values. For property tax assessment purposes, the market approach directly influences your tax bill because assessed value multiplied by your local tax rate equals what you owe.
How Assessors Use It in Your Assessment
Your local assessor's office applies the market approach by identifying recent arm's-length sales of similar properties in your area, typically within the last 6 to 12 months. They then adjust for differences in location, size, condition, lot characteristics, and amenities. For example, if a comparable home sold for $320,000 but has an extra bedroom you don't have, the assessor might subtract $15,000 to reach your property's estimated value.
The assessment ratio in your jurisdiction matters significantly here. If your state uses a 50% assessment ratio, a property worth $400,000 on the open market receives an assessed value of $200,000. Some states use 100% assessment ratios. Check your state's requirement, as this directly affects how your assessed value translates to tax dollars.
Challenging Your Assessment Using Market Approach
When you file a board of review hearing or formal appeal, the market approach is your strongest defense. Bring your own comparable sales data showing that properties similar to yours sold for less than the assessed value your assessor assigned. Documentation matters: include MLS printouts, closing statements, days on market, and details about any property condition differences.
- Gather 3 to 5 recent comparable sales from your immediate area, ideally within one-quarter mile
- Document adjustments for square footage, lot size, roof condition, mechanicals, and any major upgrades or defects
- Present sales data from the past 12 months, as older sales carry less weight in board of review hearings
- Note any non-arm's-length transactions (sales between family members or distressed sales) and exclude them, as they don't reflect true market value
Market Approach vs. Other Valuation Methods
Assessors may also use the income approach (for rental properties, calculating value from net operating income) or the cost approach (replacement cost minus depreciation). The market approach is generally preferred because it reflects actual buyer behavior. If your assessor used a different method and you disagree, point this out at your board of review hearing and demonstrate that comparable sales data supports a lower value.
Common Questions
- What if there aren't many recent sales in my area? Assessors expand their search radius. For rural properties or unique homes, they may look 1 to 2 miles out. However, this means comparables are less precise, giving you stronger grounds to argue that their adjustments are excessive. Present tighter, more local comparables if you can find them.
- Can I use a property listing price instead of a sale price? No. Only closed sale prices matter in the market approach. A listing price reflects asking price, not actual market value. Use recorded deed sales prices or MLS sold data.
- Do I need a professional appraiser to challenge my assessment? Not required, but helpful. If you hire a licensed appraiser to prepare a market approach analysis supporting a lower value, that document carries significant weight in board of review hearings. Appraisals typically cost $300 to $600 and take 7 to 10 days.