Can I get a mortgage if my self-employed income has fluctuated significantly over the last two years?

The short answer

Yes, you can still get a mortgage, but your choice of lender will depend on how they interpret those fluctuations. While high-street banks often insist on averaging your income over two or three years, specialist lenders may be willing to use your most recent year’s figures if you can demonstrate that the income is sustainable.

Why this is tricky

Most high-street lenders operate on rigid, automated systems that prefer stability. When they see a dip in income, their algorithms often default to a multi-year average, which can significantly reduce your maximum borrowing capacity. They are essentially trying to mitigate risk; they want to ensure that your income isn't just a one-off "good year" but a reliable stream that can cover your mortgage payments, especially with the Bank of England base rate currently at 3.75%.

Furthermore, lenders view "fluctuation" differently depending on the cause. A dip caused by a one-off business investment or a temporary market slowdown is viewed very differently than a downward trend in profitability. If you simply apply to a standard lender without explaining the context, you risk an automated decline based on a lower average figure that doesn't reflect your current earning potential.

How Matthew approaches it

When I look at a case with fluctuating income, the first step is to identify the why. If your income has increased in the latest year, we look for lenders who ignore the previous lower years and focus solely on the most recent set of accounts. This is common for businesses that have recently scaled up or moved into a more profitable phase.

I then assess whether we should present your income as a sole trader (net profit) or as a limited company director (salary plus dividends or salary plus share of net profit). Some lenders are much more generous with how they treat retained profits within a company, which can be a game-changer for directors who keep money in the business for tax efficiency.

Finally, I target lenders who manually underwrite their cases. By providing a clear, professional narrative alongside your SA302s and Tax Year Overviews, we can explain the fluctuations to a human underwriter. This human touch is often the difference between a "computer says no" and a formal mortgage offer.

What you'll need

• SA302 Tax Calculations: The last two to three years of HMRC-issued tax calculations.
• Tax Year Overviews: These must match your SA302s exactly to prove the tax was declared and paid.
• Business Accounts: If you are a limited company director, your last two years of full accounts prepared by a qualified accountant.
• Business Bank Statements: Usually the last 3–6 months to show current trading activity.
• A Written Narrative: A brief, factual explanation of any significant dips or spikes in your income, signed by you or your accountant.
• Proof of Deposit: Standard evidence of where your funds are coming from.

Things to watch for

• The "Average" Trap: Be aware that if your income has dropped in the most recent year, most lenders will use that lower figure, even if previous years were higher.
• Accountant Qualifications: Ensure your accounts are prepared by a chartered or certified accountant; lenders place more weight on professionally prepared figures.
• Debt Commitments: With inflation at 3.1%, lenders are scrutinising committed expenditure more closely. Ensure your personal debts are managed before applying.

Next steps

Every self-employed case is unique, and the "right" lender for you depends entirely on the specific trend of your business income. If you would like to discuss your situation and see which lenders might be a good fit for your specific figures, please book a call with me or chat with Molly to get started.

Important Notice: This article is for general guidance only and does not constitute regulated financial advice. Mortgage criteria and rates change frequently. Always consult a qualified mortgage adviser who can assess your individual circumstances. Your home may be repossessed if you do not keep up repayments on your mortgage.