Here’s a fun (important!) fact that surprises some folks who adds solar for their property in Texas: the state will exempt 100% of the added property value your system creates from property tax -permanently!- and more than a few owners never actually claim it. I think this happens not because it’s hard or complicated. -It’s just that nobody told them it exists.  Dang.

So here’s the deal folks: The exemption comes from Texas Tax Code Section 11.27, and here’s the plain version: when your appraisal district figures out your property (either residenctial or commercial) is now worth more because of the solar array (and and any on-site battery energy storage).  Under the Texas state tax code, that added value is exempt from property tax. Not reduced. Exempt. You get taxed every year as if the panels were never installed as long as the system exists and stays on your property.

The way you actually get the Tax Exemption

You (or your tax professional) prepare and file Form 50-123 with your county appraisal district. One page. Just fill in your property info, a description of the device(s) (NATiVE Solar can help you with this part), the installation date, and a certification that it’s primarily for on-site use. Deadline is April 30 of the tax year you want it to apply. File it once, and you never have to refile. No annual renewal. It just stays in effect as long as the system’s operating and you still own the property. NICE!

Here’s Some Quick Math

Here’s a scenario that can illustrate what this apprasial tax credit can actually be worth. Using the numbers Texas Land Tax walks through: let’s say your appraisal district determines your solar array added $30,000 in value to your home. At a typical Texas rate around 1.8%, that’s roughly $540 a year you’re not paying, every year, for the life of the system. Run that out over a 25-year system lifespan and you’re looking at $13,000+ in cumulative savings -on a form that takes maybe fifteen minutes to fill out. And good news for anyone worried about “losing” another benefit to get this one: it stacks cleanly with your homestead exemption and, if you’re on ag land, your agricultural valuation too. Filing for one doesn’t cost you the other.

Some Tricky Bits

One place people sometimes get tripped up is the phrase “primarily for on-site use.” So here’s the deal: If your system is powering your house and occasionally sending a little surplus back to the grid through net metering, you’re squarely inside the exemption. Where it gets contested is on the commercial property end — if you lease land to a developer who’s selling essentially all the power to the grid, that’s a different animal, and the landowner’s 11.27 exemption typically won’t apply. For the overwhelming majority of homeowners and small businesses reading this, that’s not your situation, so don’t let it scare you off. (*We go into more detail on the commercial property tax stuff in the next section*)

One thing worth double-checking: Texas has 254 county appraisal districts, and while the law is the same everywhere, how fast and how strictly each one processes Form 50-123 varies. Some want just the form. Others ask for photos, your installation invoice, or your interconnection agreement. Call your CAD before you file, ask what they want alongside the form, and you’ll avoid the most common delay.

Why this matters: this is a real, permanent, no-catch benefit that’s easy to just… not do. If you already have solar and haven’t filed Form 50-123, that’s like fifteen minutes against years of savings you’re potentially currently leaving on the table. And if you’re evaluating a system right now, talk to our team -we’ll help.

It’s a little Different for Commercial Properties

The exemption itself applies the same way -100% of the added value, no annual refiling- but there are three real differences you (or your tax folks) need to know if you’re evaluating solar for a business even though it’s that sasme tax form (50-123).

1. It covers you even if you don’t own the building. Since a 2021 update to the law (Section 11.27(a-1), added by SB 63), the exemption applies to whoever owns the solar equipment, regardless of who owns the real property it sits on. That matters for commercial tenants who install their own system, and for third-party-owned (TPO) commercial arrays -the exemption follows the equipment owner, not the landlord.

2. It may need to go on your annual business personal property rendition. If your appraisal district classifies the solar equipment as business personal property (BPP) rather than a real property improvement, you’ll need to attach a copy of your BPP rendition when you file Form 50-123, and keep listing that equipment on your rendition going forward. Texas businesses file BPP renditions every year by April 15 regardless (via Gill, Denson & Company), so
this isn’t extra paperwork you wouldn’t otherwise be doing -but unlike a homeowner’s one-and-done Form 50-123, the exempt value has to keep showing up correctly on that annual filing so it doesn’t accidentally get taxed by mistake.

3. It can conflict with a Chapter 312 abatement. This is the one that can sometimes catch commercial and industrial developers off guard. Since September 1, 2021, if a parcel already has (or is entering into) a Chapter 312 property tax abatement, that parcel cannot also claim the Section 11.27 solar exemption -the two are mutually exclusive on the same piece of real property. If your facility is pursuing or already holds a 312 abatement for a broader expansion or relocation, get your tax advisor involved before you assume you can stack a solar exemption on top of it.

As we mentinoed above, Texas has hundreds of county appraisal districts and how each processes Form 50-123 varies. Again, some may ask for photos, installation invoice, and/or the interconnection agreement. Call your CAD for details!

Why this matters: this is a real, permanent, no-catch benefit that’s easy to just… not do -and for commercial property owners specifically, there are a couple of structural questions (ownership structure, BPP classification, any existing abatement) worth resolving before you file rather than after. If you already have solar and haven’t filed Form 50-123, that’s fifteen minutes against years of savings you’re currently leaving on the table. And if you’re evaluating a system right now  -residential or commercial- talk to our team and your tax professional.

Thanks for reading, y’all!

The obligatory disclaimer here :)  – NATiVE Solar is a solar and battery storage design and installation company -not a tax, legal, or accounting firm. This article is provided for general informational purposes only and shouldn’t be treated as tax or legal advice. Rules, deadlines, and documentation requirements vary by county and can change, so confirm your specific situation with a licensed CPA, tax attorney, or your county appraisal district before filing. 

Sources
● Texas Solar and Wind Property Tax Exemption: Your Guide to Form 50-123 — Texas Land Tax, updated
August 6, 2026
● Texas Tax Code, Section 11.27 — Texas Legislature (via Justia)
● Form 50-123, Exemption Application for Solar or Wind-Powered Energy Devices — Texas Comptroller of
Public Accounts
● Don’t Forget to File Your Texas BPP Rendition by April 15 — Gill, Denson & Company Tax Advisors