A CIS mortgage versus employed application can look very different to a lender, even when two applicants earn similar amounts. That difference is not about whether a CIS worker is less reliable. It is about how the lender interprets income, what evidence it requests and whether its underwriting team understands the Construction Industry Scheme properly.
For many CIS subcontractors, the frustration starts when a mainstream bank treats them as conventionally self-employed and asks for years of accounts. That can reduce the income it will use, delay a purchase or rule out a lender that would otherwise offer a competitive deal. The right lender may be able to assess recent CIS income in a more practical way, helping you borrow based on what you actually earn rather than an outdated view of your employment status.
Is a CIS mortgage different from an employed mortgage?
A CIS mortgage is not a separate mortgage product with a special interest rate. It is a mortgage application assessed using income earned under the Construction Industry Scheme. You may work regularly for one contractor, have tax deducted at source and receive CIS payment statements, but many lenders will still regard you as self-employed rather than employed.
An employed applicant is usually assessed using payslips, a P60 and, where relevant, an employment contract. Their income is generally straightforward for a lender to verify: a basic salary is paid regularly through PAYE, and bonuses, overtime or commission are considered under the lender’s individual policy.
For a CIS worker, the key issue is that payment statements do not always fit the standard employed-income process. Some lenders want SA302s and tax year overviews, often using declared profit after expenses. Others will assess a proportion of gross CIS income shown on payment statements, supported by bank statements. This can be a significant distinction where legitimate business expenses reduce taxable profit but do not reflect your day-to-day earning capacity.
The best route depends on your work history, income pattern and the paperwork available. It also depends on the lender. Applying to the wrong one first can mean extra credit searches, unnecessary document requests and a lower borrowing figure than your circumstances justify.
CIS mortgage versus employed: the main lending differences
How your income is evidenced
Employed borrowers will normally provide their latest three months’ payslips, bank statements and a P60. A lender may ask for an employment contract if they have recently changed roles or are on a fixed-term contract.
CIS applicants are more likely to provide CIS payment statements, typically covering recent months, alongside corresponding bank statements. Depending on the lender and your circumstances, tax calculations, tax year overviews, accounts or a contract may also be needed. Clean, consistent records matter. Payments should be easy to match to the documentation supplied, and any gaps in work should be explained clearly rather than left for an underwriter to guess.
This does not mean every CIS borrower needs several years of accounts. Specialist lender criteria can be more flexible, particularly where you have a strong history of continuous work and clear evidence of current earnings. Equally, a short CIS history or irregular payments may narrow the options. The aim is to present the strongest accurate case, not force your income into a box that does not fit.
How much income a lender uses
This is often the biggest practical difference. A standard self-employed assessment may focus on net profit or an average of recent tax years. That approach can be sensible for some businesses, but it is not always the fairest measure for a CIS subcontractor whose income is steady and whose expenses are modest or tax-efficient.
Certain lenders can use gross CIS income, subject to their policy and evidence requirements. Others may take an average over a defined period. They will still run a full affordability assessment, looking at committed borrowing, household costs, dependants, credit commitments and the mortgage term. A higher income figure does not automatically mean a higher loan, but it can materially improve the starting point.
For employed applicants, lenders may use 100% of basic salary and a percentage of variable pay. A worker with a large overtime, bonus or commission element can face a similar challenge to a CIS applicant: the lender must be satisfied the income is sustainable. The difference is in the proof required and which lenders are prepared to take the right view of it.
Employment history and contract continuity
Permanent employment can be simple to explain, but it is not the only income type lenders accept. CIS workers frequently move between contracts while maintaining steady demand for their skills. A lender that understands the sector will look beyond a single contract end date and consider the wider pattern of work, experience and future pipeline where its criteria allows.
A recent move to CIS is more nuanced. If you have left a PAYE construction role to become a subcontractor, your previous experience can help demonstrate continuity in the same trade. However, lender appetite will vary considerably. Some need a longer CIS track record, while others may consider applicants earlier if the evidence is strong.
Deposit, credit profile and property type
Being paid through CIS does not remove the normal mortgage rules. Deposit size, loan-to-value, credit history, age, property construction and the type of purchase all affect the products available. A CIS worker with a 15% deposit and clean credit may have a far wider choice than an employed applicant with a 5% deposit and recent adverse credit.
The same is true for remortgaging. If your current lender will not recognise your latest CIS income fairly, it is worth checking the wider market before accepting a product transfer. Staying put can be convenient, but convenience is not always the best financial outcome.
When an employed application may be stronger
There are circumstances where employed status makes an application easier. A long-term permanent role, a simple salary structure and a clean three-month payslip history can meet high-street criteria with minimal questions. If the lender’s borrowing calculation already gives you what you need, there may be no advantage in pursuing a more specialist route.
CIS treatment may also be less helpful if payments are inconsistent, your tax position is not up to date or there are unexplained gaps between contracts. Specialist underwriting is not a shortcut around affordability checks. It is a way to make sure the assessment reflects your genuine earning position.
If you are paid via a limited company rather than directly under CIS, the assessment changes again. Salary, dividends and retained profit need to be considered under limited company criteria. Do not assume a lender that works well for CIS income will automatically be the right lender for a company director.
How to prepare a stronger CIS mortgage application
Before an Agreement in Principle, gather your recent CIS payment statements and make sure they reconcile with the credits showing on your bank statements. Keep your tax documents available, including SA302s and tax year overviews if submitted. If you have a current contract, retain a copy, along with evidence of renewals or ongoing work where relevant.
It is also sensible to review your credit file and avoid taking new finance shortly before applying. Car finance, credit cards and buy now, pay later commitments can reduce affordability, even where monthly payments seem manageable. A broker should calculate borrowing with your real commitments included, rather than offering a headline figure that falls apart at full application.
A specialist broker can then identify lenders that accept CIS income in the most suitable way for your case, compare the total cost of the available products and package the evidence before it reaches an underwriter. Residential Mortgage Hub works across the market to match contractor and CIS applications with lenders that understand non-standard income, rather than asking clients to restructure how they are paid.
Choose the lender that recognises your real income
The right question is not whether CIS is better or worse than being employed. It is whether the lender you approach has a fair, proven way to assess your income. With the right evidence and lender selection, CIS status does not have to restrict the home you can buy or the remortgage options you can consider.
If a bank has reduced your income to a figure that does not reflect your current work, do not assume that is the final answer. A properly assessed application can give your earnings the recognition they deserve.
