A strong day rate does not always translate into the borrowing figure you expect. That is the frustration behind many CIS versus PAYE mortgage enquiries: two people may earn similar amounts, yet a lender can assess them very differently because of how their income is paid and evidenced.
For contractors, the answer is rarely to change your working arrangement just to fit a high street lender’s checklist. The better route is to understand how CIS and PAYE income are viewed, then approach lenders whose underwriting reflects the reality of your work.
CIS versus PAYE: the key difference for mortgages
PAYE is the familiar payroll route. Your employer deducts income tax and National Insurance before you are paid, and your payslips show a regular gross salary, deductions and net pay. For many lenders, this is straightforward to assess, particularly where employment is permanent and income is consistent.
CIS, or the Construction Industry Scheme, is different. Contractors in construction may have tax deducted from payments at source, commonly at 20% for registered subcontractors or 30% where they are not registered. Those deductions are payments towards tax and National Insurance, rather than a final calculation of what you owe. A CIS worker may ultimately receive a tax refund, depending on their allowable expenses and overall tax position.
That distinction matters because a CIS payslip can look lower than the income you have actually generated. A lender that simply uses the figure paid into your bank account may understate your affordability. A lender experienced with CIS cases may instead assess the gross amount shown before CIS deductions, subject to its policy and the evidence provided.
CIS does not automatically mean self-employed, and PAYE does not automatically mean permanent employment. Employment status depends on the working relationship and the contract. Mortgage underwriting, however, is concerned with whether the income is sustainable, provable and likely to continue.
How lenders assess PAYE contractor income
If you are paid through PAYE, lenders will usually start with your basic salary. They may also consider overtime, commission, bonuses, shift allowances and other variable pay, but the amount accepted depends on your track record and the lender’s criteria.
For a fixed-term contractor, the challenge is not necessarily income level. It is the expiry date on the contract. A mainstream lender may focus on the lack of a permanent role and take a cautious view, even where you have renewed similar contracts for years.
Specialist contractor lenders can take a more commercial approach. Depending on the case, they may assess affordability from your annualised day rate or contract value rather than relying solely on your taxable PAYE salary. They will commonly want to see the current contract, a history of contracting or relevant industry experience, and enough time remaining on the contract or evidence of an extension.
This can make a material difference for IT professionals, interim managers and other day-rate contractors paid through an umbrella company. Your umbrella payslip may be PAYE, but it should not automatically force you into standard employed-income underwriting.
How lenders assess CIS income
CIS workers often encounter a different problem: their income can appear irregular on paper despite steady, well-paid work. Payment may vary by project, deductions can confuse non-specialist underwriters, and tax returns may show a lower figure after legitimate business expenses.
The right lender may use gross CIS income from payslips or remittance statements, often averaged over a set period. Some will want three months of evidence; others may ask for six or twelve months, bank statements, the latest SA302 tax calculation or a Tax Year Overview. The required evidence varies, which is why applying to the wrong lender first can waste valuable time.
A lender will also look beyond one good month. It will consider the pattern of work, gaps between projects, your trade, the agency or contractor paying you, and whether the income shown is credible and sustainable. Consistency is persuasive, but a short CIS history does not automatically rule out a mortgage. Strong previous employment in the same trade, a new long-term contract or a healthy deposit can strengthen the overall case.
Do not assume a future CIS tax rebate can be treated as mortgage income. Lenders normally assess the income you can evidence now, not a possible refund that has not yet been received.
Which route gives you more borrowing power?
There is no universal winner. PAYE can be easier where your salary is high, your contract position is stable and your payslips clearly reflect your earnings. CIS can be more favourable where gross income before deductions is considerably higher than your net pay and a lender is prepared to assess it correctly.
The important point is that the tax route alone does not determine how much you can borrow. Your deposit, credit profile, monthly commitments, dependants, property type and the lender’s affordability model all matter. A strong income can still produce a disappointing maximum loan if you have car finance, credit card balances, childcare costs or a lender with a restrictive approach to contractors.
Equally, chasing the highest possible multiple is not always the right objective. A mortgage must remain comfortable when contracts change, rates move or you take time between assignments. Good advice balances borrowing potential with a lender that genuinely understands your income and a payment that works for your plans.
Do not change from CIS to PAYE just for a mortgage
It can be tempting to restructure your pay because somebody says lenders prefer PAYE. For many contractors, that can create unnecessary tax consequences and still fail to solve the real issue if the lender does not understand contract-based work.
Changing arrangements shortly before an application can also reduce the evidence available for either income route. A lender may see a new PAYE role, a new umbrella arrangement or a new CIS payment pattern as an incomplete track record. There are situations where a change is right for commercial, employment or personal reasons, but it should not be a rushed mortgage tactic.
A specialist broker can assess your existing position first. Residential Mortgage Hub works with lenders that consider CIS income, umbrella PAYE, fixed-term contracts and limited company remuneration on their own merits, rather than expecting every applicant to fit a permanent salaried model.
Evidence that strengthens a CIS or PAYE application
The best application tells a clear story before an underwriter has to ask questions. For PAYE contractors, that usually means current and previous contracts, recent payslips, bank statements and proof of employment history in the same field. If a renewal is agreed but not yet formalised, supporting correspondence can sometimes help explain continuity.
For CIS applicants, retain your payslips or remittance statements, bank statements and documents showing the gross amount paid before deductions. Your SA302s and Tax Year Overviews may be needed, particularly where a lender works from declared income rather than gross CIS receipts. Keep contracts, invoices and agency details accessible too.
It also helps to prepare a simple explanation for gaps. A short break between projects, annual leave, training or a planned move between contracts is not unusual. It becomes a problem only when the lender cannot see why the gap occurred or what supports ongoing income.
Choosing the right lender matters more than the label
The real CIS versus PAYE question is not which arrangement looks tidier on a generic mortgage calculator. It is which lender will assess your proven income fairly and make a decision that supports your property plans.
Before you apply, have your paperwork reviewed, make sure your credit commitments are accurate, and avoid letting several unsuitable lenders search your file. With the right case presentation, a day rate, CIS payslip or fixed-term contract can be evidence of a valuable and established career, not a reason to accept less borrowing than you need.
