CLTV (Combined Loan-to-Value)
Also known as: Combined LTV, Cumulative loan-to-value
The total of all liens against a property divided by the property's appraised value. Used by lenders to assess risk when a second-lien product (HELOC, home equity loan) is being underwritten on a home that already has a first mortgage.
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Combined loan-to-value extends the basic LTV concept (first-lien loan divided by property value) to account for any additional liens against the property. CLTV = (first mortgage balance + any second mortgage + any HELOC limit) / appraised property value. A homeowner with a $300,000 first mortgage and a $50,000 HELOC limit on a $500,000 home has CLTV of ($300,000 + $50,000) / $500,000 = 70%. The full HELOC limit is counted even if the borrower has not drawn on it, because the lender's risk is the maximum potential exposure.
CLTV caps drive how much second-lien borrowing a homeowner can access. Most HELOC lenders cap CLTV at 80-85% for typical borrowers, occasionally up to 90% for high-credit-score applicants. A homeowner with the picture above (70% CLTV after the HELOC) wanting more equity access would face an 80% CLTV cap of: $400,000 total liens — meaning they can borrow up to an additional $50,000 ($400,000 cap minus the $350,000 already extended) without exceeding the cap. A homeowner at 78% CLTV is at the practical ceiling and cannot get more equity-tap borrowing without paying down the first mortgage or waiting for appreciation.
The CLTV calculation uses the appraised value at the time of the new loan, which can differ substantially from the price the homeowner paid or from the prior appraised value. In appreciating markets, CLTV improves automatically as the home gains value (the denominator grows while the numerator stays constant or decreases via amortization). In declining markets, CLTV worsens, which can trigger HELOC freezes or reductions in the available line — most HELOC contracts allow the lender to reduce or freeze the available line if CLTV approaches or exceeds the contract cap due to value decline.
CLTV interacts with private mortgage insurance (PMI) and lender risk pricing. Conventional mortgages with CLTV above 80% typically require PMI on the first lien even if the second lien is the part causing the CLTV to exceed 80%. Some lenders price the first mortgage rate differently when a piggyback second lien is present at origination; the '80/10/10' financing structure (80% first mortgage, 10% second lien, 10% down payment) is a classic technique to avoid PMI on the first mortgage while still achieving 90% combined financing — at the cost of a higher rate on the second lien and a higher overall blended payment than a single 90% LTV loan with PMI in some cases.
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- LTV (Loan-to-Value) The ratio of a loan's principal balance to the appraised value of the underlying collateral, expressed as a percentage. The primary determinant of PMI eligibility, mortgage refinance access, and rate tiering for most secured loan products.
- HELOC (Home Equity Line of Credit) A revolving line of credit secured by home equity, typically with a 10-year draw period at variable Prime+margin rates followed by a 10-20 year repayment period. The most flexible home-equity tap and the dominant choice post-2022 versus cash-out refi.
- DTI (Debt-to-Income) The ratio of a borrower's monthly debt payments to gross monthly income, expressed as a percentage. The primary qualifying gate for most US loans — particularly mortgages, where guidelines typically cap front-end DTI at 28–31% and back-end DTI at 43–50%.
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