Understanding PMI: What It Costs and How to Remove It

Private mortgage insurance is one of the most misunderstood costs in home buying — not because the math is complicated, but because it’s easy to assume it’s either a permanent fee or something that vanishes automatically. Neither is quite right.

Why PMI exists

A smaller down payment means a larger loan relative to the home’s value, and more risk to the lender if the borrower defaults. PMI transfers some of that risk to an insurance policy — but the borrower pays the premium, typically as a monthly charge on top of the regular payment.

What PMI actually costs

Down payment	Loan-to-value	PMI required?
20% or more	80% or less	No
12.5%	87.5%	Yes — typically 0.3–1.5% of loan/year
5%	95%	Yes, usually at a higher rate

The PMI Calculator computes your exact monthly cost from your specific home price, down payment and PMI rate, plus an LTV meter showing exactly where you sit relative to the 80% threshold.

PMI is removable — but not always automatic

Once your loan balance drops to 80% of the home’s original value — through regular payments, extra principal payments, or home appreciation — PMI can typically be removed. Many lenders require an explicit request, sometimes with a new appraisal, rather than dropping it automatically the moment the threshold is crossed.

Getting there sooner

Since PMI removal is tied purely to loan-to-value, anything that reduces your balance faster — or increases your home’s appraised value — gets you there sooner. Extra principal payments are the most direct lever within your control: the Extra Mortgage Payment Calculator shows exactly how many months sooner a given extra payment reaches any target balance. And once PMI is gone and real equity has built up, the Home Equity Calculator shows how much of that equity becomes borrowable if you ever need it.

Full monthly cost, PMI included

PMI is one piece of a larger monthly picture — principal, interest, taxes, insurance and PMI together make up PITI, the real number to budget against rather than a bare interest-rate quote. The Mortgage Payment Calculator combines all of it, automatically applying PMI only when your down payment actually requires it.