How LTV Is Calculated

The formula is straightforward: LTV = (Loan Amount ÷ Vehicle Value) × 100. If you're borrowing $18,000 to purchase a car appraised at $20,000, your LTV is 90%. If you finance the full $20,000 with no down payment, your LTV is 100%.

The vehicle value used in this calculation matters. Lenders typically rely on third-party valuation guides rather than the sticker price or agreed sale price. That means a vehicle's appraised book value — which reflects market conditions — may differ from what you negotiated at the dealership, and the lender's LTV calculation will reflect the lower of the two figures in many cases.

LTV is part of a broader set of metrics lenders assess. For context on the full picture, see key numbers every car buyer should understand before financing.

100%+

LTV threshold where lender risk increases sharply

When a loan exceeds the vehicle's appraised value, lenders face potential losses in a default scenario even before factoring in depreciation.

~20%

Average first-year depreciation for new vehicles

Industry estimates suggest many new vehicles lose roughly 15–20% of their value within the first year, which can rapidly affect LTV for buyers who make small down payments.

80–90%

LTV range many lenders consider lower-risk

Borrowers in this range are financing less than the vehicle's full value, giving lenders more collateral cushion and often qualifying for more competitive rate tiers.

Why Lenders Use LTV

For a lender, the vehicle serves as collateral — if you stop making payments, they can repossess and sell the car to recover their funds. LTV tells them how exposed they are. If a lender finances 110% of a vehicle's value and the borrower defaults, they can't fully recover the loan balance through a sale. That exposure translates into risk, and lenders price that risk into the terms they offer.

A borrower with a low LTV represents a smaller gap between what's owed and what can be recovered. Lenders generally reward this with more favorable rates and more flexible terms. A high LTV — particularly above 100% — signals that the lender would take a loss in a default scenario even before accounting for depreciation.

LTV doesn't operate in isolation. Lenders weigh it alongside your credit profile and income. How lenders decide whether to approve your auto loan explains how these factors combine in the underwriting process.

“Collateral value is a fundamental pillar of secured lending. When a loan is backed by an asset, the relationship between the loan balance and that asset's recoverable value determines much of the lender's risk exposure from day one.”

— Consumer Financial Protection Bureau, U.S. federal agency overseeing consumer financial products and lending practices

How to Lower Your LTV Before You Apply

Reducing your LTV before applying gives you more leverage — both in approval odds and in the rates you're quoted. Three practical approaches:

  • Make a larger down payment. Every dollar you pay upfront is a dollar you don't borrow, directly reducing the ratio. Even moving from 100% to 85% LTV can make a measurable difference in terms.
  • Use a trade-in strategically. If your current vehicle has positive equity, applying it to your purchase reduces the loan amount. However, rolling negative equity into a new loan does the opposite — it pushes LTV above 100%.
  • Choose a vehicle with strong residual value. Vehicles that hold their value well are appraised more favorably, which can lower LTV even at the same purchase price.

For strategies on down payments and trade-ins, the financing strategies hub covers these decisions in detail.

Check the Book Value Before You Apply

Before submitting a loan application, look up your target vehicle's value using a recognized valuation guide. If the lender's appraisal comes in lower than the purchase price, you may face a higher LTV than anticipated — and could need to increase your down payment to compensate. Knowing this figure in advance lets you plan accordingly.

LTV, Negative Equity, and the Risks of Overborrowing

When your LTV exceeds 100%, you owe more than the car is worth — a position commonly called being "upside down" or having negative equity. This situation becomes particularly problematic if you need to sell or trade the vehicle before the loan is paid down, because you'd owe the difference out of pocket.

Negative equity can also compound over time. Vehicles depreciate, and if your loan balance falls more slowly than the car's value, the gap can widen rather than close — especially on longer loan terms with low monthly payments.

LTV also connects to your overall borrowing capacity. While LTV measures the loan against the asset, your debt-to-income ratio sets a ceiling on how much you can borrow relative to your income. Both metrics work together in a lender's decision.

This article is for general informational and educational purposes only and does not constitute personalized financial or lending advice. Loan terms, approval criteria, and LTV thresholds vary by lender and individual circumstances. Consult a qualified financial professional for guidance specific to your situation.