Private mortgage insurance

Also called PMI

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Definition

Private mortgage insurance (PMI) is insurance on a conventional mortgage that protects the lender if the borrower does not pay. It is a conventional-loan product feature. It is not FHA mortgage insurance, and it does not protect the homeowner’s equity.

In plain English

When a conventional loan is made with a relatively small down payment, the lender’s cushion against the property value is thinner. PMI is the private insurance many lenders then require. The borrower typically pays for it; the coverage runs to the lender. Consumer materials often mention a down payment under 20% of property value as the setting where PMI may or commonly appear. That is a familiar household rule of thumb, not a statement that the law always requires PMI at that line, and not a statement that PMI never appears in any other structure. FHA loans use a different federal insurance program. Freddie Mac’s Guide heading “MI” names a mortgage insurer as a counterparty. That heading is not PMI evidence and is not cited here.

Technical definition

CFPB also discusses mortgage insurance more broadly, including government programs. This canary stays on private mortgage insurance for conventional loans.

Why it matters

PMI changes the monthly cost of many conventional loans and is a standard contrast with FHA insurance. Mixing the two programs produces false product comparisons.

Example

A hypothetical conventional purchase with a modest down payment includes a PMI line on the Loan Estimate. The same borrower looking at an FHA option would be looking at a different insurance program, not “PMI by another name.”

Commonly confused with

Sources reviewed

Last source/content review

September 4, 2026

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