About a quarter of the nation’s homeowners pay more than their fair share of property taxes every year, by the estimates of Seattle-based ValueAppeal, a company that charges a fee to assist customers in appealing their tax assessment. The fee is refundable if the appeal is unsuccessful.
ValueAppeal analyzes whether a particular home is over-assessed compared to nearby, similar properties. The company’s proprietary algorithm takes into account several factors, including a home’s number of bedrooms and bathrooms, construction quality, age, condition, square footage, grade, and whether it has amenities like a golf course or an exceptional view.
Property-tax assessments are created by running an automated valuation model over homes in the county, said Charlie Walsh,