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Math of Money

Loan-to-value ratio (LTV)

Also called: LTV

Your loan balance divided by the home's value. It sets whether you pay mortgage insurance and affects your rate and refinancing options.

A $360,000 loan on a $400,000 home is 90% LTV. Conventional loans generally require private mortgage insurance above 80% LTV, and lenders often offer better rates at 80% or below.

LTV falls as you pay down principal and as the home's value rises. For PMI removal, federal rules use the home's original value, while lenders set their own rules for using a new appraisal.

Calculators that use this

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Disclaimer: Definitions are general education, not financial, tax, or legal advice. Figures are for the 2026 tax year unless noted.