David Chen is a Certified Financial Analyst with over 10 years of experience in UK equity-release and lifetime-mortgage analytics.
Use this free just lifetime mortgage calculator to estimate how much tax-free cash you can release from your UK home and the compounded interest owed over your lifetime.
Just Lifetime Mortgage Calculator
Lifetime Mortgage Formula
Max Cash: Property Value × Max LTV
Compounded Debt: Cash × (1 + r)^years
Formula Sources: MoneyHelper | Equity Release Council
Variables
- Property Value: Current open-market valuation.
- Age: Youngest borrower affects LTV and rate.
- Max LTV: Loan-to-value limit set by lender.
- Fixed Rate: Lifetime fixed rate (no repayments until death/sale).
- Years: Estimated time before sale or repayment.
Related Calculators
- Drawdown Lifetime Mortgage Calculator
- Interest-Only Lifetime Mortgage Calculator
- Enhanced Lifetime Mortgage Calculator
- Home Reversion Calculator
What Is a Just Lifetime Mortgage?
A lifetime mortgage from Just allows UK homeowners aged 55+ to release tax-free cash without monthly repayments. Interest rolls up at a fixed rate and is repaid only when you die or move into long-term care, typically from the sale of your home.
How to Calculate Lifetime Mortgage (Example)
- Enter your property value (e.g., £400,000).
- Input the youngest homeowner age (e.g., 70).
- Input the max LTV Just offers (e.g., 35%).
- Set the fixed rate (e.g., 6.2%) and estimated years until repayment (e.g., 15).
- Click “Calculate” to see maximum cash and projected compounded debt.
Frequently Asked Questions (FAQ)
Is the rate really fixed for life? Yes—Just lifetime mortgages guarantee the rate will never change.
Can I make voluntary interest payments? Some Just products allow partial repayments without early-repayment charges.
Will I ever owe more than my home is worth? No—Just provides a no-negative-equity guarantee.
How accurate is the projection? The calculator assumes compound interest; actual house-price growth may offset the debt.