No, because the appraised value doesn't set your taxes or your insurance. Property taxes come from the county assessor's office, based on the assessed value they assign, which in many states is tied to your purchase price. The loan appraisal is never reported to or used by the assessor. Homeowners insurance runs on its own math too. Your premium is based on the insurer's replacement-cost estimate, meaning what it would cost to rebuild the home. A home appraising at $300,000 versus $600,000 wouldn't by itself change the premium, because rebuild cost is a different calculation from market value. So a high appraisal is generally good news for your equity and your financing, with no tax or insurance side effect. Where deals actually get shaky is when an appraisal comes in low. That's the scenario worth watching for.