Boneyard Tools

LTV and PMI: how your ratio drives mortgage insurance

Why lenders watch loan-to-value, how an 80 percent LTV threshold triggers or ends PMI, and practical ways to lower your ratio.

Open the Loan-to-Value Calculator →

The 80 percent line and why it exists

The 80 percent LTV mark is the single most important number in conventional lending. At or below it, most lenders treat the loan as low risk and do not require private mortgage insurance. Above it, the lender's exposure in a default grows because your equity cushion is thin, so they add PMI to cover the gap. That is why a 60,000 down payment on a 300,000 home, an exact 20 percent deposit, is the classic target for buyers who want to avoid the extra premium.

How PMI is priced against your ratio

PMI is quoted as an annual percentage of the loan balance, and the rate rises with your LTV. A borrower at 95 percent LTV pays noticeably more than one at 85 percent, because a smaller deposit means a larger potential loss for the insurer. Your credit score also feeds the price, but LTV is the primary lever. Running different loan and value figures through this calculator shows exactly how much deposit it takes to cross a pricing band.

Reaching the point where PMI can be cancelled

PMI is not permanent on most conventional loans. Under the Homeowners Protection Act, you can request cancellation once the balance reaches 80 percent of the original value, and the servicer must drop it automatically at 78 percent. Paying down principal, or a rise in the home's value confirmed by an appraisal, both lower the ratio. Use the Property value tab to check what balance corresponds to the LTV you are chasing.

Ways to push your LTV down

The most direct route is a larger down payment, which cuts the loan and the ratio in one move. Buying below your budget, so the value is higher relative to a modest loan, has the same effect. Some buyers use a piggyback second loan to keep the first mortgage at 80 percent, though that trades PMI for a second monthly payment. Whatever the strategy, model the loan and value here first so you know the ratio before you talk to a lender.

Frequently asked questions

At what LTV does PMI usually stop?

On a conventional loan you can request cancellation at 80 percent of the original value, and the servicer must remove it automatically at 78 percent, assuming payments are current.

Does a lower LTV always mean a lower rate?

Generally yes, because more equity lowers the lender's risk, but rate also depends on your credit, the loan type, and market conditions, so the discount for extra equity varies.

Is FHA mortgage insurance the same as PMI?

No. FHA loans carry a separate mortgage insurance premium with its own rules, and it often lasts the life of the loan, unlike conventional PMI that can be cancelled near 80 percent LTV.