Is a RIO mortgage a better option than borrowing against my pension?
13th February 2026
By ProMoney
A Retirement Interest-Only (RIO) mortgage allows homeowners to raise capital by paying only the interest until the property is sold. Borrowing against a pension, however, involves complex tax implications and potentially substantial long-term risks to retirement security. Choosing between these options depends heavily on your current income, existing savings, tax position, and long-term financial goals.
Is a RIO mortgage a better option than borrowing against my pension?
For UK homeowners approaching or already in retirement, finding ways to access capital can be crucial for covering unexpected expenses, improving the home, or simply enhancing quality of life. The comparison between a Retirement Interest-Only (RIO) mortgage and accessing capital via a personal pension pot requires a thorough understanding of the mechanics, compliance risks, tax consequences, and long-term implications of each financial strategy.
There is no universally ‘better’ option; the correct choice relies entirely on your personal circumstances, including the size of your pension, your income stability, and whether you intend to pass on the property as an inheritance.
Understanding Retirement Interest-Only (RIO) Mortgages
A RIO mortgage is designed for older homeowners (typically aged 55 or above, depending on the lender) who need a conventional mortgage structure but cannot manage a capital repayment schedule. With a RIO mortgage, you borrow a lump sum and are required to make monthly interest payments for the duration of the loan. The original capital is only repaid when a ‘life event’ occurs, usually the last borrower’s death or when they move into long-term care and the property is subsequently sold.
Key Features of a RIO Mortgage
- Affordability Check: Unlike standard Equity Release products, RIO lenders must ensure you can comfortably afford the monthly interest payments throughout the lifetime of the loan. This typically involves rigorous assessment of your retirement income (e.g., state pension, private pensions, investments).
- Security: The loan is secured against your property. As with any secured debt, Your property may be at risk if repayments are not made. Consequences of default can include legal action, repossession, increased interest rates, and additional charges.
- Inheritance: Since the capital is repaid upon sale, there will be less equity left in the property for beneficiaries than if the debt had not been taken out.
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Understanding Accessing or Borrowing Against Your Pension
The term “borrowing against a pension” can be misleading in the context of UK defined contribution schemes. Unlike some systems abroad, you generally cannot take a loan secured against your private pension fund. Instead, accessing capital means making a withdrawal, which carries significant tax consequences and risks to your long-term retirement security.
The Implications of Pension Withdrawal
Since the introduction of Pension Freedoms in 2015, individuals over the age of 55 (rising to 57 in 2028) can access their defined contribution pots. However, this access is highly regulated:
- Tax-Free Cash (TFC): You can usually take up to 25% of your pension pot tax-free.
- Taxable Income: Any amount withdrawn beyond the 25% TFC is treated as taxable income in that financial year. This is a critical point; if a large withdrawal pushes you into a higher income tax bracket, you could lose a substantial portion to HMRC.
- The Money Purchase Annual Allowance (MPAA): Taking taxable income from your pension (beyond the 25% TFC) triggers the MPAA, which drastically reduces the amount you can contribute to your pension tax-efficiently in future years. This limits your ability to rebuild your savings.
Attempting to access pension funds earlier than age 55, or through unregulated schemes, typically results in the payment being classified as an ‘unauthorised payment’. This usually incurs tax charges of at least 40%, and potentially up to 55%, on the amount withdrawn—a catastrophic loss of capital.
It is vital to obtain official, regulated guidance before accessing your pension funds early. The government-backed service Pension Wise, managed by MoneyHelper, provides free, impartial guidance on pension options. You can find more information here: MoneyHelper Pension Wise Guidance.
Comparing Financial and Tax Implications
When assessing whether a RIO mortgage is a better option than borrowing against your pension, the comparison hinges on income stability, tax efficiency, and the protection of long-term assets.
1. Tax Treatment
RIO Mortgage: The funds raised are a loan, not income. Therefore, RIO funds are not subject to income tax. The interest payments themselves are paid out of your existing taxable income.
Pension Withdrawal: Any money taken beyond the initial 25% tax-free lump sum is immediately added to your income for tax purposes. If you withdraw £50,000, and you are already a basic rate taxpayer, that withdrawal could push you into the higher 40% tax bracket, significantly eroding the cash available.
2. Affordability vs. Liquidity
RIO Mortgage: Requires guaranteed, sustainable income to service the interest payments. The lender bears the risk of capital repayment but demands proof of affordability for monthly costs. This can be restrictive if your only income is the State Pension.
Pension Withdrawal: Provides high liquidity—immediate access to cash—but at the cost of your future self. There is no ongoing monthly payment required, but the capital reduction may lead to serious financial difficulty years down the line.
3. Long-Term Financial Security
RIO Mortgage: Preserves your pension pot entirely, allowing it to continue benefitting from investment growth and compounding over time. Your debt is secured against property equity, not your retirement income stream.
Pension Withdrawal: Directly reduces the fund size intended to generate income for the rest of your life. While it solves an immediate need, reducing the pot early limits potential growth and increases the risk of running out of money later in retirement.
When Might a RIO Mortgage Be Preferable?
A RIO mortgage generally presents a better option if:
- You have sufficient, reliable income (from a combination of state and private pensions, or other savings) to comfortably cover the interest payments every month.
- You want to preserve the tax-efficient status and potential growth of your existing pension pot.
- The required capital sum is substantial, making a lump-sum pension withdrawal highly tax-inefficient.
- You wish to maintain ownership of the property for life.
When Might Pension Access Be Necessary?
Accessing your pension might be the necessary route only if:
- You cannot qualify for a RIO mortgage due to insufficient income to meet the affordability requirements.
- The capital need is small enough to be covered primarily by the 25% tax-free lump sum, minimising the taxable impact.
- You have significant additional retirement savings or assets that make the reduction of your current pension pot a manageable risk.
Given the complexity and the life-changing nature of both decisions, professional, regulated financial advice is essential. A financial adviser can model the long-term impact of both a secured mortgage debt and early pension fund depletion, tailored specifically to your circumstances.
People also asked
What is the minimum age for a Retirement Interest-Only mortgage?
While RIO mortgages are often targeted at older borrowers, the minimum age is typically 55, although specific lenders may set higher minimums, sometimes 60 or 65. The primary requirement is not just age but proving sustainable income to service the interest payments.
Can I use my pension to pay off a RIO mortgage?
Yes, you could potentially use your 25% tax-free lump sum (if available) to fund the interest payments on a RIO mortgage or even repay some of the capital. However, using your tax-free cash for debt service rather than essential retirement income should be carefully reviewed by a financial adviser.
Are RIO mortgages the same as Equity Release?
No, they are different. Standard Equity Release (specifically Lifetime Mortgages) allows interest to be rolled up, meaning no monthly payments are required, but the debt grows significantly over time. RIO mortgages require mandatory monthly interest payments, meaning the debt size remains constant, provided payments are kept up.
What is the main risk of withdrawing money from my pension early?
The main risk of withdrawing funds early (beyond the tax-free portion) is triggering high income tax bills and drastically reducing your lifetime retirement income. It also triggers the Money Purchase Annual Allowance (MPAA), restricting future tax-efficient pension savings.
Do I have to take financial advice for a RIO mortgage?
While taking advice for a RIO mortgage may not be strictly mandatory, it is highly recommended. For accessing your pension funds via drawdown or lump sum withdrawals, seeking regulated financial advice is essential due to the complex tax and income implications.
In conclusion, while accessing your pension pot may seem like a quick solution, the long-term cost to your financial security, coupled with immediate tax liabilities, makes it a riskier strategy for raising capital than a RIO mortgage, provided you meet the RIO affordability criteria. The RIO mortgage allows you to leverage your property asset while protecting your precious, tax-efficient pension funds.


