THE SHORT ANSWER
Loan-to-value ratio, or LTV, is the loan amount divided by the property value used for the calculation. It describes leverage against collateral. It does not show whether rent covers the payments, how much cash a renovation needs, or whether the value assumption will hold.
TRY THE MATH
Loan-to-value calculator
Hypothetical example values. Replace them with your own assumptions. Nothing is saved or sent.
An educational calculation, not a property valuation or financing decision. Definitions and lender adjustments can differ. Check the guide’s assumptions and limitations.
The basic formula
LTV = loan amount ÷ property value × 100. Identify both inputs. For a purchase, a lender's applicable rules may use an appraised value, purchase price, or the lower of the two. Do not substitute a hoped-for future value for the lender's accepted basis.
A hypothetical $1,400,000 loan against a $2,000,000 value equals 70% LTV. The $600,000 difference is not a complete acquisition budget. Closing costs, inspections, repairs, and reserves still need funding.
How a value change affects leverage
If that same loan remains $1,400,000 but value falls to $1,750,000, LTV rises to 80%. No additional borrowing is needed for the ratio to increase.
This matters when planning a refinance. A future lender may accept a different property value and apply new income or leverage constraints. A plan that assumes refinancing will return all invested cash needs to be tested against less favorable values and loan terms.
Distinguish LTV, combined LTV, and loan-to-cost
Combined LTV includes the debt layers specified in the calculation, such as a first mortgage and subordinate loan. Looking only at senior LTV can hide additional obligations. Loan-to-cost, or LTC, compares financing with an eligible project-cost basis instead of value.
| Measure | Illustrative inputs |
|---|---|
| Senior LTV | $1.4 million first loan ÷ $2 million value = 70% |
| Combined LTV | $1.4 million first loan + $200,000 second loan, divided by $2 million = 80% |
| Loan-to-cost | Loan amount divided by the stated eligible project costs |
Evaluate leverage with cash flow and reserves
A low LTV does not make payments affordable if operations are weak. A loan supported by acceptable DSCR may still expose the borrower to refinancing risk. Use LTV, DSCR, debt yield, and a cash budget together.
Review guarantees, collateral, subordinate debt permissions, and covenants in the actual loan documents. The ratio is a summary of two numbers; the documents establish the obligations.
- Record the value date and evidence.
- List every debt layer and payment.
- Include transaction costs outside the down payment.
- Recalculate leverage under a lower-value scenario.
Common questions
Is 70% LTV the same as a 30% total cash requirement?
No. It describes the price or value gap under those inputs. Fees, repairs, and reserves can increase the cash needed.
Can LTV exceed 100%?
Yes. If debt exceeds the value used in the calculation, LTV is above 100%. That can happen when property value declines.
Sources & further reading
Educational content from Real Estate 101. Updated 2026-09-05. Refer to the original sources and your professional advisers for transaction-specific requirements.