What is contract-based underwriting?
Contract-based underwriting assesses your mortgage on the value of your current contract — your day rate annualised — instead of historic accounts, SA302s or payslips. It’s the foundation that lets contractors borrow on what they earn now — and most specialist lenders, plus several mainstream ones, will assess a case this way even for the newly independent.
The core idea
Rather than looking backwards at filed accounts, a contract-based lender reads the contract in front of you: your day rate, days worked and the engaging company. That figure is annualised — typically day rate × days × 46 weeks — and a multiple applied.
This bypasses the documents that understate contractors: net-profit accounts and minimised SA302s.
Why it exists
High-street algorithms were built for permanent employees and traditional businesses. Drop a contractor into them and you’re forced into a ‘self-employed’ box demanding years of history. Contract-based underwriting, handled by specialist teams, corrects that mismatch.
Who can use it
- Day-rate professionals — IT, engineering, consulting, offshore and more.
- Newly independent contractors, sometimes from day one of a contract.
- Those moving between contracts with a clean recent history.
- It reads your current contract, not historic accounts.
- Income is annualised over 46 weeks, then multiplied (usually 4.5×).
- It opens the door for newly independent contractors.
- Placement with the right lender is what makes it work.
What the underwriter is actually checking
Not just that a contract exists, but that it holds together as evidence. Underwriters look at the rate stated in the document, the term remaining, whether there is a history of renewals, and whether the work described matches the CV behind it. A strong rate on a contract that expires in three weeks with no track record behind it is a weaker case than a modest rate on a fourth consecutive renewal.
Gaps are examined rather than assumed away. A break between engagements is normal in contracting and is not fatal, but an unexplained six-month gap in the bank statements will be raised. The straightforward answer — a project ended, you took time between contracts, here is what you did next — closes it. Leaving it to be discovered does not.
Where cases get declined even with a good rate
Three recurring reasons, none of which are about the day rate itself. The contract wording does not evidence what it needs to — no clear rate, or an agency framework document rather than the engagement itself. The trading structure does not match what the lender expected, for instance a director assumed to be on a day rate but actually drawing from mixed sources. Or the case simply went to a lender whose criteria never covered that income shape.
All three are avoidable before submission, which is the practical argument for packaging rather than applying. A decline leaves a credit footprint you then carry to the next lender, so the cost of guessing is paid twice.
Underwriting, answered
Is contract-based underwriting only for IT contractors?+
No — it suits any professional paid a day or hourly rate against a contract, including engineering, consulting, offshore and medical locum work. The common factor is a clear contract rate to assess.
Do I still need any accounts?+
Often not for the income assessment itself, though some lenders like to see recent bank statements or a short history. The point is that a lack of two or three years’ accounts isn’t the barrier it is on the high street.
How is this different from a self-employed mortgage?+
A self-employed assessment uses net profit from your tax return; contract-based underwriting uses your gross contract rate. For most contractors the latter produces a much higher, fairer figure.
Does a rolling or short contract weaken my case?+
Not necessarily. Lenders comfortable with contract income expect rolling and fixed-term arrangements and will often look at renewal history rather than the length of the current document alone. A first contract with no history behind it is a harder case than a short one that has been renewed repeatedly, but neither is automatically a barrier at the right lender.

