IR35 is a tax framework, but its effects reach well beyond your tax bill. The way you are engaged — inside IR35, outside IR35, through an umbrella company, or under CIS — directly determines how mortgage lenders assess your income, which lenders will consider you, and how much you can borrow.
Most mortgage brokers do not understand IR35 in any meaningful depth. They may know the terminology but lack the lender knowledge to turn that understanding into a better mortgage for you. We have built our service specifically around contractor pay structures, and IR35 expertise is central to what we do.
Mortgage lenders assess affordability based on income specifically on how they can verify, categorise and apply income to their affordability calculations. Your IR35 status determines which category you fall into and which income figures lenders are willing to use.
A contractor outside IR35, working through a limited company on a £600 per day contract, earns an annualised income of £138,000 on standard day rate calculations. But their limited company accounts might show a salary of £12,570 and dividends of £40,000 —a total of £52,570 on paper. The difference between using the SA302 figure and using the day rate annualised figure is enormous, and it directly determines what you can borrow.
The right lender one who understands contractor income uses the day rate. The wrong one uses the accounts. Choosing the right lender, with the right approach for your specific pay structure, is what we do.
Outside IR35 contractors working through a personal service company (PSC) or limited company are typically in the strongest position for mortgage applications. Specialist lenders will annualise the day rate shown on your contract and use that figure as your annual income for affordability purposes.
To qualify for this approach, most lenders require a current contract showing your day rate, continuity of work in the same sector or profession, and a work history that demonstrates consistent earnings over time. Most do not require filed accounts, which removes the delay and undervaluation that accounts-based assessment creates.
Some lenders will also consider net profit plus salary for established limited company contractors who prefer to be assessed on their accounts — useful if your day rate has varied significantly year on year.
Since the 2021 reforms to off-payroll working rules in the public and private sectors, more contractors are working inside IR35 than at any previous point. For mortgage purposes, inside IR35 contractors are treated as employees by their end client for tax purposes — but their income structure is still different from traditional employment.
The key question for lenders is whether they will use the full gross contract value (before IR35 tax deductions) or only the net PAYE take-home to assess affordability. The best contractor-friendly lenders will use the gross figure, effectively treating you in the same way as an outside IR35 contractor. Others will cap the assessment at PAYE earnings, which significantly reduces borrowing capacity.
We know which lenders give the best outcome for inside IR35 applicants and ensure your application goes to the right one.
Umbrella company workers receive PAYE payslips via their umbrella employer, with employer’s National Insurance, holiday pay and umbrella margin deducted before payment. The take-home figure is often substantially lower than the gross contract value — and lenders who only look at take-home pay will undervalue your earnings considerably.
The best lenders for umbrella workers look at the assignment rate or gross contract value and assess affordability on what you earn before umbrella deductions. This gives a much more accurate picture of your financial capacity. We work with several lenders who take this approach and will match you to the right one based on your specific umbrella arrangement and earnings history.
CIS contractors are paid net of deductions — either 20% for registered subcontractors or 30% for unregistered. For lenders who do not understand CIS, this creates a confusing picture: your payslip shows net income that does not reflect your true earning capacity, and the tax element is recovered through self-assessment at year end.
Experienced lenders will gross up your CIS net pay to its correct pre-deduction equivalent and assess affordability on the grossed-up figure. This means CIS contractors can access the same level of borrowing as equivalently-earning non-CIS workers. Not all lenders will do this — we work specifically with those who will.
Sole traders who contract directly without a limited company or umbrella structure are assessed using SA302 forms and tax year overviews. Most lenders require two years of returns, though some will consider one year for contractors with a strong recent earnings profile.
The main challenge for sole trader contractors is that the SA302 reflects taxable profit expenses legitimately claimed against income reduce the figure lenders use for affordability. We work with lenders who take a flexible approach to sole trader income and can consider projected earnings alongside historic figures in some circumstances.
A change in IR35 status does not in itself disqualify you from a mortgage, but lenders will want to understand the change and see that your income has remained consistent. If your take-home has reduced as a result of moving inside IR35, we match you to lenders who use gross contract value for inside IR35 assessment to minimise the impact.
Yes — lenders who assess limited company contractors on accounts rather than day rate will typically consider salary plus dividends, and some will also include retained profit within the company. This approach can be beneficial for contractors with high retained profit but lower drawn income. We advise on which assessment method gives the best outcome for your specific situation.
Variable income is common for umbrella workers and most specialist lenders are comfortable with it. They typically average earnings over three to twelve months rather than requiring consistent monthly figures. We confirm the averaging approach of the specific lender we recommend before submitting your application.
Mixed IR35 status is increasingly common. Lenders handle this differently — some will use the higher or primary income only; others will combine both. We assess your full income profile and identify the lender whose methodology gives you the best result.
With the right lender, no — a grossed-up CIS income assessment gives you the same borrowing capacity as an equivalently-earning employee. The difference lies entirely in lender knowledge. CIS contractors who have been declined or undervalued by other brokers are often surprised by what becomes possible with the right lender in place.