Contractor mortgage income assessment is where most applications go wrong. The lender uses the wrong methodology, produces a lower figure than your income justifies, and you get declined or offered less than you should qualify for.
The lender looks at your limited company accounts and takes your director's salary plus dividends drawn. Standard income multiple (4–4.5x) is then applied to that combined figure.
The problem: many contractors pay themselves a low salary and retain profits in the company. The accounts understate real income. You may be billing substantially more than your drawings reflect — and the lender will never see it.
The lender takes the day rate from your current contract, multiplies by 46 or 48 weeks to produce an annualised income figure, and applies an income multiple to that.
This reflects what you actually earn, not what you choose to draw. The same contractor on the same income gets a materially higher assessment — because the methodology is correct.
The difference is not marginal. On the same income, the same contractor can be assessed at £225,000 or £655,500 depending solely on which lender they use and which method is applied. That's a £430,000 swing — not from borrowing more, but from being assessed correctly.
Not all do. Some high street lenders will only use salary and dividends regardless of how the case is presented. Others offer contractor-specific products through intermediaries that apply day rate methodology correctly.
This is why lender selection — not just rate comparison — is the primary job of a contractor mortgage broker. A broker who places every contractor case with the same lenders they use for PAYE clients will consistently underserve contractor applicants.
The lenders who offer competitive day rate assessment change over time as product ranges evolve and appetite shifts. Whole-of-market access is essential — not a single-panel or tied arrangement.
Requirements vary by lender. A contractor mortgage broker manages this package — here's what is typically involved.
Shows day rate, end date, and client. This is the primary income evidence for day rate assessment. Without a current contract, day rate methodology cannot be applied.
Demonstrates the contracting career history that justifies the income. Lenders want to see that the day rate is sustainable — a CV showing consistent work in your field does this.
Personal bank statements (typically 3 months) and sometimes business bank statements. Standard lender requirement — shows that contract payments are being received consistently.
Some lenders require 2 years of company accounts; others applying pure day rate assessment do not. This is one reason why lender selection matters — accounts requirements vary significantly.
Day rate assessment applies cleanly. The lender takes your contract day rate, annualises it, and applies a multiple. Your company structure and the way you draw income does not affect the assessment basis.
This is the most straightforward case for a specialist contractor lender.
The assessment basis changes when you're operating inside IR35 through an umbrella company. Lenders typically assess on gross PAYE income from payslips rather than a contract day rate annualisation.
This usually produces a lower income figure than outside IR35 day rate assessment — because umbrella payslips reflect income after employer NICs and margin deductions. Borrowing capacity is typically lower as a result.
A CEST determination doesn't directly affect mortgage assessment — the payment structure is what matters.
Tell us your day rate and contract structure. We'll tell you exactly what you can borrow and which lenders will assess you correctly. No obligation, no hard credit search at this stage.