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Aipedia: Mortgage brokers
AI can read tax calculations and company accounts quickly, but a broker remains responsible for how a self-employed or contractor borrower's income is presented. Lenders treat complex income in very different ways, so a misread figure can send the case to the wrong lender.
Part of: AI in Mortgage brokers
In short
Self-employed borrowers, contractors, company directors and limited company landlords are where brokers add most value, and where AI document and income tools are most tempting. Tools extract figures from SA302s, tax year overviews, company accounts and contracts, then calculate income on different lender bases. Errors include confusing salary and dividends with retained profit, picking the wrong year, misreading a day rate or mixing personal and company figures. The result can be a wrong lender, a failed application or an unaffordable loan. COCON 2.1.2R and the Consumer Duty apply, and PI usually responds to negligent specialist advice, subject to the terms.
Document tools read tax calculations, tax year overviews, accountants' certificates, company accounts and contractor agreements. Some calculate income on several bases, such as latest year, two-year average, salary plus dividends, or salary plus share of net profit, and match each to lenders that use that basis. For limited company landlords, tools may analyse rental portfolios and stress calculations. The adviser then picks the lender and the income figure to present.
FS25/6 records respondents' view that "human judgement remains essential, especially in complex cases" (paras 4.22 to 4.23). Complex income is the clearest example in mortgage advice.
Illustrative scenario: a company director provides two years of company accounts and personal tax calculations. The AI tool extracts the company's net profit before tax and presents it as the director's income on a net profit basis, without allowing for the director's shareholding, which is half the company. The broker places the case with a lender that uses net profit, and the application fails at underwriting when the lender recalculates. By then the borrower has lost the property they were buying.
Other problems include taking the wrong tax year, treating a one-off gain as recurring income, misreading a contractor's day rate or weeks worked, and failing to spot a falling trend that some lenders will not accept. In the other direction, a tool may understate income and steer the borrower to a more expensive specialist lender when a mainstream lender would have accepted them, which raises value questions under the Consumer Duty.
Tools also struggle with what is not in the documents. Accounts will not show that a major contract has just ended, that a contractor is about to move inside IR35, or that a landlord is selling part of a portfolio. These are the facts an adviser learns by asking, and they often matter more than the extracted numbers.
A claim that a broker negligently presented income or chose the wrong lender for a complex case is a standard advice claim. A policy meeting MIPRU 3.2.4R must cover legal defence costs and Ombudsman awards, and insurers usually focus on whether the advice met a reasonable standard, subject to the terms. Losses can include wasted fees, a higher rate elsewhere and, in some cases, a lost purchase.
Insurers may ask what proportion of business involves specialist lending, including limited company buy to let. Describe it accurately, including how income calculations are checked. See PI insurance for mortgage advisers.
Apex arranges PI for mortgage brokers including specialist and complex income advisers, and can help describe your specialist work accurately to insurers. See the mortgage broker AI hub.
A tool can speed up the calculation, but the adviser remains responsible for the figure presented to the lender. Complex cases need the figures checked against the source documents and the lender's own income basis.
The borrower may be steered to a more expensive lender or a smaller loan than they could have obtained. That can still lead to a complaint, because the advice may not have been suitable or good value for the borrower.
For complex cases it often helps. An accountant can confirm shareholding, the split between salary and dividends, and whether retained profit is available, which reduces the risk of a tool misreading the accounts. Some lenders ask for an accountant's certificate anyway.
Insurers may ask about the share of business involving specialist lending, such as complex income or limited company buy to let, and how it is checked. Accurate answers at renewal help avoid problems if a claim is made later.
Tell us about your firm and the work you do. A broker will review how your current PI treats AI-assisted work, or arrange new cover. No fee for a quote. Or call 0117 325 0027.
Start a PI quote Request a callbackApex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority. Registered in England and Wales, company number 07014570. This page is general information about how AI is used in the profession and how insurance may respond. It is not legal, regulatory or insurance advice on your circumstances, and it does not guarantee that cover will be available or on what terms.
