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Residential mortgages · Client case study

Borrowing confirmed in principle for a £1m home search using salary and bonus income

A professional couple needed a lender whose affordability model could reflect substantial variable remuneration without losing sight of long-term repayment sustainability.

Bonus income High-value home purchase 37-year repayment term
Steve Verrell, Willow Private Finance adviser
The adviser behind the case

Steve Verrell

Steve reviewed the couple’s salary, bonus history, existing property ownership and purchase range together, then modelled a lending structure around the way suitable lenders would assess that income.

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The case at a glance

The challenge
Strong professional earnings, but borrowing capacity depended materially on how a lender treated recent and performance-related bonus income.
The recommendation
A mainstream residential lender with a suitable variable-income approach, modelled across three purchase scenarios on a 37-year capital repayment basis.
The status
Affordability was confirmed in principle at the required level, with capacity indicated beyond the borrowing needed for a £1 million purchase.
01 / The challenge

High earnings did not create one simple affordability figure.

The couple were in their early thirties and wanted to buy their first home together, with a search range up to £1,000,000. They had a strong deposit, established professional careers, no adverse credit history and no unsecured borrowing beyond a student loan.

The complication was how much of their remuneration a mortgage lender would actually recognise. Both applicants received bonus income, but the evidence behind those bonuses was not identical. One applicant had only recently started receiving performance-related bonuses, while the other received a higher basic salary alongside profit-related and performance incentives.

  • Recent variable earnings A bonus can be economically meaningful without fitting every lender’s required evidence period or affordability methodology.
  • A higher purchase range As the borrowing requirement rises, small differences in the percentage or history of variable income accepted can materially change the available mortgage amount.
  • Existing shared property ownership One applicant already owned a mortgage-free property jointly with family members, so the lender needed a clear picture of the ownership position and future housing arrangements.

The question was therefore not simply whether the household income looked strong. It was which lender would assess the sustainable income in a way that matched the clients’ circumstances.

02 / The recommendation

Match the income profile to the lender before choosing the product.

Steve compared routes that relied mainly on basic salaries with lenders prepared to consider relevant bonus earnings where the evidence and employment context supported doing so. The preferred route remained within the mainstream residential market, avoiding a more specialist solution where it was not necessary.

  1. Map salary and bonus income against lender methodology

    Separate fixed pay from variable remuneration and identify which lenders could assess the evidenced income appropriately rather than applying one generic income multiple.

  2. Model three purchase scenarios

    Test different borrowing requirements as the property search progressed, including the effect that a modest reduction in loan size could have on affordability and product availability.

  3. Use a 37-year capital repayment term

    Structure the mortgage so the debt was scheduled to be repaid before the clients’ anticipated retirement age, while keeping the required monthly payments sustainable.

The recommendation was modelled before a specific property purchase completed. No mortgage rate, loan amount or lender name is disclosed in this case study.
03 / Why the structure fitted

The lender’s income methodology mattered as much as the headline rate.

A basic-salary-only approach would have simplified the application, but it could also have understated the borrowing capacity supported by the clients’ overall remuneration. The recommended lender was able to consider the broader employment and income picture while still applying a mainstream residential affordability assessment.

This is the central issue with professional bonus income: the same household can receive materially different borrowing calculations from different lenders because evidence periods, averaging methods and the proportion of variable pay accepted are not identical. Willow’s complex-income mortgage guide explains how salary, bonus, commission and other non-standard earnings can be assessed differently.

The proposed structure also preserved practical flexibility. The selected options allowed for permitted annual overpayments and potential portability, subject to the product terms in force when those features were used. That mattered because the clients were at an early stage of home ownership and their future plans could change over a long mortgage term.

04 / Recommendation status

Affordability confirmed in principle before the property decision.

Following the affordability assessment, the lender indicated that the borrowing required for the clients’ target purchase range was achievable in principle. The assessment also indicated capacity beyond the amount they expected to need for a £1 million purchase.

That gave the couple a clearer financing range for their property search without treating the maximum available figure as a spending target. The recommendation remained anchored to sustainable monthly commitments, the planned repayment term and the clients’ preference for an appropriate balance between certainty and flexibility.

The key lesson

For bonus earners, borrowing capacity can depend less on the headline salary than on choosing a lender whose underwriting reflects how the remuneration is actually earned.

05 / Your questions

Understanding mortgages with bonus income.

Can bonus income be used for mortgage affordability?

Potentially. Lenders differ in the percentage of bonus income they use, the history they want to see and whether they average variable earnings. The right answer depends on the evidence, the remuneration pattern and the lender’s current criteria.

Does a longer mortgage term always mean I can borrow more?

Not always. A longer term can reduce the required monthly repayment in an affordability model, but lenders also consider age, retirement, commitments and their own stress testing. A longer term can also increase total interest if the mortgage remains outstanding for longer.

Should bonus earners choose a two-year or five-year fixed rate?

There is no universally better option. A shorter fixed period creates an earlier opportunity to review the mortgage, while a longer fix offers payment certainty for longer. Product costs, early repayment charges, future plans and appetite for payment changes all matter.

Does an affordability decision in principle guarantee the mortgage?

No. It is an initial indication based on the information assessed at that stage. A full mortgage remains subject to the lender’s evidence checks, credit assessment, property valuation, underwriting and product availability.

Your income. Your borrowing range.

Variable pay should be assessed on the right evidence, not a generic multiple.

If salary is only one part of your remuneration, a proper assessment can show which lenders are more likely to recognise bonus, commission or other variable earnings and how that affects the structure of a home purchase.

Understand your options before you commit. Your initial conversation, assessment and presentation of suitable options are free, with no obligation. Any fees are explained before you decide whether to proceed.

Steve Verrell

Adviser behind this case

Share a brief outline of your purchase range and how your income is structured. The Willow team can then explain the next step for assessing suitable mortgage options.

Enquire with the Willow team Call 0207 082 5175
  • 01 Explain the objective Tell us the intended purchase range, deposit and timing.
  • 02 Map the income We assess salary, bonus and relevant commitments against lender approaches.
  • 03 Compare suitable routes We present appropriate options and explain every cost before you decide whether to proceed.

Please keep your message brief and do not attach financial or identity documents.

About this case study. Client details have been anonymised. This case describes lender affordability confirmed in principle, not a mortgage offer or completed purchase. Criteria and product availability can change, and any application remains subject to full assessment, evidence, valuation and underwriting.

As a mortgage is secured against your home or property, it could be repossessed if you do not keep up the mortgage repayments.