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The Texas Solar Property Tax Exemption, Explained

Texas Tax Code §11.27 makes the value solar adds to a home exempt from property tax — if Form 50-123 is filed. How it works, deadlines, and who files.

Last updated August 3, 2026

Here's a question every Texas solar shopper eventually asks: if panels raise my home's value, do they raise my property taxes too? The answer is a clean no — Texas Tax Code §11.27 grants a 100% exemption on the appraised value a solar (or wind) energy device adds to the property — with one catch that trips up thousands of homeowners: the exemption isn't automatic. It exists only if a one-page form gets filed with the county. In a state with famously heavy property taxes and no state income tax, this exemption is now the headline state-level solar incentive — especially since the federal residential solar tax credit (Section 25D) expired December 31, 2025, leaving no federal credit for typical homeowner purchases.

How the exemption works

The mechanics are homeowner-friendly once you see them:

  • What's exempt: the increase in appraised value attributable to the solar energy device — equipment and installation. If the appraisal district says the system added $20,000 of value, that $20,000 is removed from taxable value. The rest of the home is appraised and taxed normally.
  • Who qualifies: owners of solar or wind-powered devices primarily for production and distribution of energy for on-site use — residential and commercial alike, and regardless of whether the device owner owns the underlying real property. (The "on-site use" framing is why typical rooftop systems qualify even when they export surplus; a device built primarily to sell power is a different animal.)
  • How long it lasts: once granted, it stays in place while the device remains installed and operational — no annual renewal.
  • What it stacks with: homestead exemptions, over-65 provisions, agricultural valuations — §11.27 rides alongside them.

The filing, step by step

  1. Get Form 50-123 — the Comptroller's "Exemption Application for Solar or Wind-Powered Energy Devices."
  2. File it with the county appraisal district (CAD) where the property sits — explicitly not with the Comptroller, and not the IRS. Multi-county properties file in each county.
  3. File between January 1 and April 30 of the tax year you want the exemption. Late-filing accommodations exist in many districts, but April 30 is the date to plan around.
  4. Attach the evidence: description of the device, photos, and invoices for equipment and installation — exactly the closeout package a good installer hands over anyway.
  5. Respond fast if asked. The chief appraiser may request additional information; you get 30 days to respond or the application is denied. If denied, the Appraisal Review Board protest process applies.

One honest nuance: the exemption removes the solar-attributable value, not appraisal error. Districts vary in how they assess (or whether they even capture) solar-added value in mass appraisal, and homeowners retain their normal protest rights on the rest of the valuation.

Why installers should own this

For homeowners this post is a to-do; for installers it's a differentiator that costs almost nothing. The system that makes the home more valuable and the form that keeps that value untaxed should arrive together: put Form 50-123 in every closeout package, pre-filled with the system description, alongside the invoices and photos the form wants attached — and send a January reminder to every customer who installed the previous year. It's a five-minute favor that customers remember at referral time, and it protects the savings math your proposal promised. TexPTO makes the packet part systematic: the closeout checklist on every job carries Form 50-123, so it ships with the invoices and photos instead of depending on someone remembering. The January follow-up is still a send you make yourself — the exemption is homeowner-filed, and we would rather say so than imply a step that isn't there.

FAQ

Do solar panels increase property taxes in Texas? Not if the exemption is filed — §11.27 exempts 100% of the value the system adds. Unfiled, the added value is taxable like any other improvement.

Is there a deadline? File Form 50-123 with the county appraisal district between January 1 and April 30 of the tax year; many districts accommodate late filings, but don't count on it.

Does Texas have a solar tax credit too? No state income tax means no state credit; the property tax exemption (plus utility/REP-level programs) is the state-side story, and the federal residential credit ended December 31, 2025.

Does the exemption transfer when the home sells? The exemption attaches to the qualifying device and property status — new owners should confirm the exemption is reflected (and file if it never was).

Sources

  • Texas Comptroller Form 50-123, Exemption Application for Solar or Wind-Powered Energy Devices (filing instructions; on-site-use scope; 30-day information rule): https://bcad.org/wp-content/uploads/2026/01/50-123-Solar-or-Wind-Powered-Energy-Devices.pdf
  • Guides to §11.27 mechanics, deadlines, and ARB process: https://texaslandtax.com/blog/texas-solar-wind-property-tax-exemption/ and https://blog.squaredeal.tax/texas-solar-property-tax-exemption/
  • Federal 25D expiration (Dec 31, 2025) context: https://www.solarpermitsolutions.com/blog/houston-tx-solar-permit-guide

General information, not tax advice. Exemption practice varies by appraisal district — confirm details with the CAD or a tax professional.

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