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GuidesHomeTurf Team·August 11, 2026·9 min read

Loan-to-Value (LTV) Explained: The Thresholds That Change Your Mortgage

Loan-to-value, almost always written as LTV, is the single number that explains more about a mortgage offer than any other except the rate itself. It decides whether you pay mortgage insurance, which loan programs you qualify for, and how a lender prices the risk of lending to you. It is also easy to calculate, and the thresholds that matter are few enough to memorize.

What LTV actually measures

LTV is the loan amount divided by the value of the property, expressed as a percentage.

How loan-to-value is calculatedThe property value is split into the down payment portion and the loan portion. LTV is the loan portion divided by the total value. A larger down payment produces a lower LTV.LTV = loan amount divided by property valueDown paymentLoan amountProperty value (the lesser of purchase price or appraised value)The bigger the shaded down payment block, the smaller the loan block, and the lower the LTV.Proportions shown are illustrative only.
LTV is a ratio, not a dollar figure. Diagram is illustrative and does not represent any particular loan.

Two details trip people up.

First, on a purchase the value used is normally the lesser of the purchase price or the appraised value. If you agree a price and the appraisal comes in below it, the lender sizes the loan against the lower figure. That is why a low appraisal can force a larger down payment even though nothing about your finances changed.

Second, LTV and down payment are two views of the same thing. Twenty percent down is eighty percent LTV. Ten percent down is ninety percent LTV. They always add to one hundred.

The thresholds that actually change something

LTV does not move smoothly in its effects. It steps. A few specific levels are where the rules change.

Loan-to-value thresholds and what changes at eachAt one hundred percent LTV, VA and USDA programs allow no down payment for eligible borrowers. At ninety six and a half percent, FHA's standard maximum applies. Above eighty percent, conventional loans generally require private mortgage insurance. At eighty percent a borrower may request PMI cancellation. At seventy eight percent PMI generally terminates automatically.100%no money downVA and USDA allow zero down for eligibleborrowers. Each has its own upfront fee.96.5%3.5% downFHA's standard maximum LTV, for borrowersmeeting the higher credit score tier.Above 80%under 20% downConventional loans generally require privatemortgage insurance in this band.80%the PMI lineYou may request PMI cancellation once theloan reaches 80% of original value.78%automaticPMI generally terminates automatically, ifpayments are current. Conditions apply.
Thresholds under the Homeowners Protection Act and standard agency and FHA guidelines. Program rules and eligibility vary. Sources: Consumer Financial Protection Bureau, HUD, VA and USDA Rural Development.

The eighty percent line is the one most people are chasing, because it is where conventional private mortgage insurance generally stops being required. It is worth being precise about what happens there, and it is not automatic.

Mortgage insurance is not one thing

A frequent and expensive confusion is treating all mortgage insurance as interchangeable. It is not, and the differences are structural.

Private mortgage insurance on a conventional loan is generally required above eighty percent LTV, and it is cancellable. Under the Homeowners Protection Act, for a single-family principal residence, you can request cancellation once the balance reaches eighty percent of the original value, and the servicer must terminate it automatically at seventy eight percent, provided you are current on payments. There are further conditions, and a final termination point at the midpoint of the amortization schedule if it has not ended sooner.

FHA mortgage insurance premium works differently. It is not PMI and it does not follow the HPA cancellation rules. FHA charges an upfront premium plus an annual premium, and how long the annual premium lasts depends on the LTV at origination. For most FHA loans since June 2013, an LTV above ninety percent carries the annual premium for the life of the loan, while an LTV at or below ninety percent carries it for eleven years. That single detail is why the FHA versus conventional choice cannot be made on rate alone.

VA loans have no monthly mortgage insurance at all. Instead there is a one time funding fee, which varies and which some borrowers, including many with a service-connected disability, are exempt from paying.

USDA loans in eligible areas carry both an upfront guarantee fee and an annual fee.

The practical takeaway: comparing two offers at different LTVs, or across programs, means comparing the insurance structure and how long it lasts, not just the rate.

LTV moves after closing, in two directions

Your LTV on day one is not fixed. Two forces change it.

Paying down principal lowers the loan side of the ratio. This is predictable and follows your amortization schedule, which is exactly what the HPA cancellation rules are keyed to. Note that those rules use your original value, not today's value, so simply waiting for the market to rise does not trigger automatic termination.

Property value changes move the other side. If values rise, your LTV based on current value falls. Some servicers will consider cancelling PMI based on a new appraisal that you pay for, but that is a separate request from the automatic HPA process and is not guaranteed. If values fall, LTV rises, which can affect your options if you later want to refinance.

What this means when you compare offers

LTV is the reason two lenders can quote genuinely different rates for the same borrower and both be reasonable. It is a risk input. Small differences in your down payment can also push you across a threshold, which changes the pricing tier rather than nudging it.

That is worth knowing before you commit to a down payment figure. Moving from just under a threshold to just over it sometimes changes more than the extra cash would suggest, because you have crossed a line rather than moved along a slope.

When you post a pre-approval auction on HomeTurf, you state your target price range and how much you plan to put down, and lenders see the resulting LTV band alongside your credit band. They are quoting against the same picture, which is what makes the offers comparable.

Frequently asked questions

What is a good LTV for a mortgage?

Eighty percent or below is the level most often cited, because that is where conventional private mortgage insurance generally stops being required. Lower is not always better in practice, since it means committing more cash upfront. Many borrowers use higher LTV programs deliberately in order to keep savings available.

How do I calculate LTV?

Divide the loan amount by the property value and multiply by one hundred. On a purchase, use the lesser of the purchase price or the appraised value. A loan for ninety percent of the value is ninety percent LTV, which corresponds to ten percent down.

Does LTV affect my interest rate?

It can. Lenders treat LTV as a measure of risk, so it is one of the inputs used in pricing alongside credit profile, loan type and property type. Because pricing tends to be tiered rather than continuous, crossing a threshold can matter more than a small move within a band.

At what LTV does PMI stop on a conventional loan?

Under the Homeowners Protection Act, for a single-family principal residence you may request cancellation at eighty percent of the original value, and the servicer must terminate it automatically at seventy eight percent if you are current on payments. Additional conditions apply, and the rules use the original value rather than the current market value.

Is FHA mortgage insurance the same as PMI?

No. FHA charges its own mortgage insurance premium, which does not follow the HPA cancellation rules that apply to conventional PMI. For most FHA loans since June 2013, the annual premium lasts the life of the loan when the original LTV is above ninety percent, and eleven years when it is at or below ninety percent.

Can I get a mortgage at 100 percent LTV?

For eligible borrowers, yes. VA loans for qualifying service members and veterans, and USDA loans in eligible rural areas, both allow financing with no down payment. Each carries its own fee structure in place of monthly private mortgage insurance, so the total cost still needs comparing.

Does a low appraisal change my LTV?

Yes, on a purchase. Because lenders use the lesser of the purchase price or the appraised value, an appraisal below the agreed price raises your LTV unless you increase your down payment or renegotiate the price.

See how your LTV is priced

LTV is one of the few inputs you still have some control over right up until you commit, and it is worth understanding before you decide how much to put down.

On HomeTurf, verified lenders compete for your loan in one place and cannot pay for placement, so you can see how different lenders price the same LTV rather than gathering quotes one at a time. You stay anonymous until you choose a winner, and the final call is always yours.

When you are ready to see competing offers against your own numbers, you can Start Your Auction. HomeTurf is a technology marketplace, not a lender, it is free for borrowers, and it is now in beta.

Remember that this is general information, not financial advice, and every situation is different.

Sources

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HomeTurf is a technology marketplace, not a lender or loan originator. This content is for general information only and is not financial or legal advice. Now in beta.