If you have recently suffered an illness or injury that resulted in a reduced payslip, you might worry that your mortgage dreams are on hold. A single month of lower pay does not usually result in an automatic rejection, provided we can demonstrate it was a temporary dip rather than a permanent change to your financial circumstances.
Lenders are primarily interested in your 'sustainable income.' Affordability stress tests remain thorough, but underwriters have become more adept at looking beyond a single outlier document.
How do mortgage lenders view a reduced payslip?
When you submit your application, most lenders request your last three months of payslips. If month one and two show £3,000 gross, but month three shows £1,200 due to sick leave, an automated system might calculate your average income as £2,400.
This reduction can significantly impact your maximum borrowing limit. However, human underwriters can often disregard the reduced month if we provide evidence that you have since returned to your full duties and full pay.
What is the difference between SSP and Company Sick Pay?
The type of sick pay you receive influences how a lender perceives the risk. From 6 April 2026, Statutory Sick Pay (SSP) is £123.25 per week or 80% of your average weekly earnings, whichever is lower. Under the 2026 rules it is payable from the first full day of sickness for eligible employees, for up to 28 weeks. Most lenders will not use SSP as a basis for long-term affordability because it is a temporary safety net.
In contrast, some corporate employers offer 'enhanced' or 'occupational' sick pay, which might cover your full salary for six months. If your payslip shows you are on full-pay sick leave, some lenders may still proceed as normal, though they will likely ask for a medical report or employer confirmation regarding your return date.
Illustrative comparison: SSP vs. full contracted pay impact
| Scenario | Monthly Gross Income | Max Loan Estimate (4.5x) |
|---|---|---|
| Full Salary | £3,500 | £189,000 |
| Month with 2 weeks SSP | £1,980 | £106,920 |
| 12-Month Average (1 sick month) | £3,373 | £182,142 |
Pro Tip: If you know a reduced payslip is coming, try to wait until you have a 'clean' full-pay payslip before hitting submit on a full application. This avoids unnecessary queries from the underwriter.
Why do different lenders react differently?
Lenders have varying 'risk appetites.' Some use a strict average of the last three months regardless of the reason for the dip. Others are more flexible and will use your P60 or the basic salary stated in your employment contract, provided the sickness was a one-off event.
Following the recent FCA mortgage reforms, there is a greater emphasis on 'Consumer Duty' and fair outcomes. This means lenders are encouraged to look at the 'big picture' of a borrower's financial health rather than penalising them for a short-term health setback.
What evidence do I need to provide?
To mitigate the impact of a reduced payslip, we usually build a 'case' for the underwriter. This goes beyond just the payslips themselves. We may suggest including:
- An Employer Letter: Confirming your return-to-work date, that you are back on your full salary, and that your role is secure.
- Bank Statements: To show that you had sufficient savings to cover the shortfall during the sick period, proving financial resilience.
- Medical Evidence: Simple confirmation that the illness was a one-off (e.g., a broken limb or surgery recovery) rather than a chronic issue that might recur.
How does ‘Income Smoothing’ work?
Income smoothing is a technique where we ask the lender to look at a longer period of your earnings history—typically 12 or 24 months—to arrive at a fair figure. If you have been with your employer for years and have a consistent track record of full pay, one month of sickness is easily identified as an anomaly.
We have access to over 90 lenders, many of whom specialize in these 'common sense' manual underwriting approaches. You can see how different income levels affect your options using our /calculators.
What I tell my clients
"The biggest mistake I see is clients trying to 'hide' a sick-pay slip or hoping the lender won't notice. They always notice. My advice is always to be up-front. If we explain the situation in our initial submission notes, we can usually select a lender that we know is sympathetic to temporary health absences, rather than wasting time with a high-street bank that uses a rigid computer algorithm." — Matt
Can I remortgage while on sick leave?
If you are currently on sick leave and looking to /services/remortgage, the process is slightly different. If you stay with your current lender (a 'product transfer'), they rarely ask for new income evidence. However, if you want to switch to a new lender for a better rate, you will face the same affordability checks as a new buyer.
If you are a [/services/first-time-buyers](first-time buyer), a reduced payslip can be more problematic as you don't have a mortgage history to fall back on. In these cases, having a larger deposit can sometimes help offset the perceived risk of income volatility.
The importance of Income Protection
This situation highlights why we often discuss /insurance and specifically income protection with our clients. Having a policy that pays out if you cannot work due to illness ensures that your mortgage remains affordable, and it provides a clear paper trail for lenders that your home is protected even during health crises.
Pro Tip: Check if your employer offers a 'Phased Return to Work.' If you are working 50% hours while recovering, this is often viewed more favourably than being 100% off work, as it shows a clear path back to full productivity.
How to proceed with your application
If you are worried about how a recent illness might affect your chance of getting a mortgage, don't guess the outcome. We can look at your specific payslips and match you with a lender from our panel of 90+ that has the most favourable policy for your situation.
You can find more information in our /mortgage-guides or see the latest market trends at /best-mortgage-rates. To talk through your specific situation and see what you can borrow, please /contact us for a free initial consultation.