Start with CLTV
Combined loan-to-value divides the first mortgage plus the new lien by the current property value. Lenders set their own limits and may use a different valuation.
Fixed second-lien analysis
A home equity loan delivers a lump sum and usually uses a fixed payment. This model keeps the first mortgage visible, tests a lender CLTV ceiling, prices fees three ways and tracks both liens over time.
Decision guide
The payment is only one part of the decision. The new debt sits behind the first mortgage, reduces the equity cushion and puts the home at risk if payments cannot be made.
Combined loan-to-value divides the first mortgage plus the new lien by the current property value. Lenders set their own limits and may use a different valuation.
A requested loan is not always the cash received. Origination charges, appraisal costs and other fees may be paid upfront, deducted or added to principal.
Long repayment terms reduce the monthly payment but can outlast the purchase being financed. Compare total interest and keep a realistic payoff plan.
Missed payments can lead to foreclosure. Keep an emergency reserve and test the combined first- and second-lien payment against income.
Do not assume interest is deductible. Use-of-funds, itemization and current tax rules matter; consult a qualified tax adviser.
The fee-adjusted APR here is a model. Compare the lender's Loan Estimate or applicable disclosure, rate, cash received and total payments.
Simple by design
Use realistic values in each field. You can change them anytime.
The formula runs locally, so there is no account or waiting time.
Treat the answer as a practical estimate for your next decision.