Retirement Interest-Only Mortgage Calculator
RIO Mortgage Results
Loan-to-Value (LTV)-
Monthly Interest Payment-
Annual Interest Cost-
% of Retirement Income-
Total Interest Over Life Expectancy-
Estimated Estate After Repayment-
Affordability Assessment-
RIO vs Lifetime Mortgage Comparison
| Feature | RIO Mortgage | Lifetime Mortgage |
|---|---|---|
| Monthly Payments | Interest only - mandatory | Optional (can roll up) |
| Debt Over Time | Stays same (interest paid) | Grows (if rolling up) |
| Interest Rates | 4.5-6.5% (variable/fixed) | 5.5-7.5% (fixed for life) |
| Max LTV | 50-60% typically | Up to 60% (age dependent) |
| Negative Equity | Possible (no guarantee) | No negative equity guarantee |
| Repayment | Sale of property or death | Sale of property or death |
| FCA Regulated | Yes (standard mortgage) | Yes (equity release) |
RIO Mortgage Key Facts
Min Age
55+
Max LTV
50-60%
Typical Rate
4.5-6.5%
Term
To death or sale
Payments
Interest only
Affordability
Stress tested
How to Use This Calculator
1
Enter property value and loan amount
Input your property's value and how much you want to borrow. RIO mortgages typically allow up to 50-60% LTV.
2
Set the interest rate
Enter the interest rate. Current RIO rates are typically 4.5-6.5% depending on the lender and LTV.
3
Enter your age and income
Input your age and monthly retirement income. This determines affordability and estimated term.
4
Review monthly costs
The calculator shows monthly interest payments, affordability assessment, and comparison with estate impact.
Frequently Asked Questions
What is a RIO mortgage?
A Retirement Interest-Only (RIO) mortgage is a lifetime interest-only mortgage for borrowers aged 55+. You make monthly interest payments but never repay the capital. The loan is repaid when you sell the property, move into long-term care, or die. Unlike equity release, you make regular payments, which means the debt does not grow.
How is a RIO mortgage different from equity release?
With a RIO mortgage, you must make monthly interest payments, so the debt stays the same. With a lifetime mortgage (equity release), payments are optional - unpaid interest is added to the loan, so the debt compounds. RIO rates are typically lower (4.5-6.5% vs 5.5-7.5%) but require proven affordability.
What are the eligibility requirements?
You must be aged 55+ (some lenders 60+), have sufficient retirement income to afford payments after stress testing, and have adequate property value. Maximum LTV is typically 50-60%. Lenders assess affordability based on guaranteed income (state pension, defined benefit pension, annuities) rather than investment drawdown.
What happens when the borrower dies?
The property is sold and the loan plus any outstanding interest is repaid from the proceeds. Any remaining equity goes to the estate/beneficiaries. Unlike lifetime mortgages, RIO mortgages do not always include a no-negative-equity guarantee, so if property values fall, there could be a shortfall.
Can I move house with a RIO mortgage?
Yes, most RIO mortgages are portable, meaning you can transfer the mortgage to a new property subject to the lender's approval and the new property meeting their criteria. This is important if you want to downsize later. Some lenders may require a new application.
Is a RIO mortgage right for me?
A RIO mortgage suits people who: need to release equity but can afford monthly payments, want to maintain the value of their estate for beneficiaries, have guaranteed retirement income, want lower interest rates than equity release, and plan to stay in their home long-term. Independent financial advice is essential before proceeding.
Official Sources & References
Data verified against official UK government sources. Last checked April 2026.