A contractor’s income may depend on current contracts, renewal expectations and gaps between assignments. Comparing mortgage offers requires an accurate picture of those arrangements and the applicant’s other obligations.
The structure behind the offer
Contract income needs evidence of amount and continuity. A current rate and a future-income assumption should not be treated as identical.
Rate, fees and the cost over the chosen period
Compare offers using the same borrowing amount, valuation assumption and intended deal period. Show upfront charges and any fees added to the loan. Where terms differ, compare the remaining balance as well as payments, so a lower instalment is not mistaken for a lower total cost.
| Comparison item | Question to resolve |
|---|---|
| Contract history and remaining duration | How does this lender assess contractor income? |
| Business structure and income evidence | Which contract and trading records are needed? |
| Periods without work and personal commitments | How are breaks between assignments considered? |
Ask for the offer assumptions to be explained in writing. A calculator or initial illustration should be kept separate from an underwritten offer and completion conditions.
The decision that deserves the closest review
Ask what the lender uses to assess earnings and continuity. Supply contract details, trading records and evidence of periods without work. Do not assume every lender multiplies a day rate in the same way.
Documents and assumptions to organise
Organise borrower identity, income or trading information, existing borrowing and the property documents relevant to the enquiry. Show where the deposit and transaction cash come from. Ask the lender or broker for the precise evidence list and identify outstanding legal or valuation conditions.
Explain contract continuity as well as the current rate
Organise contracts, payment records and the timeline of work, including gaps or changes in the engagement model. Show how income reaches the borrower and identify relevant company or payroll arrangements. This allows the adviser to discuss an evidence route that matches the contractor’s actual position.
Ask lenders to explain the assumptions used in their assessment and compare products on a consistent basis. Test the household budget with a work gap, keeping contingency cash separate from the deposit. A current day rate is useful evidence, but it should not be turned into guaranteed future receipts.
Keep the UK borrower, property use and transaction assumptions consistent across the broker, lender and legal enquiries.
A hypothetical example
A contractor has a high current rate but a contract nearing its end. It explains renewal evidence and cash reserves before using the current daily rate as a long-term affordability assumption.
A mistake to avoid
Treating one active contract as proof of uninterrupted future income.
Completion, ongoing commitments and the next decision
List the conditions that remain before funds can be released and allow for realistic legal and valuation timing. After completion, record payments, review dates and any limits on changes to the property or borrowing. Keep a plan for the next deal expiry rather than treating the first offer as a permanent arrangement.
Questions before choosing
Can a broker compare different assessment methods?
Ask for an explanation of the evidence and assumptions used in each actual lender enquiry.
Will multiplying a day rate by a full working year establish borrowing capacity?
Ask how the lender assesses the evidence. Contract duration, actual work pattern and other factors can make a simple calculation incomplete.
Sources and further reading
Research date: 6 October 2026. Refer to the current linked guidance and written provider or adviser terms when making a decision.