Last reviewed: June 2026
TL;DR- Contractors are assessed differently by different lenders - some use the standard self-employed approach (accounts and SA302s), while contractor-friendly lenders use the day rate method.
- The day rate method calculates annualised income from the daily contract rate (e.g. day rate x 5 x 46 or 48 weeks), which typically produces a higher assessable income than accounts-based assessment.
- Most contractor-friendly lenders require the current contract to have at least 4-6 weeks remaining and a history of contract renewals in the same field.
- IR35 status affects how income is structured but does not prevent mortgage applications - lenders assess income received, not employment status.
The Contractor Mortgage Challenge
Contractors who operate through a limited company or as self-employed individuals often find that standard income assessment methods understate their true earnings. A contractor operating through a limited company may draw a low salary and retain profits in the company, resulting in a low assessable income under the standard salary-plus-dividends approach even though their day rate is high. Similarly, using accounts-based assessment may not reflect the contractor's current contract rate if earnings have grown recently.
A subset of mortgage lenders - often referred to as contractor-friendly lenders - have developed underwriting approaches specifically designed to assess contractor income more accurately.
The Day Rate Method
The day rate method calculates annualised assessable income directly from the contractor's current daily contract rate, without reference to accounts or tax returns. The most common calculation is: day rate x 5 (days per week) x 46 or 48 (working weeks per year). A contractor on a day rate of £500 would have an annualised income of £500 x 5 x 46 = £115,000 under this method.
Lenders using the day rate method typically require:
- A copy of the current contract showing the day rate and end date.
- The contract to have a minimum remaining term of 4-6 weeks at the time of application.
- A track record of contracting in the same field - typically evidenced by previous contracts or two years of contracting history.
- Bank statements showing contract income received.
Inside vs Outside IR35
IR35 is HMRC's off-payroll working legislation. Contractors working inside IR35 are treated as deemed employees for tax purposes and pay income tax and National Insurance through their agency or end client's payroll. Contractors outside IR35 retain the ability to work through a personal service company and pay themselves through salary and dividends. IR35 status affects the tax and income structure but does not change the underlying day rate or the contractor's eligibility for a mortgage. Lenders assess the income received rather than the employment status determination. Contractors inside IR35 paid through payroll will have payslips as evidence of income, which some lenders find easier to assess than contract-based income.
Documentation for Contractor Mortgages
Depending on whether the lender uses the standard self-employed or day rate approach, documentation typically required includes:
- Current contract and any renewal letters.
- Previous contracts covering the last 12-24 months (to demonstrate continuity of contracting).
- Bank statements showing contract income received (personal and/or business).
- SA302 and tax year overviews if accounts-based assessment is used.
- Certified accounts if the lender requires them.
Frequently Asked Questions
What if my current contract is about to end?
Most contractor-friendly lenders require the current contract to have at least 4-6 weeks remaining at application. If the contract ends before mortgage completion, lenders typically require evidence of a new contract or renewal. A gap between contracts is not automatically a problem if the contractor has a strong track record of renewal in the same field and the gap is short.
Can I get a contractor mortgage with only one year of contracting history?
Some specialist lenders consider contractor applications with less than two years of history, particularly where the individual was previously employed in the same professional field. The day rate method may still be used, but criteria are typically stricter and lender choice more limited. A specialist broker with contractor mortgage experience is best placed to identify current options.
Does working through an umbrella company affect my mortgage application?
Umbrella company workers receive a PAYE payslip from the umbrella company, which makes income verification straightforward for lenders. However, the payslip income includes employer National Insurance and other deductions, so the net pay may differ from what the contractor expects. Lenders assess the payslip income net of deductions. Some lenders also accept umbrella payslips alongside the underlying contract to verify the day rate.
Is a contractor mortgage the same as a self-employed mortgage?
Not always. Self-employed mortgages use accounts and SA302s to verify income. Contractor mortgages may use either the self-employed approach or the day rate method, depending on the lender. The day rate method is unique to contractor-specific lenders and typically produces a higher assessable income for contractors with high day rates but modest drawings from their company.
