Listings and ads around San Diego use the same words for two very different deals: “assume the loan,” “take over the payments,” “keep the seller’s rate.” One is an approved assumption, where the lender accepts you in writing as responsible for the loan. The other is a purchase “subject to” the existing mortgage, where the seller stays the borrower. They are not the same purchase.
An approved assumption: the lender says yes
In an approved assumption, you apply with the servicer, it reviews your credit and income, and the lender accepts you in writing as responsible for the loan. Title transfers to you at closing, and the loan becomes your obligation.
Whether the seller is released is a separate question. Federal lending rules treat it as an assumption when a lender accepts a new borrower, even if the original borrower stays obligated. That leaves the seller responsible if the loan later goes unpaid, so sellers want a written release of their own.
On most FHA assumptions, the lender reviews the buyer’s credit, and the qualified buyer’s approval and the seller’s release are documented on HUD form 92210.1. On a VA loan, the holder approves a buyer who qualifies and agrees by contract to take over the loan, once the loan is current (38 U.S.C. § 3714). That law’s release covers liability to VA, and VA’s release application notes it doesn’t affect liability to a private lender, so get the lender’s written release too. Our FHA and VA assumption guide walks through the process.
“Subject to”: the deed changes, the loan doesn’t
In a subject-to purchase, the seller deeds the home to you subject to the existing mortgage. The seller stays obligated on the loan, and you make the payments under a private agreement with the seller. Making the payments or holding the deed doesn’t make you the lender’s borrower.
That causes everyday problems. You may not be able to see the loan account, the insurance and escrow are set up around the seller, and every late payment you make lands on the seller’s credit.
The due-on-sale clause
Where a mortgage has a due-on-sale clause, and most do, the lender has the option to demand the full balance if the home is sold or transferred without its prior written consent. Federal law lets lenders enforce that (12 U.S.C. § 1701j-3), with exceptions for things like a transfer to a relative after the borrower dies, a spouse or child becoming an owner, a divorce or a living trust. A sale to an unrelated buyer isn’t one of them. For VA loans, the statute also lets the holder demand full payment after certain transfers made without notice or approval.
A lender may never act on it, and nobody can promise you either way. If it does, the loan has to be paid off, usually by refinancing at whatever rates are available then, or the home is at risk.
How the wording hides the difference
“Take over payments,” “assumable rate,” “creative terms” and “no bank qualifying” can all describe a subject-to deal. Some listings mean an approved assumption and just say it loosely. Two questions to the listing agent sort it out: Will the lender accept the buyer in writing as responsible for the loan? And, separately, will the seller get a written release?
- If the lender will accept the buyer, ask who is starting the assumption application with the servicer, and what its fee and timeline are.
- If the lender accepts the buyer but won’t release the seller, it is still an assumption, and the seller stays on the hook.
- If the buyer would take the deed and make the payments without the lender accepting them as the borrower, it is a subject-to purchase, whatever the listing calls it.
Put the approval in the contract
If you are buying with an assumption, make it a condition of the purchase: the lender accepts you in writing as responsible for the loan, the loan you take over matches the balance, rate and term you were shown, and the seller receives a written release. Allow enough time for approval, and decide in advance what happens if it doesn’t come. Our assumable offer checklist covers the rest of the terms.
If a seller or investor proposes a subject-to structure anyway, both sides should have a real estate attorney review it before anyone signs. Calling it something else in the paperwork doesn’t change who owes the loan.
Questions about assumptions and subject-to sales
Is buying subject to a mortgage the same as assuming it?
No. In an approved assumption, the lender accepts you in writing as responsible for the loan. In a subject-to purchase, you take the deed subject to the existing mortgage, the seller stays obligated, and you pay under a private agreement with the seller. A seller release is a separate question, even in an assumption.
Can the lender call the loan due after a subject-to sale?
It can, if the mortgage has a due-on-sale clause, and most do. The clause gives the lender the option to demand the full balance when the home is transferred without its prior written consent, and a sale to an unrelated buyer isn’t one of the federal exceptions. The lender may never act, but it can.
Does the seller stay responsible for the loan?
In a subject-to sale, yes: the debt and any late payments stay on the seller’s record. In an approved assumption, the seller stays responsible too unless the lender releases them in writing, so the release should be a condition of the sale. On a VA loan, get the lender’s release as well as VA’s.
How can I tell which one a listing means?
Ask two questions: Will the lender accept the buyer in writing as responsible for the loan? And will the seller get a separate written release? If the lender won’t accept the buyer, and the buyer would just take the deed and make the payments, it is a subject-to purchase.