Insured eligibility is narrower than 'less than 20% down'
The transaction must also fit current insurer rules for purchase price, owner occupancy, amortization, credit, debt service, property type, and down payment source. The lender submits the file to an insurer; the borrower does not choose a lower rate independently of that approval.
Use an insured rate page for an eligible high-ratio purchase, not for a refinance, equity takeout, or a property that falls outside default-insurance rules.