Does Adding Solar Increase Your Property Taxes?

Solar adds real value to your home — which normally means a higher property tax assessment. Most states have specifically carved out an exemption for exactly this reason.

The general rule: most states exempt solar from reassessment

The large majority of states offer a property tax exemption specifically for the added home value attributable to a solar installation, meaning your property tax bill shouldn't increase because you added solar, even though the system genuinely raises your home's market value. This exemption is separate from, and unaffected by, the federal tax credit's expiration.

How the exemption typically works

In states with this exemption, the assessor's office is instructed to value your property "as if" the solar system weren't there for tax purposes, even though appraisers and buyers absolutely do factor it in for a sale. Some states apply this automatically; others require you to file a specific form or application with your local assessor after installation — check your state's specific process rather than assuming it's automatic.

States without a full exemption

A smaller number of states don't offer a specific solar property tax exemption, meaning added home value from solar could theoretically factor into your assessment like any other home improvement, though enforcement and practical impact varies by county assessor.

Check your specific state and county

See your state's incentive note on our state pages for exemption status, and confirm the current filing requirement (if any) with your local county assessor's office directly — this is a small administrative step that's easy to overlook after a solar install but can matter over the system's 25+ year life.