Once you're retired, or approaching it, lenders shift from assessing salary to assessing pension, drawdown, annuity and investment income, as explained in our Mortgages for Older Borrowers guide. Combine your retirement income sources below to estimate what you might realistically be able to borrow.
What you enter and what each field means
The calculator combines four income sources that lenders commonly accept in retirement affordability assessments:
- State Pension: The income you're receiving (or entitled to) from the basic State Pension. You can check your State Pension entitlement via the GOV.UK Check your State Pension service. Some lenders will project State Pension income for applicants who haven't yet reached State Pension age; others won't count it until it's in payment.
- Private or workplace pension income: The annual income you're drawing from a defined benefit (final salary) or defined contribution pension. For defined benefit pensions this is typically a fixed guaranteed payment. For defined contribution pensions, it depends on what you're drawing and when.
- Drawdown or annuity income: Income being drawn from a pension pot (drawdown), or a guaranteed income purchased from an annuity provider. Some lenders treat drawdown income more cautiously than annuity income because drawdown depends on ongoing investment performance and the sustainability of the withdrawal rate.
- Other investment income: Dividends, rental income from other properties, regular ISA withdrawals, or other regular income. Not all lenders treat investment income the same way — some require it to be sustainable for the full mortgage term before counting it.
Why the income multiple matters more here than for employed borrowers
| Income multiple applied | Effect on £38,500 total retirement income |
|---|---|
| 4.5x (standard employment-style multiple) | £173,250 estimated borrowing |
| 4.0x (a common, more conservative retirement-income multiple) | £154,000 estimated borrowing |
| 3.5x (a more cautious lender) | £134,750 estimated borrowing |
As explained in our Older Borrowers guide, some lenders assess pension and investment income on its own merits, at the same multiple as employment income; others apply a lower multiple specifically to retirement income sources. This single difference, as shown above, can change your borrowing estimate by tens of thousands of pounds on identical income, which is exactly why it's worth checking a specific lender's approach, or using a specialist broker, rather than assuming a standard multiple applies.
What this calculator cannot assess
The calculation is a simple multiplication of assessed income by a chosen multiple. It does not account for: your credit history or existing debts (which reduce what a lender will offer), the property's loan-to-value ratio and the lender's LTV limit for retirement borrowers, any end-of-term age limit the lender applies (use the Maximum Mortgage Age Calculator for that), whether the lender will accept each of your specific income sources as qualifying, or whether a Retirement Interest-Only product or equity release product might be more appropriate for your situation.
Two borrowers with identical income figures can receive very different outcomes from different lenders in this area of the market. The borrowing figure shown is not a guarantee of what you will be offered.
Retirement lending is one of the most individually variable areas of UK mortgage underwriting. This calculator illustrates the general shape of the calculation — it is not a guide to what you will actually be offered. Speak to a qualified mortgage adviser before proceeding, particularly if your income includes drawdown or investment income that a lender may treat differently from the full amount shown.
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