By Rob LaBrecque | Licensed REALTOR® in NH & MA | Updated March 2026⚡ Key TakeawaysOnline estimates like Zillow’s Zestimate can miss actual market value by 5–15% — they’re a starting point, not a pricing tool.Tax assessed value, appraised value, and market value are three different numbers — sellers need to understand market value, which is what a motivated buyer will actually pay right...