For an eligible home purchase, mortgage default insurance is generally required when the buyer has a down payment of less than 20% of the purchase price.
This is often referred to as an insured mortgage. A mortgage with a down payment of 20% or more is generally considered conventional and typically does not require mortgage default insurance.
Mortgage default insurance also has eligibility rules. For example, homes priced at $1.5 million or more are not eligible for an insured mortgage, which means a down payment of at least 20% is required.
Having the minimum down payment does not automatically guarantee approval. The borrower, property, lender, and insurer requirements must still be satisfied.