Navigating Complex Income Structures

Most mortgage applications are straightforward when income is concerned: a payslip, an employment letter, and the numbers add up. But a growing proportion of New Zealand borrowers earn their income in ways that do not fit that simple picture, and for these clients, the quality of the adviser's understanding of how income is treated across different lenders can make a material difference to whether they get approved, for how much, and at what cost. At Chaperone, navigating complex income structures is one of the skills we see advisers develop over time and one that significantly expands their ability to serve a broader client base.

Self-Employed Income

Self-employed clients are probably the most common source of income complexity. The core challenge is that self-employed individuals often legitimately minimise their taxable income through legitimate business structures, which then appears as lower income to a lender. Most lenders require two years of financial statements and IR3 tax returns, and they typically assess income based on net profit after tax rather than the drawings a client takes. This can produce an assessed income that surprises clients who think of their income as higher. Advisers who understand which lenders are more generous in their treatment of add-backs, depreciation, and retained earnings, or which will accept one year of accounts in certain circumstances, can place self-employed clients more effectively across the market.

Variable and Commission-Based Income

For clients whose income includes variable components such as commissions, bonuses, overtime, or incentives, the question is usually how much of that variable income a lender will include and over what time period. Most lenders require evidence of variable income over at least one to two years and apply some form of averaging or cap. Where a client has recently changed roles and their variable income history does not yet reflect their current earning capacity, some lenders will consider a letter from the employer confirming expected earnings. Understanding each lender's approach to this is important because a client with a base salary of modest size but significant average commission income can look very different in different servicing calculators.

Rental Income

Rental income is another area of significant variation between lenders. Some lenders include rental income at face value, while others apply a discount to account for vacancy and costs. Where a client has a portfolio of rental properties, the interaction between rental income and the associated mortgage liabilities needs careful presentation to ensure the net position is accurately assessed. Clients who have recently purchased a rental property and do not yet have a full year of income history may find that some lenders are more conservative than others in this area. The tax treatment of rental income and the impact of recent rule changes around interest deductibility are also worth understanding so that the income figures presented to the lender are consistent with what the client's accountant will confirm.

Trust and Company Distributions

Some clients receive income through a trust or company structure rather than as personal salary, and this requires additional care. Lenders want to understand whether the client has consistent access to those funds and whether the structure could be disrupted. Trustees' resolutions, company financials, and evidence of consistent distributions over time are typically required. Where a client's personal income is low but their effective access to funds through a family trust is substantial, the adviser needs to understand both the legal and practical dimensions of that arrangement and how to present it in a way that gives the lender confidence. This is an area where working closely with the client's accountant before submission can make a significant difference.

Multiple Income Streams

Many clients today earn from multiple sources simultaneously: a salaried role, a side business, some rental income, and perhaps some contracting work. Presenting this clearly without overwhelming an assessor requires thought about how to organise the income narrative and which components are most reliable and most material. Leading with the strongest and most stable income, supporting it with documentation, and then adding the supplementary streams with their own supporting evidence tends to produce better outcomes than a scattered presentation. Some lenders will include all income streams; others take a more conservative view of secondary income. Lender selection in these cases is as much about credit policy as it is about rate.

Complexity as an Opportunity

Advisers who develop genuine fluency in complex income structures find that this client segment, often underserved by advisers who prefer simpler files, becomes a sustainable source of engaged, grateful clients. The complexity that makes these applications harder also makes good advice more valuable, and clients who have been helped to navigate a genuine challenge tend to be loyal and to refer enthusiastically.