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The loan-to-value (LTV) ratio is a financial term used by commercial lenders to express the ratio of a loan underwritten to a value of an asset purchased.
The term is commonly used by banks and building societies to represent the ratio of the first mortgage lien as a percentage of the total appraised value of real property. For instance, if a borrower borrows $130,000 to purchase a house worth $150,000 at a relative valuation, the LTV ratio is $130,000/$150,000 or 87%.
Loan to value is one of the key risk factors that lenders assess when qualifying borrowers for a mortgage. The risk of default is always at the forefront of lending decisions, and the likelihood of a lender absorbing a loss in the foreclosure process increases as the amount of equity decreases. Therefore, as the LTV ratio of a loan increases, the qualification guidelines for certain mortgage programs become much more strict. Lenders can require borrowers of high LTV loans to buy mortgage insurance to protect the lender from the buyer default, which increases the costs of the mortgage.
The valuation of a property is typically determined by an appraiser, but there is no greater measure of the actual real value of one property than an arms-length transaction between a willing buyer and a willing seller. Typically, banks will utilize the lesser of the appraised value and purchase price if the purchase is "recent." What constitutes recent varies by institution but is generally between 1–2 years.
Low LTV ratios (below 80%) carry with them lower rates for lower-risk borrowers and allow lenders to consider higher-risk borrowers, such as those with low credit scores, previous late payments in their mortgage history, high debt-to-income ratios, high loan amounts or cash-out requirements, insufficient reserves and/or no income documentation. Higher LTV ratios are primarily reserved for borrowers with higher credit scores and a satisfactory mortgage history. The full financing, or 100% LTV, is reserved for only the most credit-worthy borrowers.
In the United States, conforming loans that meet Fannie Mae and Freddie Mac underwriting guidelines are limited to an LTV ratio that is less than or equal to 80%. Conforming loans above 80% are subject to private mortgage insurance. For properties with more than one mortgage lien, such as stand-alone seconds and home equity lines of credit (HELOC), the individual mortgages are also subject to combined loan to value (CLTV) criteria. The LTV for the stand-alone seconds and HELOCs would simply be their respective loan balance as a percentage of the total appraised value of real property. However, in order to measure the riskiness of the borrower, one should look at all outstanding mortgage debt as a percentage of the total appraised value of real property (CLTV).
In Australia, the term Loan to Value Ratio is abbreviated to LVR instead of LTV. An LVR of 80% or below is considered to be a low risk for standard conforming loans, and below 60% for a no doc loan or low doc loan. Higher LVRs are available if the loan is mortgage insured.
In the UK, mortgages with an LTV of up to 125% were quite common in the run-up to the national / global economic problems, but today (November 2011) there are very few mortgages available with an LTV of over 90% - and 75% LTV mortgages are the most common.
The term "Combined Loan To Value" adds additional specificity to the basic Loan to Value which simply indicates the ratio between one primary loan and the property value. When "Combined" is added, it indicates that additional loans on the property have been considered in the calculation of the percentage ratio.
The aggregate principal balance(s) of all mortgages on a property divided by its appraised value or Purchase Price, whichever is less. Distinguishing CLTV from LTV serves to identify loan scenarios that involve more than one mortgage. For example, a property valued at $100,000 with a single mortgage of $50,000 has an LTV of 50%. A similar property with a value of $100,000 with a first mortgage of $50,000 and a second mortgage of $25,000 has an aggregate mortgage balance of $75,000. The CLTV is 75%.
Combined Loan to Value is an amount in addition to the Loan to Value, which simply represents the first position mortgage or loan as a percentage of the property's value.