The Texas Circuit Breaker Cap (§23.231) — Non-Homestead Residential 20% Limit

For half a century, Texas non-homestead residential property had no annual cap on appraised-value growth. A rental property owned by a Plano landlord could see its CAD-appraised value jump 60% in a single year — and there was no statutory protection. The 2023 Texas Legislature, responding to the post-pandemic property tax crisis that hit non-homestead owners particularly hard, passed Senate Bill 2 and the related Proposition 4 amendment. One of the central provisions: a new circuit-breaker cap, codified as Tax Code §23.231, that limits non-homestead residential appraisal growth to 20% per year. This guide explains what it does, who qualifies, the math, and the protest paths if your CAD applies it incorrectly.

Background: why the circuit breaker exists

Between 2020 and 2023, Texas non-homestead residential property — rental homes, second homes, investment properties, vacant residential lots — experienced the largest two-year appraised-value increase in modern state history. Travis County saw 40-60% appraised-value jumps in 2022. Harris County saw similar pressure on non-homestead residential parcels. Williamson, Hays, Bell, and other rapid-growth counties followed.

Owners of these properties had no statutory relief. The §23.23 homestead cap limits annual growth to 10% but applies only to owner-occupied principal residences. Non-homestead residential had no cap at all. A landlord with five rental properties in DFW could see appraised values jump 30-50% across the portfolio in a single year, with no procedural mechanism beyond a market-value protest.

The political response came in the 2023 legislative session. Senate Bill 2 (Bettencourt, R-Houston) bundled multiple property tax reforms: increased homestead exemption from $40,000 to $100,000 (via Constitutional amendment Proposition 4, ratified November 2023), the new §23.231 circuit-breaker cap, and several procedural reforms. The Proposition 4 vote passed with 83% support. The combined effect was the most significant Texas property tax reform since the 2007 Robin Hood overhaul.

The statutory text

The circuit breaker is codified at Texas Tax Code §23.231, titled "Circuit Breaker Limitation on Appraised Value of Real Property Other Than Residence Homestead." The operative subsections:

"(b) Subject to Subsections (c)... the appraised value of real property... for the current tax year is the lesser of:
(1) the market value of the property; or
(2) the sum of:
(A) 120 percent of the appraised value of the property for the preceding tax year; and
(B) the market value of all new improvements to the property." — Texas Tax Code §23.231(b)

Translation: each year, the appraised value of qualifying property cannot exceed the prior year's appraised value × 1.20 (plus the value of any new improvements). If the market value is lower than that capped amount, the market value applies. Either way, the homeowner pays tax on the lesser of the two numbers.

Who qualifies for the §23.231 cap

The cap applies to real property that meets all three conditions:

1. Is residential — improved or unimproved, but residential in character (residential structures, vacant land zoned/used residentially).
2. Is not the owner's residence homestead — so not already covered by the §23.23 10% cap.
3. Has an appraised value of less than $5,000,000 as of the prior year's certification.

Common qualifying property types:

• Rental homes — single-family residential rentals, including SFR portfolios held by investors
• Second homes / vacation properties — residential properties not used as a principal residence
• Vacant residential lots — unimproved residential land
• Investment properties — small-scale residential investment holdings
• Inherited residential property — when the heir does not occupy it as a principal residence
• Properties under renovation — pre-occupation residential structures

Common non-qualifying property types:

• Owner-occupied homestead (covered by §23.23 10% cap instead)
• Commercial property — office, retail, industrial, mixed-use commercial
• Multifamily rental over 4 units — large apartment complexes (treated as commercial)
• Properties at $5M or above — high-value residential
• Agricultural land with special appraisal under §23.51 (the ag-use valuation applies separately)

How the cap is computed

For each qualifying property in each year, the appraised value cannot exceed:

Two important details:

• Base year: the cap is computed off the prior tax year's appraised value, not the market value. If the prior year's appraised value was itself below market due to the cap, this year's cap continues to compound off that lower number.
• New improvements: if you add a structure, addition, pool, or other improvement, the market value of that new improvement is added to the capped amount. The cap only protects existing improvements + land from runaway value growth.

§23.231 vs §23.23 (the homestead cap)

Both caps serve similar protective functions but with key differences:

The two caps cannot apply to the same property at the same time. A residential property either is a homestead (10% cap) or it is not (20% cap if eligible, otherwise no cap). Status changes flip the cap from one to the other.

What happens when status changes

Property status changes between homestead and non-homestead trigger cap transitions. Three common scenarios:

Scenario A: Homestead becomes rental

You move out of your homestead and start renting it. In the year following the move-out:

• The §23.23 homestead cap ends (you no longer occupy)
• The §23.231 circuit breaker applies (now non-homestead residential)
• The base year for the 20% cap is the year before status change

Scenario B: Rental becomes homestead

You convert a rental property to your principal residence:

• The §23.231 cap ends
• The §23.23 homestead cap begins the year after you establish principal residency
• The base year for the 10% cap is the year you first qualify as homestead

Scenario C: Property changes ownership

Property sells from one owner to another:

• The prior owner's §23.23 cap (if applicable) ends
• The new owner's first full ownership year becomes the new base year — for whichever cap applies based on use
• If the new owner does not establish homestead, only §23.231 applies (if eligible)

The 2026 sunset

The political pressure to extend is significant — Texas non-homestead residential owners (landlords, second-home owners, real estate investors) became a more vocal constituency during 2020-2023 and lobbied hard for the original cap. Extension is likely but not certain. Property owners benefiting from the cap should monitor the 89th Texas Legislative Session (January-May 2027) for action on the sunset.

If the cap expires without extension, non-homestead residential properties revert to uncapped market-value appraisal beginning in tax year 2027. This could produce significant year-over-year jumps for properties that benefited from the cap throughout 2024-2026.

Protesting if the cap is applied wrong

The §23.231 cap is mechanical — once a property qualifies, the CAD's computer system should apply it automatically. However, errors do occur:

• Eligibility denied — the CAD classifies your property as commercial when it's residential, or claims it exceeds $5M when it doesn't
• Wrong base year — the CAD uses the wrong prior-year value as the base for the 20% calculation
• New improvement overstated — the CAD adds more value for "new improvements" than was actually built
• Status change misapplied — the CAD continues applying the homestead cap after you moved out, or fails to apply the circuit breaker after status changed

Form 50-132 (Notice of Protest) has a specific checkbox for these issues: "Circuit breaker limitation on appraised value for all other real property was denied, modified, or canceled." Check this box on Section 3 of Form 50-132 along with any other applicable grounds. See our Form 50-132 walkthrough for the field-by-field details.

The protest deadline is the standard May 15 (or 30 days after appraisal notice), with the same procedural path as any other protest.

Worked examples

Example 1: Rental home that benefits from the cap

Example 2: Status change from homestead to rental

FAQ

What is the Texas circuit breaker on property tax?

A 20% annual cap on the appraised value of non-homestead residential real property valued at less than $5 million, codified at Tax Code §23.231. Enacted via Senate Bill 2 (2023) and Proposition 4 (November 2023 ballot). Effective starting tax year 2024. Sunset December 31, 2026 unless extended.

Who qualifies for the §23.231 circuit breaker?

Owners of (1) residential real property that is (2) not their residence homestead and (3) appraised at less than $5 million. Common qualifying properties: rental homes, second homes, vacant residential lots, investment properties.

How does the 20% cap interact with the homestead exemption?

They're mutually exclusive — a property is either a homestead (10% cap under §23.23) or it's not (20% cap under §23.231 if eligible). Both caps cannot apply to the same property at the same time. Status changes (homestead becoming rental, or vice versa) flip the cap.

Can I protest if the §23.231 cap was applied wrong?

Yes. Form 50-132 has a specific checkbox for circuit-breaker errors. File by May 15 or 30 days after appraisal notice. Common errors: eligibility denied, wrong base year, status change misapplied.

Will the Texas circuit breaker be extended past 2026?

Under current law, it expires December 31, 2026. Whether it is extended depends on the 89th Texas Legislative Session (January-May 2027). Extension is politically popular but not guaranteed.

Does the circuit breaker apply to multifamily apartment buildings?

Generally no for larger apartments (5+ units) which are typically treated as commercial. Single-family rentals, duplexes, triplexes, and 4-plexes are typically residential and may qualify if other conditions are met. Verify with your CAD or property tax attorney for borderline cases.

Does the cap apply to short-term rentals (Airbnb / VRBO)?

If the property is residential in character and not the owner's homestead, yes — the cap should apply. Some CADs have begun classifying intensive short-term rentals as commercial use; this can become a protest issue if the CAD denies eligibility.

How is the cap computed if I added an addition during the year?

The cap is computed as (prior year appraised value × 1.20) PLUS the market value of any new improvements made during the year. So if you added a $50,000 addition, the cap allows $50,000 above the standard 20% growth. The protective effect of the cap excludes new construction by design.