Mortgage insurance is a policy that protects a lender, not the borrower, against financial loss if a borrower defaults on a mortgage. It is typically required when a borrower makes a down payment below a certain threshold, commonly around 20 percent of the property's value, because a smaller down payment leaves the lender more exposed if the loan defaults and the property must be sold for less than is owed.
The insurance can be issued by a private company, in which case it is usually called private mortgage insurance, or in some countries by a government agency as part of a specific loan program, such as an FHA mortgage in the United States. In both cases, the borrower pays the premium, even though the lender is the party being protected.
Mortgage insurance in plain terms
Mortgage insurance works like a safety net the lender insists on before lending to someone with relatively little upfront equity in the property. If the loan goes bad and the lender loses money after the property is sold, the insurer steps in to cover part of that loss. The borrower pays for this protection, even though it benefits the lender, essentially as the price of being allowed to buy a home with a smaller down payment.
This is distinct from mortgage life insurance, which pays off the loan if the borrower dies, and protects the borrower's family rather than the lender's balance sheet directly, though it also happens to benefit the lender by guaranteeing repayment.
When mortgage insurance is required
Lenders generally require mortgage insurance whenever the loan-to-value ratio of a mortgage exceeds a set threshold, meaning the borrower is financing a large share of the property's value and holding relatively little equity. Once the borrower has paid down enough of the loan, or the property has appreciated enough, to bring the loan-to-value ratio below that threshold, mortgage insurance can often be cancelled.
Cost and cancellation
Mortgage insurance premiums are usually charged as a percentage of the loan amount annually, split into monthly payments added to the mortgage payment, though some programs allow or require an upfront single premium instead. Borrowers who reach sufficient equity can typically request cancellation, and some loan programs automatically terminate the requirement once set equity thresholds are met.
Mortgage insurance and the housing market
Mortgage insurance plays a significant role in widening access to homeownership, since it allows lenders to approve loans for borrowers who could not otherwise afford a large down payment, while still managing the lender's own risk. Without mortgage insurance, many lenders would simply decline to approve loans above a certain loan-to-value ratio, effectively locking out borrowers who do not have a substantial deposit saved, even if they are otherwise creditworthy and capable of making regular payments.
Critics of mortgage insurance sometimes point out that, because the borrower pays for a product that primarily protects the lender, the arrangement can feel asymmetric, which is part of the reasoning behind rules in some jurisdictions requiring automatic cancellation once a borrower reaches sufficient equity, rather than leaving cancellation entirely up to the lender's discretion.
Mortgage insurance claims process
If a borrower defaults and the lender forecloses, mortgage insurance pays out only after the property has actually been sold and the lender has calculated its final loss, meaning the insurer covers the shortfall between what was owed and what the sale actually recovered, up to the policy's coverage limit. This process can take considerable time to resolve, since foreclosure itself is often a lengthy legal process before any property sale and resulting claim settlement can occur.
Because mortgage insurance claims are triggered specifically by the lender's loss rather than the borrower's circumstances, a borrower who defaults gains no direct benefit from the insurance existing, other than that it was what allowed them to obtain the loan with a smaller down payment in the first place.
Borrowers are sometimes offered the choice of paying mortgage insurance as a single upfront premium at closing rather than spreading it across monthly payments, which can lower the ongoing monthly cost of the loan but requires more cash available at the time of purchase, a trade-off worth comparing against the standard monthly structure.