The One-Sentence Definition
A subject-to sale is a real estate transaction in which the buyer takes title to a property **subject to** the existing financing — meaning the seller’s mortgage stays in place after closing, and the buyer continues making the monthly payments on that loan.
That’s it. The deed transfers. The mortgage doesn’t. The buyer becomes the legal owner but is not on the loan.
How a Subject-To Closing Actually Works
Step 1 — Title work. A licensed Texas title company (the same kind that closes a cash sale) pulls title, issues a title commitment, and clears any judgment liens, HOA dues, or back taxes.
Step 2 — Authorization. The seller signs a written authorization allowing the buyer (and the buyer’s loan servicer) to communicate with the existing lender about the loan. The buyer gets the exact payoff, current escrow balance, and next-payment date.
Step 3 — Deed transfer. At closing, the seller signs a standard Texas warranty deed conveying the property to the buyer. The buyer signs a performance mortgage or trust deed back to the seller as security — if the buyer ever stops paying, the seller can foreclose and take the property back.
Step 4 — Servicing setup. The buyer routes future payments through a third-party loan servicer (commonly Weststar, Note Servicing Center, or similar). Each month the servicer pulls the buyer’s payment, sends it to the seller’s lender, and posts a statement both parties can see online.
Step 5 — Recording. The deed records at the county clerk. The original mortgage stays in the seller’s name on the lender’s books — but property ownership has legally transferred.
What Does NOT Happen at Closing
The seller’s mortgage is **not paid off**. It continues to exist, with the same balance, the same interest rate, the same monthly payment, and the same lender.
The buyer does **not apply for a new loan**. There’s no underwriting, no appraisal contingency, no DTI calculation. That’s why subject-to closes in days instead of weeks.
The lender is **not asked for permission**. The original loan documents almost always include a due-on-sale clause that technically gives the lender the right to call the loan when title transfers — but in practice they rarely do, as long as payments stay current.
Why Sellers Use It
The single most common scenario: a seller owes nearly what the home is worth, can’t afford to bring money to a traditional closing (after agent commissions, repairs, and closing costs), and needs out fast. A cash investor offering 70% of ARV would mean writing a check to close. Subject-to lets the seller transfer the property at full payoff without bringing money.
Other common scenarios: behind on payments and racing the Texas foreclosure timeline, inherited a property with an existing mortgage you don’t want to qualify for, divorce situations where neither spouse can refinance solo, or a relocation that won’t wait for a 60-day conventional close.
Why Buyers Use It
Investors use subject-to to acquire rental properties with the seller’s low-rate mortgage already in place. A 3.2% mortgage from 2021 is enormously more valuable in a 7% rate environment than any new loan. The buyer essentially inherits that rate.
It also conserves cash and credit. No down payment requirement (beyond closing costs), no new loan on the buyer’s credit report, and no DTI hit limiting future purchases.