What it is
Loan-to-value expresses how much of a property is financed rather than owned. It is the single most direct measure of a lender’s downside, because the equity beneath the loan is the cushion that absorbs a decline in value before the lender is exposed. That is why LTV drives so much of what a borrower experiences: approval, interest rate, whether mortgage insurance is required, and how much cash a refinance can release. On investment property, where the borrower does not live in the asset, lenders hold the ratio tighter than they do on primary residences.
How it is calculated
Divide the loan by the property’s value — the appraised value on a refinance, and generally the lower of price or appraisal on a purchase. A $160,000 loan on a $200,000 property is 80% LTV. Turned around, the formula sizes the loan: a lender capping investment purchases at 75% will lend $150,000 on that same property, which means $50,000 down before closing costs. When more than one lien is involved, lenders look at combined loan-to-value across all of them rather than at the first mortgage alone.
LTV = loan amount ÷ property value × 100. A $160,000 loan against a $200,000 value is 80%. Rearranged, maximum loan = value × the lender’s LTV cap.
How investors actually use it
As the constraint that determines how much cash a deal consumes and how much it returns. On purchases, the cap sets the down payment and therefore the denominator of cash-on-cash return. On refinances it sets the ceiling on proceeds, which is the mechanism the entire BRRRR strategy depends on — cash-out limits of roughly 70–75% on investment property are usually what decides whether capital comes back out of a deal. Investors also manage LTV deliberately downward, since a lower ratio buys a better rate and more room to survive a soft appraisal.
The common mistake
Underwriting to your own estimate of value rather than to an appraisal. LTV is calculated against the lender’s number, and a property you value at $220,000 that appraises at $200,000 quietly reduces a 75% loan by $15,000 — cash you must supply at closing. The other error is confusing purchase and cash-out caps: they are different programs with different limits, and a plan that assumes purchase-level leverage on a cash-out refinance will come up short exactly when the capital is needed.
Put it to work
Related terms
- DSCR (debt service coverage ratio) — A property's rental income divided by its full mortgage payment including taxes, insurance, and HOA.
- Cash-out refinance — Replacing an existing mortgage with a larger new loan and taking the difference in cash, tapping built-up equity without selling.
- HELOC (home equity line of credit) — A revolving credit line secured by the equity in a property you already own, drawn and repaid like a credit card.
- DTI (debt-to-income) — Your total monthly debt payments divided by gross monthly income — the core qualifier for conventional loans.