Loan to Value Ratio Calculator and Required Documents

A loan-to-value (LTV) ratio calculator shows how large a loan is compared with the value of the property securing it. Enter the loan amount and property value to get the LTV as a percentage; documents such as an appraisal and loan statement help verify those figures.

Formula

LTV (%) = loan amount ÷ property value × 100. The loan amount is the balance or proposed principal being assessed, in dollars. Property value is the value used for that assessment, also in dollars. The calculator’s second result is the simple difference, equity = property value − loan amount, in dollars. The equity result is meaningful as positive ownership value only when the loan amount does not exceed the property value.

LTV is a ratio, not a count of documents. The documents establish or support the two inputs: the amount owed or requested, and the value assigned to the property. Different lenders and transactions may use different documentation and valuation procedures, so confirm requirements with the lender handling the application.

Worked Example

Using the calculator’s defaults:

• Loan amount: $300,000
• Property value: $400,000
• LTV = $300,000 ÷ $400,000 × 100 = 75.00%
• Equity amount = $400,000 − $300,000 = $100,000.00

The percentage says the loan equals three-quarters of the stated property value. It does not mean that the borrower has paid exactly 25% of the purchase price: the relevant value, loan balance, and other obligations may differ from the original purchase figures.

Assumptions

• The entered loan amount and property value are stated in the same currency and refer to the same property and assessment.
• This is a direct ratio calculation; it does not model interest, repayment timing, or compounding.
• The calculation does not include fees, taxes, insurance, mortgage insurance, escrow, or other debts secured against the property.
• The calculator does not determine which valuation or balance a lender will accept.

Documents That Support an LTV Calculation

There is no universal document checklist for every loan. A lender may request different records for a purchase, refinance, home-equity loan, or another secured borrowing. Commonly relevant documents include:

• Property valuation: an appraisal, valuation report, or other valuation the lender accepts. A purchase agreement can show an agreed price, but it is not necessarily the value the lender will use.
• Purchase agreement or closing statement: documents showing the transaction price and, once available, the amounts paid or financed at closing.
• Mortgage statement or payoff statement: evidence of an existing loan balance. A payoff statement may reflect an amount needed to clear the debt on a specific date, which can differ from the balance displayed on a regular statement.
• Recorded lien or mortgage information: records that may help establish other loans secured by the property. The lender may identify or verify these through its own process.
• Ownership and property records: documents that help identify the property and ownership, where requested.

These are examples, not a guarantee that every item is required or sufficient. Ask the lender which valuation, loan balance, date, and supporting records it will use. Do not send sensitive financial records through an unverified channel; use the lender’s confirmed secure submission method.

How LTV Works and Which Figures Matter

For a proposed purchase loan, the numerator is generally the loan amount being considered and the denominator is the property value used for that transaction. For an existing mortgage, the relevant numerator may instead be the current unpaid principal, sometimes combined with other secured borrowing. The applicable method depends on the product and lender’s calculation.

For example, a $300,000 loan against a property valued at $400,000 gives an LTV of 75%. If the accepted value were $375,000 while the loan amount stayed $300,000, the ratio would be 80%. This illustrates why an estimate based on a listing price or an online valuation may not match a lender’s result.

When several loans are secured by one property, a lender may consider more than the first mortgage. A combined loan-to-value (CLTV) calculation generally compares the total of relevant secured loan balances with the property value. Which accounts are included varies; a simple LTV calculator does not infer or add other liens automatically.

Common Document and Calculation Problems

• Using the wrong value: a tax assessment, asking price, purchase price, and lender-accepted appraisal are not interchangeable by default.
• Using an outdated balance: mortgage principal changes with payments and may differ from a dated payoff quote. Make sure the figure corresponds to the lender’s requested date.
• Mixing up loan amount and cash needed: a down payment is not the loan amount. For a basic purchase calculation, use the amount borrowed, not the purchase price minus unrelated costs.
• Ignoring other secured loans: a second mortgage or home-equity borrowing may affect a combined ratio even when it is absent from the first-loan balance.
• Comparing rounded percentages: calculate using the underlying dollar amounts, then round the displayed result. Small differences in inputs can affect a result near a lender’s threshold.

An LTV result alone does not establish approval, available borrowing, a price, or the terms of a loan. Lenders may consider other information and apply their own documentation and underwriting procedures. The calculator performs arithmetic only.

Frequently Asked Questions

What documents prove the value of a property for LTV?
A lender-accepted appraisal or valuation report is a common source. A purchase agreement or other property information may also be requested, but ask the lender which value and evidence apply to your transaction.

What document shows my current mortgage balance?
A recent mortgage statement typically reports an outstanding balance. If an exact payoff figure is needed, request a payoff statement for the relevant date because it may differ from the regular statement balance.

Is LTV based on the purchase price or appraisal?
It depends on the lender’s method and the transaction. Do not assume the contract price, tax assessment, or an informal estimate is the denominator; confirm the accepted property value with the lender.

Does LTV include a second mortgage?
A basic LTV calculation may use only the loan entered. A combined ratio can include other borrowing secured by the property, but which balances count depends on the lender’s calculation.

Is a lower LTV a guarantee of loan approval?
No. LTV is one ratio and does not by itself determine whether a loan is approved or what its terms will be. Other application details and lender procedures are outside this calculator.

This result is an estimate; the lender’s disclosure gives the exact figures.

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in loan | Loan amount | $ | 300000 | 1 | 100000000
in value | Property value | $ | 400000 | 1 | 100000000
out ltv | Loan-to-value ratio | % | loan / value * 100 | 2
out equity | Equity amount | $ | value - loan | 2