Seller Financing Addendum Texas: What Every Agent Needs to Know About TREC 26-8

The Seller Financing Addendum is a TREC-promulgated addendum, currently form TREC 26-8 (rev. 2022-11-07), used when the seller — rather than a bank or mortgage lender — agrees to finance part or all of the buyer's purchase. It's designed to attach to Texas's standard promulgated contracts and covers deal types including residential sales, farm & ranch, and vacant land, which is why it shows up often in acreage and rural transactions where traditional lending can be harder to secure.

Texas REALTORS® publishes an identical reprint as TXR 1914 (also rev. 2022-11-07). Whichever numbering your MLS or transaction system uses, the content and current version are the same — always confirm you're working from the latest revision rather than an old copy saved on someone's desktop.

At a high level, the addendum sets out the framework for the private note the seller is carrying: the amount being financed, how the promissory note and any deed of trust are documented, and how the arrangement fits alongside the rest of the contract's terms. It does not replace a promissory note or deed of trust — it works together with those separate loan documents, which is a distinction agents need to understand before writing a seller-financed offer.

The Seller Financing Addendum pairs with TREC's core contracts: the One to Four Family Residential Contract (Resale) (TREC 20-19), the Unimproved Property Contract (TREC 9-18), and the Farm and Ranch Contract (TREC 25-17) — the deal types this addendum was built for. It is a different animal from the Third Party Financing Addendum (TREC 40-11), which is used when the buyer is getting a conventional, FHA, VA, or other institutional loan; don't confuse the two, since mixing them up creates contradictory contingencies in the contract.

A few related forms come up frequently in the same deals. If a buyer is taking over an existing mortgage instead of the seller carrying a brand-new note, you're more likely looking at the Loan Assumption Addendum (TREC 41-3), sometimes paired with the Addendum for Release of Liability on Assumed Loan and/or Restoration of Seller's VA Entitlement (TREC 12-3). If the seller's own financing situation is distressed — say, the property is underwater — the Short Sale Addendum (TREC 45-2) may need to be layered in as well. Knowing which addendum answers which question is half the battle in a seller-financed transaction.

Because these deals touch lending, title, and sometimes tax structuring, they tend to move slower and require more coordination between the agent, the closing attorney or title company, and occasionally a lender's counsel who reviews the note terms. Building extra time into your timeline and communicating that to both sides up front avoids a lot of last-minute scrambling.

While every deal's numbers differ, the addendum generally frames the conversation around a handful of recurring topics: the amount and terms of the seller-carried note, how a promissory note and deed of trust (or vendor's lien) will document the loan, and how the addendum's terms interact with the rest of the contract if the buyer's financing falls through. It's also common for these transactions to require additional loan documents prepared outside the addendum itself — which is exactly why an attorney or qualified loan-document service is usually part of the closing process.

Agents are not in a position to draft promissory notes, structure interest terms, or advise on the tax treatment of installment sales — and shouldn't try to. Direct clients to a real estate attorney, tax professional, or qualified lender for anything beyond filling in the addendum's contract terms. Your job is to make sure the right form is attached, filled out completely and consistently with the rest of the contract, and routed for signature and broker review before it goes to closing.

Because seller financing carries more legal and financial complexity than a standard financed purchase, transaction review by your sponsoring broker matters more here, not less. A broker who actually reads these files — rather than rubber-stamping them — is one of the more underrated protections an agent can have in this kind of deal.

RaiderX is a Texas broker-sponsorship platform: licensed agents keep 100% of their commission as an Individual partner for a flat $99/month, instead of giving up a percentage split to the brokerage. Team and entity-sponsored agents pay $119/month (team) or work under an LLC/PMC sponsorship, with the split set by their team leader or entity owner — but there are no commission splits paid to RaiderX itself, no desk fees, no transaction fees, and no franchise fees on any plan.

Inside the RaiderX platform, EZDocs (beta) lets you fill the Seller Financing Addendum — and every current TREC form, plus a growing library of TXR forms — from a guided, instant-fill form, then send it out for e-signature with no per-signature fee. The signed copy gets filed into the deal automatically, so a form like TREC 26-8 doesn't end up buried in an email thread when your broker needs to review the file.

That broker review is included as part of dedicated broker support on every RaiderX plan — the person checking your seller-financing file for completeness is reachable, not a ticket queue. Combine that with RaiderX's modern CRM, lead management, and AI-powered productivity tools, and agents get a full toolkit for handling more complex transaction types like seller financing without paying a commission split for the privilege.

Applying is free and starts at /apply: you complete a short questionnaire and, for most applicants, a brief intro call with an Account Executive or the broker (agents added under an existing team, LLC, or PMC skip that review step). Broker approval typically takes 3-5 business days. From there you e-sign the Independent Contractor Agreement (and a W-9), pay your first month's dues, and RaiderX handles moving your TREC sponsorship — most agents are fully onboarded in about a week.

If you're comparing sponsorship models before you commit, /compare lays out how RaiderX's flat-fee structure stacks up against traditional split brokerages, and /pricing has the full breakdown for Individual, Team, LLC, and Property Management Company sponsorship. You can also browse the broader form library at /resources/forms, or reach out directly at hello@raiderx.net or +1-618-724-3379.