TREC 1-4 Family Contract: Texas Residential Purchase Agreement Explained

What Is the TREC 1-4 Family Contract?

The TREC 1-4 Family Residential Contract (Resale) is the standard purchase agreement used for buying and selling existing 1-4 family homes in Texas. It's promulgated by the Texas Real Estate Commission, which means that Texas real estate license holders — agents and brokers — are required to use this specific form for covered transactions. Using a non-promulgated form, or altering the contract's language without attorney involvement, violates TREC rules and can expose a license holder to disciplinary action.

The 'resale' designation distinguishes this contract from the TREC contract used for new construction (TREC 24-18). If you're purchasing a home from a builder who's constructing the property, a different promulgated form applies. The 1-4 Family (Resale) contract is specifically for buying an existing home from its current owner — the most common residential real estate transaction in Texas.

'1-4 family' refers to the number of residential units: the contract covers single-family homes, duplexes, triplexes, and fourplexes. A buyer purchasing a standalone house uses this contract. So does a buyer purchasing a duplex. The property can be a primary residence, a second home, or an investment property — the contract form is the same regardless of the buyer's intended use.

TREC promulgates forms specifically to protect all parties in real estate transactions in Texas. The promulgated contract has been reviewed, revised, and approved by TREC with input from legal professionals, industry stakeholders, and consumer advocates. When both buyer and seller sign the TREC 1-4 Family Contract, they're operating under a framework that reflects Texas law and industry standards — which benefits both parties more than a one-sided, privately drafted agreement would. Trec real estate forms are available for free download at TREC's official website; agents should always verify they're using the most current version before presenting a contract to clients.

The 1-4 contract is executed when an offer is made. The buyer (and their agent) typically fills out the contract, presents it to the seller, and the seller accepts, counters, or rejects. Once both parties sign an executed copy, the contract becomes binding and the transaction moves toward closing. The contract governs the entire transaction: what's being sold, for how much, how it will be financed, what happens to the earnest money if things fall through, when closing occurs, and how possession transfers.

How Agents and Buyers Use the TREC 1-4 Contract

In practice, the TREC 1-4 Family Contract is prepared by the buyer's agent when the buyer wants to make an offer on a home. The agent fills in the blanks — purchase price, earnest money amount, option period duration, closing date, financing details, and any addenda — in consultation with their buyer client. The completed contract is then presented to the listing agent, who presents it to the seller. The seller can accept, reject, or counter.

During negotiation, parties often exchange amendments to the contract. An amendment changes the terms of an already-executed contract — for example, extending the closing date or adjusting the purchase price after an inspection reveals issues. Amendments must be signed by both parties to be effective. An addendum, by contrast, is attached at the time the offer is made and expands or modifies the contract's terms for a specific purpose (e.g., the Third Party Financing Addendum for financed purchases, or the HOA Addendum for properties in homeowners associations).

The option period is one of the most important features of the TREC 1-4 contract from a buyer's perspective. During the option period — typically 5–10 days, negotiated between the parties — the buyer pays an option fee (paid directly to the seller) in exchange for the unrestricted right to terminate the contract for any reason.

Buyers use the option period to conduct inspections, review HOA documents, and finalize their financing. If the buyer terminates within the option period, they lose only the option fee; the earnest money is returned. After the option period expires, terminating the contract without a valid contractual basis generally results in forfeiture of the earnest money.

Earnest money amounts vary — commonly 1% of the purchase price — and are held by the title company or escrow agent. The earnest money is credited toward the buyer's closing costs at settlement. If the deal falls through due to a financing contingency (the buyer can't get their loan), a title defect the seller can't cure, or the seller's failure to perform, the earnest money is typically returned to the buyer. If the buyer terminates without a valid contractual basis after the option period, the seller generally keeps the earnest money.

License holders using the 1-4 contract must understand every section and be able to explain it to their clients. TREC's promulgated contract is designed for public use — the language is accessible — but the practical implications of each provision require agent knowledge and judgment. Trec real estate license holders are expected to understand promulgated forms as a core competency; this knowledge is tested on the Texas real estate license exam and reinforced through continuing education. Agents who present contracts without understanding what they're recommending expose themselves to liability and their clients to adverse outcomes.

Common Issues and Tips for Filling Out the 1-4 Contract

The TREC 1-4 contract has many blanks, and the choices made in those blanks have real consequences. Here are the most common areas where agents and buyers encounter issues or confusion.

Property description accuracy is critical. The legal description of the property must match the deed exactly. Using a street address alone is insufficient — the legal description (lot, block, subdivision, county) is what legally identifies the property being conveyed. Agents should pull the legal description from the county appraisal district records or the current deed and verify it carefully before including it in the contract.

Inclusions and exclusions generate more disputes than almost any other section. The contract specifies that fixtures — items permanently attached to the property — convey with the property unless specifically excluded. The seller must list any items they intend to take with them: a chandelier they want to keep, a storage building they'll remove, a refrigerator that's staying or going. Leaving this unclear is a common source of post-closing disputes. Agents should walk through the property with their clients and explicitly address every item of uncertain status.

The financing addendum details matter for financed purchases. The buyer's agent must specify the correct loan type, maximum interest rate, and origination fee terms. The financing contingency protects the buyer if they're unable to obtain financing on the stated terms — but only if those terms are accurately captured in the addendum. If the addendum says the buyer needs a conventional loan at 7% and the buyer later can't qualify, they can exit under the financing contingency. If the addendum's terms were stated incorrectly, the buyer's exit rights may be limited.

The closing date is contractually binding. If either party fails to close by the closing date, the other party may have grounds to terminate or declare default. Agents should set closing dates that realistically account for the lender's timeline, any required inspections, and title work. Loan processing timelines in Texas typically run 30–45 days; contracts with aggressive closing dates often require amendments if the lender needs more time. It's better to set a realistic closing date at the outset than to execute an amendment under pressure later.

Trec real estate license holders who regularly work with the 1-4 contract develop intuition for the choices that generate disputes — inclusions and exclusions, option period length relative to market conditions, earnest money amounts in competitive markets, and financing addendum specifics. New agents benefit significantly from mentorship or supervision when executing their first several contracts.

TREC's education requirements, including the required qualifying courses and continuing education, are specifically designed to ensure that license holders have the foundational knowledge to use promulgated forms correctly. Trec exam study guide resources cover contract law and promulgated form requirements as tested topics on the Texas license exam.

One more issue worth flagging: multiple parties' signatures and initials are required at various points in the TREC 1-4 contract. Texas law requires that all buyers and all sellers sign the contract — not just one of them if there are multiple owners or purchasers. If a property is held by two spouses as community property, both spouses must sign the contract to convey the property. If two partners are buying together, both must sign to create a binding purchase obligation.

Agents who fail to obtain all required signatures on the first attempt often discover the problem at closing when the title company's review flags missing signatures, forcing last-minute corrections under time pressure. Verify who all the legal owners and buyers are before presenting the contract, and make sure every person with a legal interest in the transaction signs.

The Trec real estate forms system also includes several standard addenda that are commonly attached to the 1-4 contract. The Third Party Financing Addendum is attached to virtually all financed transactions. The HOA Addendum is required when the property is subject to a homeowners association — it specifies the HOA document review period and the process for the buyer to obtain and review HOA documents.

The Seller's Temporary Residential Lease and Buyer's Temporary Residential Lease addenda address situations where one party needs to occupy the property before or after closing. Agents should review the property's circumstances and attach all applicable addenda at the time the offer is made, not as an afterthought.

Background: TREC's Role in Texas Real Estate

The Texas Real Estate Commission was established in 1949 to regulate the Texas real estate industry — licensing brokers and sales agents, enforcing professional standards, and protecting consumers in real estate transactions. TREC's authority to promulgate forms comes from the Texas Occupations Code: TREC is empowered to create and require use of standardized contract forms for residential transactions, specifically to protect members of the public who use the services of Texas real estate license holders.

Before TREC promulgated forms, Texas real estate transactions often used forms drafted by individual brokers or attorneys, which varied in quality and fairness. A buyer or seller represented by an agent using a one-sided form had no way to know whether the contract protected them adequately. TREC's promulgated forms solved this problem by creating a single standard transaction framework vetted by legal and industry experts. The 1-4 Family Residential Contract has been revised multiple times over the decades as Texas real estate law has evolved and as transaction practices have changed.

TREC also operates the promulgated form system in partnership with the State Bar of Texas's Real Estate, Probate and Trust Law Section. When major changes to the forms are considered, input from real estate attorneys helps ensure the language aligns with current Texas law and case law. This collaborative process is why the TREC 1-4 contract is considered a legally sound foundation for residential transactions in Texas — it's not a marketing tool, it's a legal document developed by professionals.

The 1-4 contract form is required only for residential transactions handled by licensed real estate agents and brokers. Principals — meaning buyers and sellers who are transacting without the involvement of a license holder — are not required to use TREC forms, though many choose to do so or have an attorney draft a separate agreement.

For license holders, however, use of the promulgated form is mandatory when handling a covered transaction type, and presenting a different contract form to a client is a violation of TREC rules. Trec real estate license holders are expected to know this rule and comply. Trec license renewal courses include promulgated forms training to ensure license holders stay current on any form updates. TREC's trec texas real estate commission website publishes all current form versions and their effective dates — verify you're using the current version before every transaction.

The current 1-4 Family Residential Contract reflects decades of refinement. Early versions of Texas residential contracts were simpler but left more undefined — disputes over what was included in a sale, how earnest money was handled, and who bore the cost of closing items were far more common before standardization. Each major revision to the promulgated form has addressed a category of problems that arose in practice: clarifying property description requirements, tightening the option period mechanics, adding required broker compensation disclosures, and updating financing contingency language as mortgage products evolved.

The evolution of the form also reflects broader changes in Texas real estate market conditions. The option period structure — central to buyer protection in Texas — was formalized in the promulgated form as a response to buyers being locked into contracts without adequate time to conduct due diligence. As the Texas market became more competitive, option period lengths and option fee amounts became market-specific negotiation points.

In high-competition markets like Austin and Dallas during peak years, buyers sometimes waived the option period entirely to make their offers more attractive — a legally permissible but risky strategy that highlights how the contract's protections only work when parties use them. Understanding what protections the TREC 1-4 contract provides — and what it doesn't — is essential for any buyer, seller, or agent working in the Texas residential market.