Most homeowners are familiar with loan-to-value ratio. It shows up early in the mortgage process, and the concept is straightforward: how much you’re borrowing relative to what the home is worth. Combined loan-to-value ratio (CLTV) follows the same logic, but with one meaningful difference: it accounts for every loan secured by the property, not just one.
That distinction matters especially when you’re exploring a home equity loan or home equity line of credit (HELOC). In those situations, a lender isn’t looking at your first mortgage in isolation. They’re looking at the full debt picture tied to your home. CLTV is how they measure it.
In this article, we’ll explain how CLTV works and why it matters.
What Is CLTV?
Combined loan-to-value ratio (CLTV) is the total of all outstanding loan balances secured by a property, divided by that property’s current appraised value, expressed as a percentage. Where LTV looks at a single loan, CLTV adds them all together: first mortgage, home equity loan, HELOC, any other lien on the property.
The result tells a lender how much of the home’s value is already claimed by debt and, by extension, how much equity remains available.
CLTV vs. LTV: Where the Difference Shows Up
If you have a single mortgage and no other loans on the property, your LTV and CLTV are the same number. The gap opens when a second loan enters the picture.
Say your primary mortgage balance is $210,000 and you take out a home equity loan for $35,000. A lender evaluating that second loan will calculate CLTV using both balances, which is $245,000 total, not just the $35,000 being requested. That’s the number they’ll compare against your home’s appraised value.
This is also why CLTV is the more relevant ratio when applying for home equity products. It reflects the actual risk exposure a lender takes on when they place another lien behind your existing mortgage.
How to Calculate Your CLTV
The formula is:
CLTV = Total Outstanding Loan Balances ÷ Current Appraised Home Value × 100
Let’s use some round numbers as an illustration. For this hypothetical, we’ll have a first mortgage balance of $200,000. Then, introduce a home equity loan balance of $40,000.
That means the total balance between the two loans would be $240,000. Now, let’s say your home appraised for $350,000. $240,000 ÷ $350,000 = 0.686. Multiply that by 100, and you would have a CLTV of roughly 68.6%.
The remaining 31.4% represents the equity not currently pledged to a lender. Whether that’s sufficient to qualify for additional borrowing depends on the lender’s guidelines, the type of loan, and other factors in your financial profile.
Why Do Lenders Use CLTV?
CLTV is a risk measurement. The higher the ratio, the more of the home’s value is encumbered by debt, and the less buffer a lender has if the borrower defaults or if property values decline. A lower CLTV means more equity and, generally, a stronger borrowing position.
For home equity products specifically, CLTV influences:
- How much you may be able to borrow. Lenders set maximum CLTV thresholds, and your borrowing capacity is determined in part by how much room remains under that limit.
- Your approval odds. A higher CLTV may narrow the available options or affect the terms a lender is willing to extend.
- How market shifts affect your position. If your home’s value decreases, your CLTV rises, even if you haven’t borrowed a dollar more. That can change what’s available to you.
What Moves Your CLTV?
CLTV isn’t fixed. Several factors can push it up or bring it down over time.
It goes up when you borrow more against the property, or when your home’s appraised value falls. It generally goes down as you pay down existing balances or as your home’s value rises.
If your CLTV is higher than a lender’s threshold for a loan product you’re considering, the most direct paths to improving it are paying down existing loan balances or waiting for your equity position to strengthen. Refinancing to consolidate balances can also affect CLTV, though the net impact depends on the specific loan amounts involved.
Key Takeaways
- CLTV measures the total debt secured by your property across all loans compared to its current appraised value.
- The formula is total loan balances ÷ appraised home value × 100.
- Unlike LTV, which looks at one loan, CLTV reflects the full debt picture a lender sees.
- It’s a primary factor in home equity loan and HELOC underwriting, shaping both eligibility and borrowing limits.
- CLTV changes as loan balances shift and as your home’s market value moves.
Final Thoughts
CLTV is a straightforward ratio with specific implications for anyone looking to borrow against their home. Understanding where you stand before you apply for a home equity loan or HELOC gives you a more accurate picture of your options and helps you have a more productive conversation with a lender.
This information is intended for educational purposes only. Products and interest rates subject to change without notice. Loan products are subject to credit approval and include terms and conditions, fees and other costs. Terms and conditions may apply. Property insurance is required on all loans secured by property. VA loan products are subject to VA eligibility requirements. Adjustable Rate Mortgage (ARM) interest rates and monthly payment are subject to adjustment. Upon submission of a full application, a mortgage banker will review and provide you with the terms, conditions, disclosures, and additional details on the interest rates that apply to your individual situation.
