Loan-to-Value Calculator: LTV Ratio, PMI Thresholds & How to Improve It (2026)
Quick Answer
- *LTV = Loan Amount ÷ Appraised Value × 100. A $240K loan on a $300K home = 80% LTV.
- *At 80% LTV or below (20% down), PMI is not required and you qualify for the best rates.
- *PMI costs $700–$1,800/year on a $300K loan (CFPB data) and must legally cancel at 78% LTV.
- *FHA allows up to 96.5% LTV (3.5% down), but mortgage insurance premium typically lasts the life of the loan.
What Is Loan-to-Value (LTV) Ratio?
Loan-to-value ratio is the percentage of a property's appraised value that you're financing through a mortgage. It tells lenders how much skin the borrower has in the game. A lower LTV means more equity, less risk for the lender, and better loan terms for you.
LTV is calculated at the time of origination using either the purchase price or the appraised value — whichever is lower. As you pay down the loan or your home appreciates, your LTV decreases.
The LTV Formula
LTV = (Loan Amount ÷ Appraised Value) × 100
Three examples:
| Home Value | Down Payment | Loan Amount | LTV |
|---|---|---|---|
| $300,000 | $60,000 (20%) | $240,000 | 80% |
| $400,000 | $40,000 (10%) | $360,000 | 90% |
| $250,000 | $8,750 (3.5%) | $241,250 | 96.5% |
You don't need to do this manually — our loan-to-value calculator handles the math instantly.
Why LTV Matters: Three Things It Controls
1. Whether You Pay PMI
Private Mortgage Insurance protects the lender if you default. It's required on conventional loans when LTV exceeds 80%. According to CFPB data, PMI typically costs 0.5% to 1.5% of the loan amount per year— that's $700 to $1,800 annually on a $300,000 loan, or $58 to $150 per month added to your payment for no direct benefit to you.
2. Your Interest Rate
LTV is one of the primary inputs in Fannie Mae's and Freddie Mac's loan-level price adjustments (LLPAs). Every 5% improvement in LTV typically saves you 0.125% to 0.25% on your rate. On a $350,000 mortgage, the difference between 85% and 90% LTV can cost $35 to $70 more per month — roughly $12,600 to $25,200 over a 30-year term.
3. Loan Approval
Many loan programs have hard LTV ceilings. Conventional conforming loans follow Freddie Mac and Fannie Mae guidelines, which generally cap at 97% LTV for first-time buyers and 95% for others. Jumbo loans often cap at 80% to 85% LTV. Going above these thresholds means the program simply isn't available to you.
LTV Thresholds: What Each Range Means
| LTV Range | Down Payment | PMI Required? | Rate Impact |
|---|---|---|---|
| ≤80% LTV | 20%+ | No | Best rates available |
| 80–90% LTV | 10–20% | Yes (0.5–1.5%/yr) | Moderate rate add-on |
| 90–95% LTV | 5–10% | Yes (higher PMI) | Higher rate add-on |
| 95–97% LTV | 3–5% | Yes | Limited conventional options |
| 96.5% LTV | 3.5% | FHA MIP (lifetime) | FHA program only |
The 80% threshold is the most important line in residential lending. Cross it and you're paying PMI. Stay below it and you're not.
PMI: What It Costs and When It Goes Away
PMI is not permanent — but it won't go away on its own until your balance hits 78% of the original purchase price. The Homeowners Protection Act of 1998 established two triggers:
- Borrower-requested cancellation at 80% LTV: Once your principal balance reaches 80% of the original appraised value, you can request PMI cancellation in writing. Your lender may require a current appraisal to confirm value hasn't declined.
- Automatic cancellation at 78% LTV: Lenders must cancel PMI automatically when your balance drops to 78% of the original purchase price — as long as you're current on payments. No action required on your part.
On a 30-year fixed mortgage at 7%, it takes roughly 11 years of regular payments to hit 80% LTV through amortization alone. Making extra principal payments can get you there much faster.
Combined Loan-to-Value (CLTV)
If you have more than one loan secured by the property, lenders calculate combined loan-to-value (CLTV):
CLTV = (First Mortgage + Second Mortgage + HELOC Balance) ÷ Appraised Value × 100
CLTV matters most when you're:
- Opening a home equity line of credit (HELOC)
- Taking a cash-out refinance
- Using a piggyback loan (80-10-10 structure)
Most lenders cap cash-out refinances and HELOCs at 80% CLTV. Some lenders allow up to 85% or 90% CLTV for HELOCs, but at higher rates. If your first mortgage is already at 75% LTV and you want a HELOC, you typically have room to borrow up to 5% of your home's value before hitting the 80% cap.
FHA vs Conventional: LTV Comparison
| Feature | Conventional | FHA |
|---|---|---|
| Max LTV | 97% (first-time buyers) | 96.5% (580+ credit score) |
| Min down payment | 3% | 3.5% |
| Mortgage insurance | PMI, cancels at 78% LTV | MIP, often lifetime |
| MIP/PMI cost | 0.5–1.5%/year | 0.55–1.05%/year (annual) |
| When insurance ends | 78% LTV (auto) or 80% (request) | 11 years if 10%+ down; lifetime if less |
| Best for | Good credit, lower LTV goals | Lower credit, minimal down payment |
The FHA program is more lenient on LTV and credit score, but the lifetime MIP on low-down-payment loans is a real cost. A borrower who puts 3.5% down on an FHA loan and never refinances will pay MIP for the entire 30-year term. The same borrower on a conventional loan would stop paying PMI once they hit 78% LTV — typically around year 11.
How LTV Affects Your Interest Rate: Real Numbers
Fannie Mae and Freddie Mac publish loan-level price adjustments that lenders translate directly into rate differences. The table below shows approximate rate premiums above the best available tier (based on conforming loan pricing):
| LTV Tier | Approximate Rate Add-On | Extra Monthly Cost on $350K Loan |
|---|---|---|
| ≤60% | Base rate (best) | — |
| 60–70% | +0.00% | $0 |
| 70–75% | +0.125% | ~$26 |
| 75–80% | +0.25% | ~$52 |
| 80–85% | +0.375% | ~$78 |
| 85–90% | +0.50% | ~$104 |
| 90–95% | +0.625% | ~$130 |
These are approximations — actual pricing varies by credit score, loan type, and lender. But the pattern is consistent: every 5% improvement in LTV saves real money, and the savings compound over a 30-year term.
How to Improve Your LTV
Larger Down Payment
The most direct route. Increasing your down payment from 10% to 20% drops LTV from 90% to 80%, eliminating PMI and improving your rate. On a $400,000 home, the difference is $40,000 in upfront cash but potentially $200–$400/month in savings between eliminated PMI and a lower rate.
Dispute the Appraisal
If the appraised value comes in lower than expected, you have the right to challenge it. Provide the appraiser with comparable sales they may have missed. A $10,000 higher appraisal on a $300,000 purchase drops LTV by about 3 percentage points. This is worth doing — appraisals are opinions, not facts, and errors happen.
Property Improvements Before Appraisal
For refinances, strategic improvements before the appraisal can raise the appraised value without raising the loan balance, directly lowering LTV. Kitchen and bathroom updates typically return $0.60–$0.80 per dollar spent in appraisal value. Landscaping and curb appeal improvements can also move the number.
Extra Principal Payments
Making additional principal payments accelerates your path to 80% LTV and PMI cancellation. On a $300,000 30-year loan at 7%, adding $200/month in extra principal gets you to 80% LTV roughly 5 years sooner than the standard schedule.
Wait for Appreciation
If your market is appreciating, your LTV improves automatically even without paying down the loan. Once you believe your home value has risen enough to push LTV below 80%, request a new appraisal and ask your lender to remove PMI. The Federal Reserve reports average U.S. home appreciation of 4.3% annually over the past 30 years, though markets vary widely.
Calculate your loan-to-value ratio
Use our free Loan-to-Value Calculator →Planning a refinance? Try our Mortgage Refinance Calculator
Frequently Asked Questions
What is a good loan-to-value ratio for a mortgage?
An LTV of 80% or below is considered ideal. At 80% LTV, you've made a 20% down payment, which eliminates the PMI requirement and qualifies you for the best available interest rates. LTVs between 80% and 90% are still acceptable to most lenders but will trigger PMI costs. Above 95% LTV, conventional loan options become very limited.
How do I calculate my loan-to-value ratio?
LTV = (Loan Amount ÷ Appraised Value) × 100. For example, if you're borrowing $240,000 to purchase a home appraised at $300,000, your LTV is ($240,000 ÷ $300,000) × 100 = 80%. You can use our free Loan-to-Value Calculator to compute this instantly.
When does PMI automatically cancel?
Under the Homeowners Protection Act of 1998, lenders must automatically cancel PMI when your loan balance reaches 78% of the original purchase price — as long as you're current on payments. You can also request cancellation once you reach 80% LTV by paying down the principal or through a new appraisal showing increased home value.
What is the difference between LTV and CLTV?
LTV measures just your first mortgage against the property value. CLTV (combined loan-to-value) adds all liens — your first mortgage, any second mortgage, and outstanding HELOC balances — then divides by the appraised value. Lenders typically cap cash-out refinances and HELOCs at 80% CLTV.
Does LTV affect my mortgage interest rate?
Yes. Lenders use LTV as a risk indicator and price loans accordingly. Each 5% improvement in LTV typically reduces your interest rate by 0.125% to 0.25%. On a $350,000 loan, dropping from 90% LTV to 85% LTV could save $35 to $70 per month depending on your rate tier. Fannie Mae and Freddie Mac publish loan-level price adjustments (LLPAs) that quantify these differences.
What is the maximum LTV for an FHA loan?
FHA loans allow up to 96.5% LTV — meaning a minimum 3.5% down payment — for borrowers with a credit score of 580 or higher. Borrowers with scores between 500 and 579 are limited to 90% LTV (10% down). Unlike conventional PMI, FHA Mortgage Insurance Premium (MIP) typically lasts the life of the loan if your original down payment was less than 10%.