A first-time buyer looking to purchase a £600,000 London flat faced a familiar but nuanced challenge: combining a large gifted deposit with modest employed income and variable commission. With affordability tight and lender scrutiny on income structure, the solution required careful positioning.

By structuring the case strategically,  and selecting the right lender, Steve Verrell ( one of the specialist property finance advisors here at Willow ) was able to secure a mortgage alongside a long-term protection plan, enabling the client to move forward with confidence and financial resilience.

Structuring a First-Time Buyer Mortgage with Variable Income

This case reflects a scenario increasingly seen in the London market, first-time buyers relying on a combination of family support and evolving income structures to access property.

The client, a mid-career sales professional, was purchasing their first home with a substantial deposit, of which a substantial amount of it was a gifted contribution from a parent. While this level of deposit significantly reduced the loan-to-value ratio, the challenge did not lie in equity, it lay in income assessment.

The client’s base salary was due to increase and was also topped up with a monthly commission. From a lender’s perspective, this type of income introduces variability. Traditional lenders often struggle to fully recognise commission income unless it is consistent, evidenced over time, and structured correctly within affordability models.

A typical search scenario here would be: “getting a mortgage with commission income and gifted deposit in London”, a combination that requires both underwriting flexibility and precise presentation.

Why Standard Lending Approaches Fell Short

At first glance, the case appeared straightforward due to the low loan-to-value ratio. However, lender underwriting criteria introduced several constraints.

Many high street lenders apply conservative treatment to variable income. In this case, some lenders would:

• Ignore commission entirely unless evidenced over 12–24 months
• Apply heavy “haircuts” (reductions) to variable earnings
• Focus affordability purely on base salary

This would have significantly reduced borrowing capacity, potentially below the required amount.

Additionally, gifted deposits introduce their own layer of scrutiny. Lenders require clear evidence of:

• The source of funds
• Confirmation the gift is non-repayable
• No retained interest in the property

While this is standard, combining it with marginal affordability increases the risk of decline if not packaged correctly.

This type of scenario is increasingly common, particularly in London where property prices outpace base salary multiples. Buyers often rely on family support and evolving income structures, creating a gap between traditional underwriting models and real-world affordability.

Engineering the Right Lending Strategy

Working closely with the client, the approach focused on lender selection and income positioning rather than simply chasing the lowest rate.

Specialist lenders, and certain flexible high street institutions, are able to take a more pragmatic view of income. In this case, the strategy involved:

• Using the post-pay-rise salary to strengthen affordability
• Incorporating an average of recent commission income rather than excluding it
• Presenting consistent income evidence through payslips and employment history

The lender chosen was comfortable assessing variable income where there was clear continuity and a defined upward trajectory.

At the same time, the loan was structured over a 40-year term. This was a deliberate decision. While extending the term increases total interest paid over time, it significantly reduces monthly commitments, an important trade-off given the client’s current surplus income position.

This balance between affordability and long-term cost is a key consideration in modern mortgage structuring. In this case, maintaining flexibility and cash flow was prioritised, with the option to overpay in future.

The selected product, fixed at 4.57% over two years, provided short-term stability while retaining the ability to reassess once income had increased further.

Managing Risk Beyond the Mortgage

A critical aspect of this case was not just securing the mortgage, but ensuring the client could sustain it under adverse conditions.

With no existing protection in place and only statutory sick pay available, the risk profile was clear. A loss of income, even temporarily, would immediately impact affordability.

This is where income protection became central to the strategy.

Unlike critical illness cover, which only pays out for specific conditions, income protection provides a continuous replacement income if the client is unable to work due to illness or injury. This is particularly relevant for professionals reliant on ongoing employment income.

Specialist insurers are able to structure policies that align with mortgage liabilities, ensuring that:

• Monthly mortgage payments remain covered
• Living costs can still be maintained
• Financial disruption is minimised

I

n this case, a policy covering a lump sum per month was implemented, with a three-month deferment period. This aligned with the client’s limited emergency reserves while keeping premiums efficient.

This type of integrated planning, linking mortgage structuring with protection, is often overlooked but is essential, particularly for first-time buyers with limited financial buffers.

The Outcome

The client successfully secured a  mortgage on a £600,000 London property, using a combination of personal savings and a gifted deposit.

By carefully structuring the application and selecting a lender aligned with the client’s income profile, affordability constraints were navigated effectively.

The final structure delivered:

• A manageable monthly mortgage payment
• A long-term term structure to preserve cash flow
• A protection strategy to safeguard against income disruption

This not only enabled the purchase but ensured the client could sustain ownership with confidence.

Key Takeaways

What made this case possible was not simply the size of the deposit, but how the income and overall profile were presented to the lender. While traditional lenders often default to rigid income models, specialist lenders are able to take a more holistic view, particularly where there is clear income progression and consistency.

The inclusion of commission income, when evidenced correctly, can materially improve borrowing capacity. However, it must be structured and justified within lender criteria. Similarly, gifted deposits are widely accepted, but only when fully documented and aligned with underwriting expectations.

This case also highlights the importance of balancing short-term affordability with long-term strategy. Extending the mortgage term reduced monthly commitments, but with the flexibility to overpay as income grows.

Finally, integrating protection into the structure was critical. Without it, the entire plan would be exposed to a single point of failure, loss of income.

Specialist advice ensures that both the mortgage and the broader financial position are aligned.