Complex Income Mortgage

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Meet the Author

Elliott Culley

Knows about: Complex Income Mortgage

Job Title: Director & Mortgage Adviser

10 years experience in financial services

Qualifications: CII CF1 | CII CF6

Complex Income Mortgage (Part 1)

Elliot Culley talks to us about mortgages for those with complex income.

What is considered as complex income with mortgage applications in the UK?

Complex income for a mortgage can include quite a few different types of income. Essentially, not all lenders treat income outside of your basic salary the same.

Complex income could include bonuses, commission, overtime, working in two roles, locum income, income from investments, rental income, and potentially benefit income as well.

How do lenders assess different complex incomes and how do they impact the mortgage assessment process?

Mortgage lenders all assess complex incomes differently. For example, if you earn commission, you may find one lender will use 50% of that income over a 12-month period, whereas another may take a higher percentage – potentially 75%, provided you can show consistency over a longer period of time.

Some mortgage lenders don’t allow certain incomes to contribute towards affordability at all. So you can often find that the amount of borrowing you can get is wildly different with each mortgage lender. So it’s really worth checking with a few lenders to decide.

What documentation and evidence do I need to provide to prove my complex income?

It does depend on the type of income, but the majority of lenders want to see consistency. For example, with overtime, lenders will look at the income on your last three payslips, but they will also look at your P60 or year-to-date figure to see if that’s consistent with the rest of the year.

If you have commission paid on a quarterly basis, lenders will likely want to see your last four commission payslips at the very least. If you’re working two separate roles, lenders want to see sustainability – they will want you to have been in both roles for six months, although some may look at just three.

The key point is that whatever the income is, lenders need confidence that the income will be sustainable for the duration of that mortgage.

What challenges might arise during the mortgage application process when declaring complex income?

Because all lenders treat that complex income differently, finding the right lender for your circumstances is probably the most challenging part. You’ll want to find the most suitable rate available but also the right amount of borrowing.

The difference in borrowing capacity between lenders can be really huge. So it’s important not to just speak with one lender, but approach quite a few because those figures change significantly. You don’t simply need to find the right rate, because that lender might not be offering you the right amount for your circumstances.

How do I improve my chances of getting approved for a mortgage with complex income?

Consistency of income can really improve your chances of approval. Lenders can get worried if one month you’re earning really high commission or overtime, and the next month is very low in comparison.

Without consistency, the lenders may just take 50% of that income, to reduce the risk, or not even take the income at all. Making a lender feel confident in the income is really important in maximising your borrowing capacity.

Do many mortgage lenders specialise in mortgages for customers with complex income?

Many lenders do specialise in offering mortgages when you have complex income. But many high street lenders can also support some of the complex incomes I’ve mentioned. They might just not take 100% of those incomes, or want proof of sustainability over a longer time.

Specialist lenders may take lots of different types of incomes and combine them all together. They could be helpful if you really did have lots of different types: commission, bonus, perhaps rental income and a second job. Or, if you haven’t earned some income types for very long, you may need a specialist rather than a high street lender.

How can I calculate my borrowing capacity when I have complex income? Does it differ from regular income?

I would class regular income as your basic salary, and every lender will take 100% of that. The lender will take that basic pay as the starting point.

How other income such as bonuses, commission or overtime is treated will depend on the lender. Some will take 50%, some could take 100%, some could take 65%. It really can differ.

Most lenders then take that total combined figure and multiply it by 4.5 to get you a total borrowing figure. Some lenders can go higher than this. If your income totals more than a certain amount, that might trigger them to multiply your income by five, increasing the amount they will be willing to lend to you.

Bear in mind that they’ll also take your credit commitments into account, and any dependents as well. That can then reduce the total borrowing figure down a bit.

How can a mortgage broker help here? Anything else you’d like to add?

Preparation is very key here. I’ve helped clients before who have been earning commission, but perhaps haven’t yet received that for long enough. They wanted to understand more about the differing borrowing amounts with various lenders.

Speaking to an advisor can be really helpful in this situation, because the amount you can borrow really does differ from lender to lender. We save you a lot of time – you won’t need to go through the same conversations with different lenders to get that figure.

We make it much quicker and simpler to explore all your options and decide how to proceed.

Key Takeaways:

  • Complex income includes bonuses, commission, overtime, income from two roles, locum income, investments, rental income, and potentially benefit income.
  • Mortgage lenders vary significantly in how they assess complex income, with some taking as little as 50% of income like commission or not allowing certain incomes at all.
  • Lenders prioritise consistency and sustainability of complex income, often looking at your P60 and multiple payslips to maximise your borrowing capacity and improve your chances of approval.
  • While many high street lenders can support some complex incomes, alternative lenders may be necessary if you have many different types of complex income to combine or if you have not earned some income types for very long.
  • Speaking to a mortgage broker is key; they can quickly explore all your options and save you time by comparing the differing borrowing amounts available from various lenders.


YOUR HOME MAY BE REPOSSESSED IF YOU DO NOT KEEP UP WITH YOUR MORTGAGE REPAYMENTS.

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Contact us today for expert advice and guidance on your unique mortgage and property needs. We will work with you on a one-on-one to basis to help you find the right solution for your needs.  

With our experience you can rest assured that you are in good hands when it comes to securing the financing you need for your property.

Complex Income Mortgage (Part 2)

Elliott Culley continues the conversation on complex income mortgages.

If I’ve only been trading for one to two years, are there lenders who will consider me?

If you’re self-employed and have been trading for less than two years, it’s still possible to get a mortgage, although not all lenders will be able to assist.

The majority of lenders want to see at least two years’ figures, but some are willing to consider just one year’s trading.

If, prior to becoming self-employed you were working in the same industry, this gives some lenders the confidence to approve you. Other lenders will be happy provided you have one year’s figures.

Mortgage rates sometimes can be a little bit higher as a result, but it’s possible. Once you’ve got two years, the options open up for you. How those figures look will influence where we go with it.

My income is structured for tax efficiency. Will that reduce my borrowing power?

Whether you’re a sole trader or limited company, a lender will only use the income or profit earned after expenses. Whatever your tax documents show will be what the lender can use.

If you’re trading as a limited company, lenders can either look at the salary and dividends or salary and net profits – both bases are covered there.

My income fluctuates year to year. How will that affect how much I can borrow?

You will still be able to get a mortgage. Mortgage lenders look for consistency, so if your income has dropped, they may ask why this is.

If it has increased a significant amount, a lender may also want to know the reason, and may decide to use an average figure as a result. As long as we can answer those questions with valid explanations, lenders will be happy to provide a mortgage for you.

Will lenders look closely at my personal spending?

Mortgage lenders are mainly interested in your credit commitments – your loans, credit cards, student loans, childcare costs and family dependents.

Normal expenditure such as gas, electricity and council tax will be factored in automatically, using average figures for households in your region.

However, if you overspend or fall into an overdraft each month, that may factor into a lender’s assessment. You do want to show good financial conduct, because lenders can look at anything and everything when making their decision.

If I own properties through a limited company, can that income count?

If you own properties through a limited company, yes, you can utilise that income towards your residential mortgage purchase.

Most borrowers in this situation take a dividend from that company each year, and that’s how a lender wants you to prove the income. It won’t be based on the gross rent, although they might look at the net profit in the company if you’ve had it for a long enough time. The majority, though, would use the income from a dividend.

Can investment or Trust income be included?

Yes, mortgage lenders can accept investment and Trust income. You will need to show consistency of that income and that it will be sustainable over the term of the mortgage.

Some lenders may only use 50% of that income to offset the risk.

Other lenders can be comfortable with using 100% of the income. You may just need a little bit more evidence. Most ask you to evidence the income over at least a year, or potentially two, via tax calculations.

I receive dividend income. Will that be accepted?

Yes, dividend income can be used provided you’re a director of a limited company. They’ll ideally want your shareholding to be more than 20% to 25% to use that income.

Most lenders want to see a track record of that income being received. Again, you would ideally have two years’ tax calculations to provide that.

What about maintenance payments or other secondary income?

Maintenance payments can be used by lenders towards your income, as long as you can show you’ve been receiving them for at least three months. They will use an average over that time period.

They will ask you for the last three months’ bank statements. If the child maintenance shows on those, we can use it towards the mortgage. That’s the same if it’s court ordered – you still need to provide three months’ bank statements.

Other allowable income can include child benefit, disability living allowance or carer’s allowance. Lenders will want to see the latest letter detailing the amount you receive.

It does depend on the rest of the case – lenders often want to see another income there, like an employed or self-employed income from another source.

Should I avoid taking dividends or large withdrawals before applying?

Ultimately, the lender will look at your last two years’ figures if you’re using self-employed income. You can take a dividend or withdraw funds as long as the business is still trading and the accounts aren’t completely empty. There isn’t an issue with you doing that.

If they saw a large transaction on the bank statement, they may ask questions about it, but if the reasons are legitimate, it should be fine.

Any final thoughts, or have we covered all that we can?

Just that preparation is the key here, especially if you have a complex income. Make sure you know exactly what you can use and when. A mortgage advisor will help you work out what you can borrow and, if you need to wait for a couple of months, how best to get ready.

Key Takeaways:

  • Mortgages are possible for self-employed individuals with only one year of trading figures, especially if they have prior experience in the same industry, though two years of figures opens up significantly more options.
  • A lender will base your borrowing power on the income or profit earned after expenses, as demonstrated in your tax documents. For limited companies, lenders commonly review salary and dividends or salary and net profits.
  • If your income fluctuates year to year, you can still get a mortgage, but you must be prepared to offer valid explanations for any significant increases or drops, as lenders prioritise consistency and may use an average figure.
  • While lenders automatically factor in normal household expenditure, they pay close attention to credit commitments such as loans and credit cards. Showing good financial conduct, such as avoiding continuous overspending or falling into an overdraft, is crucial for a favourable assessment.
  • Lenders can accept various types of secondary income, including dividend income (if you are a director with a suitable shareholding), investment/Trust income, income from properties owned through a limited company, maintenance payments (with three months of statements), and certain benefits such as child or carer’s allowance.


Your home may be repossessed if you do not keep up with your mortgage repayments.

There may be a broker fee charged for our services.

For specialist tax advice, please refer to an accountant or tax specialist.

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