Mortgage Assumption
Take over the seller's existing mortgage instead of getting a new one.
A buyer takes over the seller's existing mortgage, keeping its original rate and terms, rather than applying for a new loan. It can be attractive when the existing rate is lower than current market rates.
How It Works
The buyer formally assumes the seller's existing mortgage with the lender's consent. The buyer steps into the seller's position on the loan, inheriting the remaining balance, interest rate, amortization, and terms. The buyer may pay the seller for the equity difference between the home value and the assumed mortgage balance. The lender must approve the assuming buyer's credit and income, and most modern mortgages contain a due-on-sale clause that can be triggered unless the assumption is explicitly permitted.
Advantages
- Can preserve a below-market interest rate
- May reduce some origination and closing costs versus a new mortgage
- Predictable terms inherited from the existing loan
- Can make a property more marketable to rate-sensitive buyers
Considerations
- Lender approval of the assuming buyer is required and not guaranteed
- Due-on-sale clauses can block or complicate assumptions
- The buyer inherits the existing amortization schedule, which may be shorter
- Limited to qualifying assumable mortgage types (e.g. some government-backed loans)
Typical Use Cases
- Buying a home when current mortgage rates are higher than the seller's existing rate
- Assuming a low fixed-rate mortgage originated during a low-rate period
- Reducing closing costs by avoiding a brand-new mortgage origination
Ideal For
Buyers seeking to inherit a low existing interest rate on an assumable mortgage, and sellers wanting to offer a competitive financing edge.
Risk Considerations
If the lender does not formally release the seller, the seller may remain liable if the buyer defaults. Assumptions that bypass lender consent can trigger a due-on-sale clause and accelerate the loan. Legal and mortgage advice is essential.
Eligibility Considerations
- The existing mortgage must be assumable (many conventional loans are not)
- The buyer must qualify with the lender under current underwriting standards
- The seller typically remains secondarily liable unless formally released
- Provincial and lender-specific rules vary significantly
Key Terms
Process Overview
- 1
Confirm the existing mortgage is assumable and review its terms
- 2
Determine the equity difference between home value and mortgage balance
- 3
Apply to the lender to assume the mortgage and pass underwriting
- 4
Negotiate the equity payment and purchase contract
- 5
Close the assumption with the lender's formal consent and release terms
Frequently Asked Questions
Can any mortgage be assumed?
No. Only certain mortgages are assumable, and lender approval of the buyer is required. Many conventional loans contain due-on-sale clauses that restrict assumptions.
Is the seller still liable after the assumption?
Unless the lender formally releases the seller, the seller may remain secondarily liable if the buyer defaults. A release of liability should be negotiated.
Trio is a marketplace platform, not a financial institution.
Trio Marketplace is not a financial institution, lender, mortgage brokerage or financial advisor. Trio does not provide, approve, arrange or guarantee financing. Financing products and services are provided by independent third-party providers. Eligibility, rates, fees, terms and approval decisions are determined by the applicable provider.
Providers for This Strategy
Independent providers whose services may relate to this strategy. Contact them directly to explore options.
Maple Ridge Mortgage Co. (Demo)
DEMO DATA — for testing only. Not a real provider. Residential and commercial mortgage brokerage.
Range: 50,000 – 2,000,000 CAD
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