TREC Promulgated Contracts: Why Texas Is Different (2026)

Texas is one of the few states where a state agency, not the parties or their attorneys, writes the actual contract language used in most home sales. The Texas Real Estate Commission (TREC) adopts, or "promulgates," standardized contract forms under Texas Occupations Code §1101.155, and a license holder who prepares a contract for a residential sale must use one of these forms rather than draft custom language. There are currently six promulgated contract forms, covering everything from a standard resale to farm and ranch property, and every one of them is built on the same underlying legal authority: 22 Texas Administrative Code (TAC) Chapter 537. This matters well beyond the exam room. Every escrow, every option period, and every financing contingency a Texas agent handles in their first year runs through one of these six forms, so misunderstanding the system isn't a trivia gap — it's a liability gap.

The Texas Real Estate License Act (TRELA), codified at Occupations Code §1101.155, authorizes TREC to adopt rules requiring license holders to use contract forms prepared by the Texas Real Estate Broker-Lawyer Committee. That committee has 13 members: 6 appointed by TREC, 6 appointed by the State Bar of Texas, and 1 public member appointed by the Governor's office. The Broker-Lawyer Committee drafts and revises the forms; TREC then formally adopts them by rule inside 22 TAC Chapter 537, with Rule 537.11 setting out the general requirement to use standard contract forms. This two-body structure (real estate professionals plus practicing attorneys) is why promulgated forms hold up so well in court — they're vetted by both sides of the transaction before an agent ever hands one to a client. It's also why Texas TREC-promulgated contract forms are one of the most heavily tested categories on the state portion of the Texas Real Estate Sales Agent Exam. The rulemaking pattern repeats for every form: the Broker-Lawyer Committee proposes or revises language, TREC publishes it for public comment, and the Commission votes to adopt it into 22 TAC Chapter 537 as a numbered section — for example, the One to Four Family Residential Contract lives at 22 TAC §537.28. That section number, not just the form number, is what a citation in a lawsuit or a TREC complaint will reference.

As of 2026, TREC promulgates exactly six standard contract forms for real property sales: the One to Four Family Residential Contract (Resale), the New Home Contract (Incomplete Construction), the New Home Contract (Completed Construction), the Farm and Ranch Contract, the Residential Condominium Contract (Resale), and the Unimproved Property Contract. The most commonly used of the six, the One to Four Family Residential Contract (Resale), is TREC No. 20-18, with a revised version (20-19) adopted May 4, 2026 and mandatory for use starting July 1, 2026. Each form shares a nearly identical structure — numbered paragraphs covering the parties, property description, sales price, financing, closing date, and title — which is deliberate. A licensee who understands one promulgated contract's paragraph numbering can navigate all six, and exam questions frequently test which paragraph governs which topic. In the 1-4 Family contract, financing terms live in Paragraph 4, the option-to-terminate fee lives in Paragraph 23, and the addenda checklist lives in Paragraph 22. The two New Home Contracts exist because a home under construction carries risks — unfinished specifications, builder warranties, completion deadlines — that a resale contract's paragraphs simply don't address. Using the Resale contract for new construction, or vice versa, is a common new-agent mistake precisely because the paragraph numbers look almost identical between forms.

TREC's authority under §1101.155 is narrow: it covers contracts for the sale of real property. TREC does not promulgate listing agreements, buyer representation agreements, property management agreements, commercial contracts, or residential leases (other than a temporary residential lease used in connection with a sale). For those documents, TREC's own guidance directs license holders to a trade association, such as Texas REALTORS®, or an attorney. This distinction shows up constantly in brokerage agreements coursework, because it's a common exam trap: students assume every real estate document in Texas is government-issued when in fact the promulgation requirement applies to a specific, narrow list of sales contracts. Mixing this up on the exam — or in practice — is one of the fastest ways to accidentally give clients bad advice about which forms are optional. In practice, most Texas brokerages resolve this gap by adopting Texas REALTORS® trade-association forms as their in-house standard for listings, buyer representation, and leases, layering broker-specific addenda on top. That means a new agent's forms library at a brokerage is really two systems stacked together: state-mandated TREC forms for the sale contract itself, and association or attorney-drafted forms for everything that surrounds it.

If the base contract is fixed, how does Texas handle deal-specific terms like financing contingencies or HOA disclosures? Through addenda. Paragraph 22 of the One to Four Family Residential Contract lists every addendum that becomes part of the agreement, and an addendum only has legal effect once it is checked off and attached there. TREC promulgates dozens of standard addenda alongside the six base contracts — among them the Third Party Financing Addendum (TREC No. 40-10), the Addendum for "Back-Up" Contract (No. 11-9), the Addendum for Coastal Area Property (No. 33-2), the Addendum for Authorizing Hydrostatic Testing (No. 48-1), and the Addendum for Sale of Other Property by Buyer. The addenda system is also where Texas's unique earnest-money mechanics show up: agents drafting a contract with an unrestricted right to terminate need to route that language through the option fee, not through custom paragraph edits, since Paragraph 23 of the 1-4 Family contract already defines how the option period works. Because addenda are themselves promulgated forms, the same §1101.155 restriction applies: an agent cannot draft a substitute addendum from scratch to cover a gap a standard addendum already addresses. When a transaction genuinely needs language TREC hasn't promulgated — an unusual seller financing arrangement, for instance — the correct move under Rule 537.11 is to have an attorney draft a special-provision addendum for that specific deal, not to have the agent improvise contract clauses inside Paragraph 11 (Special Provisions) of the base form. TREC has repeatedly flagged Paragraph 11 misuse as a leading source of unauthorized-practice-of-law complaints.

The reason Texas locks contract language down this tightly is the unauthorized practice of law (UPL). A real estate license does not authorize a person to draft original legal language, and inserting custom clauses into a promulgated form — beyond filling in blanks or checking boxes — can cross into UPL, exposing the agent to both a State Bar complaint and TREC discipline. TREC's own Unauthorized Practice of Law Working Group has recommended rule amendments to Section 537.11 specifically to clarify where filling in a form ends and drafting legal language begins. On the licensing side, violations tied to contract and brokerage misconduct under Occupations Code §1101.652 carry administrative penalties set by the Schedule of Administrative Penalties in 22 TAC §535.191. Lower-tier violations run $100 to $1,500 per violation per day, mid-tier violations run $500 to $3,000 per violation per day, and the most serious categories — including several tied to how contracts and funds are handled — run $1,000 to $5,000 per violation. That penalty structure, paired with the standards of conduct every sponsored agent operates under, is exactly why brokers train new agents to fill in blanks and attach addenda rather than write their own contract clauses. TREC has also weighed in directly on whether non-license holders can use the forms at all: the forms themselves are public documents, but TREC warns that a mistake in completing one can create an unenforceable contract or financial loss for parties who aren't trained in their correct use — which is precisely why the forms are built around a licensed intermediary in the first place.

The promulgated-forms system is tested on the Texas Sales Agent Exam because it's foundational to how every Texas transaction actually closes: know the six forms, know what's not promulgated, and know that Paragraph 22 (addenda) and Paragraph 23 (termination option) are where deal customization legally happens. New agents who treat this as exam trivia rather than daily-practice knowledge tend to relearn it the hard way during their first contract-to-close cycle, when a broker asks why they tried to hand-write a special provision instead of attaching the correct addendum. The forms also resurface throughout a Texas agent's continuing education: the mandatory Legal Update I and Legal Update II courses (part of the 4-hour SAE requirement) are updated whenever TREC revises a promulgated form or addendum, which is why the 20-18-to-20-19 transition scheduled for July 1, 2026 will appear in that year's Legal Update curriculum before it shows up in daily transactions. If you're building a study plan around Texas contract law, pair this topic with the types of contracts chapter and review how the IABS disclosure interacts with the same transaction paperwork. Day One's Texas practice exams weight promulgated-forms and contract-law questions at the same proportion TREC uses on the actual exam, so you drill the paragraph-by-paragraph details — not just the six form names — before test day.