Every year before June 30, a large number of self-employed people make decisions that will directly affect what they can borrow — without realising the two things are connected.
The decisions are sensible. The timing just matters more than most people are told.
Here's how the two pieces fit together.
How lenders assess income for self-employed borrowers
When someone in regular employment applies for a home loan, their income assessment is relatively straightforward. Payslips, a group certificate, or employer confirmation — the number is verifiable and current.
For self-employed borrowers, the process works differently. Lenders can't verify income through an employer. Instead, they work from tax returns — typically the last one to two years of personal returns, sometimes both, sometimes only the most recent.
The specific approach varies by lender. Some average both years. Some take the lower of the two. Some weight the most recent more heavily. But in most cases, the taxable income figure from the return is where the assessment starts.
This is the part worth sitting with: it's not what you earned, invoiced, or received in the broad sense. It's the income figure the ATO has recorded. That's the number a lender uses.
What tax minimisation does to that number
One of the genuine advantages of being self-employed is control over your tax position. Prepaying deductible expenses before June 30, making superannuation contributions, timing income — there are legitimate levers available that salaried employees don't have access to.
Accountants help their clients use these levers, and doing so is entirely reasonable.
The thing to understand is that the same decisions that reduce your tax liability also reduce the income figure a lender will see. They're the same number.
If your taxable income lands at $105,000 after legitimate deductions and contributions — regardless of what the business generated — the lender is working from $105,000. That's the figure that drives the assessment.
Why this matters more now than it used to
This has always been the case for self-employed borrowers. But APRA's debt-to-income guidelines have made the income figure more consequential.
Lenders now assess not just whether a borrower can service a specific loan, but whether the loan size is appropriate relative to their verified income. This ratio — debt relative to income — is applied as part of the assessment.
What that means in practice is that assessed income determines two things: whether you can afford the repayments and how large a loan a lender is prepared to extend to you at all.
A lower taxable income tightens both.
Someone with strong real capacity — genuine earnings, a profitable business, a long track record — may still find their borrowing ceiling is constrained by what the return shows. Because the lender has to work from the return.
The timing problem
The EOFY period — late April through to June 30 — is when the decisions that shape the return are being made. Super contributions are being finalised. Expenses are being reviewed. Structures are being considered.
Once those decisions are made and the return is lodged, the figures are set. A lender reading that return twelve months from now is working from choices made this June.
The issue is that the tax conversation and the borrowing conversation usually happen separately, with different advisers, at different times. The accountant is focused on minimising the tax outcome this year. The broker, when a client eventually arrives, is focused on what the most recent return shows. Neither is necessarily aware of what the other is planning.
The result is that a borrower can make a perfectly sensible tax decision that turns out to have material implications for what they can borrow — and not discover that until the return has already been lodged and the decision can't be changed.
What's worth understanding before acting
This isn't an argument against tax minimisation. Paying less tax when you can is rational.
It's an argument for bringing both conversations together before the end of the financial year rather than after.
If a property purchase or refinance is on the horizon in the next twelve to twenty-four months, the return being lodged after this June 30 will likely be one of the documents a lender reads. The figures in it — shaped by decisions made now — are the figures an assessment will be built on.
In some cases, after understanding the trade-off, someone will still choose to minimise aggressively. The tax saving is significant, the purchase is far enough away, and it still makes sense. That's a legitimate conclusion.
In other cases, someone might decide to preserve more of their taxable income this year — pay a bit more tax — because they know they want to borrow and they want the return to reflect their actual position.
Neither answer is automatically right. What's worth avoiding is making the decision without knowing the trade-off exists.
If you're self-employed and a property purchase or refinance is somewhere on the agenda in the next year or two, it's worth having the borrowing conversation before June 30 — not as a replacement for the tax conversation, but alongside it.