How do you calculate LTV?

Divide the loan amount by the property value, then multiply by 100. A $300,000 loan on a $400,000 property is a 75 percent LTV. Lenders use the lower of purchase price or appraised value as the denominator.

What is the difference between LTV and down payment?

They are two sides of the same deal. On a purchase, LTV plus your down-payment percentage equals 100 percent. A 25 percent down payment is a 75 percent LTV loan. LTV is the lender's view; down payment is the buyer's.

Does a lower LTV get a better interest rate?

Usually yes. A lower LTV means the lender has more equity cushion ahead of the loan, so the loan is less risky and often priced better. Pushing to maximum LTV frequently costs a higher rate, tighter terms, or both.

What Is a Good LTV for a Rental Property?

Ask a lender how much they will lend on a rental and you are really asking about LTV. It is the ratio that sets your down payment, shapes your rate, and quietly caps how aggressively you can grow. Understanding it lets you walk into financing knowing the answer before the lender gives it.

What LTV measures

LTV, or loan-to-value, is the share of a property's value financed by debt:

LTV = Loan Amount ÷ Property Value

A $300,000 loan on a $400,000 property is a 75% LTV. The remaining 25% is your equity. Lenders use the lower of purchase price or appraised value as the denominator, so a low appraisal can quietly raise your effective LTV and force more cash to the table at closing.

LTV and down payment are mirror images on a purchase: a 75% LTV loan is a 25% down payment. Lenders think in LTV because it tells them how much cushion sits ahead of their money if they ever have to foreclose and sell.

What counts as a "good" LTV on a rental

Rental and investment loans carry stricter limits than owner-occupied mortgages, because lenders see them as higher risk. The rough map:

80% LTV — often the ceiling for a single-family investment property. Expect a rate premium near the top.
75% LTV — the comfortable, common target for investment financing.
70% LTV and below — strong. Better pricing, easier approval, and room to absorb a soft appraisal.
65% LTV or lower — typical for commercial and DSCR loans, where coverage matters as much as value.

"Good" depends on your goal. If you are optimizing for safety and financeability, lower is better. If you are optimizing for return on a limited pool of cash, you may deliberately run higher LTV — as long as the property can carry it.

The trade-off: leverage cuts both ways

Higher LTV means less cash in the deal, which can lift your cash-on-cash return when the property yields more than the loan costs. It also means a larger payment, which pressures your DSCR — the income-to-debt ratio lenders check first.

A quick illustration on a $400,000 property earning $24,000 in NOI:

75% LTV ($300,000 loan), ~$19,200/yr debt service: DSCR = $24,000 ÷ $19,200 = 1.25. Comfortable.
80% LTV ($320,000 loan), ~$20,500/yr debt service: DSCR = $24,000 ÷ $20,500 = 1.17. Tighter, and possibly below a lender's minimum.

The extra 5% of leverage frees $20,000 of cash but eats into your coverage cushion. Push LTV high enough and a single vacancy can drop you below 1.0, where the property no longer covers its own loan. That is the real cost of maximum leverage — not the rate, but the loss of margin when a year goes wrong.

How LTV shifts over time

LTV is not static. As you pay down principal and the property appreciates, your equity grows and LTV falls — which is what creates room to refinance and pull capital out, or to qualify for better terms. Watching LTV across a portfolio tells you which assets have trapped equity worth recycling and which are stretched thin.

That moving picture — per-loan LTV, DSCR, and refinance timing across every property at once — is what Portfoliq's debt optimizer keeps in view, so you see borrowing room open up instead of discovering it a year late.

The takeaway

LTV is the debt share of a property's value: loan divided by value. Aim for 75% or lower on a rental for the cleanest financing, treat 80% as a stretch that costs you coverage, and remember that every point of extra leverage trades cushion for return. Know your LTV before you apply, and you will negotiate financing from the lender's side of the table.