Not everyone earns a straightforward salary. Many people have income that varies month to month or comes from more than one source. This can make getting a mortgage feel more difficult. But complex income doesn’t have to be a barrier.

It’s vital to understand what counts as complex income, how lenders assess it, and what you can do to improve your chances of approval. This guide has got you covered; let’s dive in.

What is a complex credit mortgage?

The term ‘complex mortgage’ is used by lenders and brokers to describe applications that fall outside standard criteria. This can mean different things.

Complex credit

This refers to applicants with a mixed or imperfect credit history. Examples include missed payments, defaults, or CCJs. A standard lender may decline these. A specialist lender may still consider them.

Complex income

This covers any income that doesn’t fit neatly into a standard salary. Overtime, bonuses, commissions, and second-job income all fall into this category. So does self-employment, freelance work, and director income.

Variable income

Variable income is any money you earn that changes monthly. Commission-only roles, zero-hours contracts, and seasonal work are common examples. Lenders find this harder to assess because they can’t rely on a fixed monthly figure.

Adverse credit

Some applicants have both complex income and a difficult credit history. This combination makes it harder to find a lender on the high street. Specialist lenders look at the full picture rather than declining based on a single factor. For more on this, read our guide on getting a mortgage with adverse credit.

What is complex income?

Complex income is any income that’s not a straightforward fixed salary from a single employer. Here are the most common types:

  • Overtime. Regular overtime is often included by lenders, but only if it’s consistent. Most lenders want to see at least 12 months of overtime payments. Some will use an average over two years.
  • Bonus. Annual bonuses can be included, but lenders usually average them over two years. If your bonus is guaranteed, some lenders treat it more favourably. If it’s discretionary, they may only use a portion of it or exclude it entirely.
  • Commission. Commission income is variable. Lenders typically want to see at least one to two years of commission payments. They’ll typically use an average to calculate what they’re willing to lend.
  • Second job income. If you have a second job, some lenders will count this income. Others will not. Those who do usually want to see that the second job has been held for at least 12 months.
  • Self-employment. Sole traders and limited company directors are assessed using their accounts and tax returns. Most lenders want at least two years of trading history. Some specialist lenders accept one year.
  • Freelance and contract income. Day rate contractors are sometimes assessed on their contract rate rather than their accounts. This can work in their favour if their day rate is strong, but their declared profit appears low.
  • Investment or rental income. Some lenders will count income from investments or property alongside employment income. The rules vary significantly between lenders.

 

Will my complex income affect a mortgage application?

It can, but it doesn’t have to stop you from getting a mortgage. The impact depends on the type and consistency of your income and which lender you apply to.

High street lenders often use automated systems. If your income doesn’t fit a standard format, these systems may flag your application or decline it outright. They’re built to process straightforward cases quickly.

Specialist lenders assess cases manually. An underwriter looks at your application and makes a decision based on the full picture. This takes longer, but it means your income is understood rather than filtered by a computer.

The key question lenders are trying to answer is, can this person reliably afford the monthly payments? If you can demonstrate that your income, even if variable, has been consistent over time and is likely to continue, that goes a long way.

How can I get a mortgage with complex income?

There are practical steps you can take to give yourself the best chance.

  • Gather your evidence. Payslips, P60s, bank statements, and tax returns are your main documents. The more consistent evidence you have of your income over time, the better. Aim for at least 12 months of records – 24 if possible.
  • Don’t suppress your income. Self-employed applicants sometimes minimise their declared profit to reduce their tax bill. This can backfire when applying for a mortgage. A higher declared income generally leads to a higher maximum loan.
  • Keep your accounts in order. If you’re self-employed, make sure your accounts are prepared by a qualified accountant and are up to date. Lenders want to see complete and credible records.
  • Check your credit file first. Before you apply, review your credit report. Fix any errors. Know what a lender will see. If there are issues on your report, a specialist broker can factor this into which lender to approach.
  • Work with a specialist broker. A broker who deals with complex income cases regularly will know which lenders are most flexible and how to present your application in the strongest way. This is the most important step for many complex income applicants.

 

Are there other types of complex mortgage?

Yes. Beyond complex income, there are other situations that make a mortgage application non-standard.

  • Non-standard construction. Some property types are harder to mortgage. Timber-framed homes, properties with flat roofs, or non-standard materials can limit your lender options.
  • Older applicants. Some lenders have maximum age limits at the end of a mortgage term. Specialist and later-life mortgage products exist for applicants who fall outside standard age criteria.
  • Foreign nationals. Applicants who aren’t UK citizens or who have lived in the UK for fewer than two to three years may face additional criteria from some lenders.
  • Adverse credit. Missed payments, defaults, CCJs, and previous repossessions are all examples of adverse credit that can complicate an application.

 

In all of these cases, the approach is the same: go to a specialist lender or broker rather than applying directly to a high street bank.

Get expert mortgage advice

If your income is complex, the right broker makes a significant difference. A specialist broker does several things that you can’t easily do yourself.

They know which lenders will consider your type of income. They know how to present your application so that your income is understood and counted correctly. And they can approach lenders using a soft search, which doesn’t leave a mark on your credit file, before committing to a full application.

Applying to the wrong lender is not just frustrating. Each declined application can make future applications harder. A broker who knows this market protects you from that risk.

Final thoughts

Complex income doesn’t mean you cannot get a mortgage. It means you need the right lender and the right approach.

Document your income clearly. Get your accounts in order. And work with a specialist broker who understands your situation. These three steps make the biggest difference.

Pepper Money works with specialist brokers who understand complex income applications. You can find a broker through us today.