A conventional loan generally can be assumed only in a narrow set of family and estate situations defined by federal law, not in a normal sale between a buyer and seller. The mortgage contract almost always lets the lender block an assumption when the home is sold on the open market, but the Garn-St. Germain Depository Institutions Act of 1982 strips that power away when ownership changes because of events like a death, a divorce, or a transfer into a living trust.
Why Ordinary Sales Can’t Assume a Conventional Loan
Nearly every conventional mortgage contains a due-on-sale clause. That provision lets the lender demand the entire remaining balance the moment the property is sold or transferred to a new owner.1Office of the Law Revision Counsel. 12 USC 1701j-3 – Preemption of Due-on-Sale Prohibitions Lenders write it in so they can close out older low-rate loans and reissue at current market rates whenever a home changes hands.
Because the lender can call the loan the instant ownership shifts, a market-rate buyer cannot simply step into the seller’s mortgage. The buyer has to apply for a new loan at whatever rate is available. That is why conventional loans are generally described as non-assumable, and why FHA and VA loans are the ones commonly associated with assumptions.
The Federal Exceptions That Force Lenders to Allow Assumption
Garn-St. Germain overrides the due-on-sale clause for specific transfers involving family events and estate planning. The protections cover residential property with fewer than five dwelling units, including cooperative housing and manufactured homes.1Office of the Law Revision Counsel. 12 USC 1701j-3 – Preemption of Due-on-Sale Prohibitions If a transfer qualifies, the lender is legally prohibited from accelerating the loan.
Death of a Borrower or Joint Owner
The lender cannot trigger the clause when title passes because a joint tenant or tenant by the entirety dies. The same protection applies when a borrower dies and the property passes to a relative. The heir can continue paying on the existing loan on its original terms.1Office of the Law Revision Counsel. 12 USC 1701j-3 – Preemption of Due-on-Sale Prohibitions
Divorce, Separation, and Transfers to a Spouse or Child
When a borrower’s spouse or children become an owner, either during the borrower’s lifetime or through a divorce decree or separation agreement, the lender cannot accelerate.1Office of the Law Revision Counsel. 12 USC 1701j-3 – Preemption of Due-on-Sale Prohibitions A spouse keeping the home after a divorce can take over the mortgage without having to refinance into a new loan at today’s rate.
Transfers Into a Living Trust
Moving the property into an inter vivos trust is protected as long as the borrower remains a beneficiary and the transfer does not change who has the right to occupy the home.1Office of the Law Revision Counsel. 12 USC 1701j-3 – Preemption of Due-on-Sale Prohibitions
One boundary worth stating plainly: these protections only reach residential property with fewer than five dwelling units. If the loan is on a five-unit or larger building, Garn-St. Germain will not shield the transfer from the due-on-sale clause.
Covering the Equity Gap
Assuming a loan means taking over the remaining balance, not the full value of the home. On a $400,000 property with a $250,000 mortgage, someone has to account for the $150,000 of equity in between.
In an inheritance, the equity simply passes to the heir together with the mortgage. In a divorce, the spouse keeping the house often owes the departing spouse their share, which may require refinancing, drawing on savings, or trading other marital assets. In a transfer to a spouse or child during the borrower’s lifetime, the equity portion can be treated as a gift for tax purposes. Work out which situation applies to you before starting the paperwork, because the money question drives everything else.
How to Actually Complete the Assumption
Start by contacting the mortgage servicer, which is the company you send payments to and may not be the original lender. Ask for the assumption or transfer-of-ownership department and request their application package. Some servicers have dedicated forms; others route these requests through loss mitigation.
You will need to prove the qualifying event with documents such as a certified death certificate, a divorce decree or separation agreement, the trust agreement showing the borrower as a current beneficiary, or a recorded deed showing title has changed. If no release of liability is requested and the servicer is not evaluating your creditworthiness, this may be most of what you need to submit.
If the servicer is evaluating your finances, which happens when you ask for a release of liability or when the servicer requires credit approval, expect a full underwriting review. Fannie Mae’s standard guidelines cap the debt-to-income ratio at 36% for manually underwritten loans, with room up to 45% when credit score and reserves support it, and up to 50% through its automated system.2Fannie Mae. B3-6-02, Debt-to-Income Ratios Plan to provide two years of tax returns, recent pay stubs, and authorization for a credit pull.
Keep making the scheduled payments throughout the review. A missed payment can push the loan into default no matter where your application sits in the queue. Once the transfer is approved, you’ll sign a notarized assumption agreement that makes you personally responsible for the remaining principal, interest, and escrow. You will also need a new homeowner’s insurance policy in your name, because the previous owner’s policy does not transfer.
Fees to Expect
Fannie Mae’s servicing guidelines set the fees the servicer can charge. A transfer that does not require credit review costs $100. A transfer that involves credit approval of the new borrower or a release of liability costs the greater of $400 or 1% of the remaining balance, capped at $900. The servicer can also pass through its actual cost for items like the credit report.3Fannie Mae. Fees for Certain Servicing Activities
County recording fees for the new deed or assumption agreement are separate and vary by jurisdiction. Some localities also charge transfer taxes, though many exempt transfers between family members or transfers at death. A local title company or real estate attorney can give you a specific estimate.
Getting the Original Borrower Released
An assumption adds the new borrower to the loan but does not automatically remove the old one. Without a formal release of liability, the original signer stays legally responsible. If the new owner later misses payments, the original borrower’s credit takes the damage and the lender can pursue them for the shortfall.
To grant a release, the servicer has to find the new borrower financially capable. If the loan carries private mortgage insurance, the mortgage insurer must also agree. When the insurer refuses, the servicer must deny the release even if the new borrower qualifies on every other measure.4Fannie Mae. Reviewing a Transfer of Ownership for Credit and Financial Capacity In that case, the assumption itself can still move forward under Garn-St. Germain, but the original borrower stays on the loan.
If you are the original borrower, press for the release as part of the process. Until it’s granted or the loan is paid off, the mortgage keeps showing on your credit report and counts against your debt-to-income ratio on any future loan application.
Tax Consequences
The IRS treats the assumed loan balance as part of the amount realized by the person giving up the property. If that amount, plus any cash or other consideration, exceeds your adjusted basis in the home, you have a capital gain.5Internal Revenue Service. Property (Basis, Sale of Home, Etc.) 3 This rule reaches family transfers where no money changes hands, because the mortgage balance itself counts as consideration.
If the home was your primary residence, you can generally exclude up to $250,000 of gain, or $500,000 on a joint return, so long as you owned and lived in it for at least two of the last five years.6eCFR. 26 CFR 1.121-1 – Exclusion of Gain From Sale or Exchange of a Principal Residence
Lifetime transfers to a spouse or child can also carry gift tax implications. For 2026, the annual gift tax exclusion is $19,000 per recipient, and the lifetime exemption is $15,000,000.7Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 Equity transferred above the annual exclusion requires a gift tax return, though no tax is actually due until the lifetime exemption is used up. For inherited property, the heir typically receives a stepped-up basis equal to the home’s fair market value on the date of death, which can wipe out most of the capital gain when the home is eventually sold. A tax professional can walk through the numbers before you sign anything.
If the Servicer Wrongly Denies You
If your transfer fits one of the Garn-St. Germain categories, the lender is legally prohibited from enforcing the due-on-sale clause. A denial in that situation may be a servicer mistake rather than a lawful decision. Ask for the denial in writing and compare the stated reason against the specific statutory exceptions.
If the servicer still refuses to honor a protected transfer, you can file a complaint with the Consumer Financial Protection Bureau online or by calling (855) 411-2372.8Consumer Financial Protection Bureau. Submit a Complaint The CFPB forwards complaints to the servicer and requires a response. Talking with a real estate attorney is worth the cost at that point, especially if the servicer has already started accelerating the loan. Because Garn-St. Germain is federal law, a wrongful acceleration can expose the servicer to liability.