Why Your Tax Return Is Hurting Your Home Loan Application (And What to Do About It)

The problem: your accountant's job vs. the bank's job

Your accountant's job is to legally minimise your tax. They do this by maximising deductions — vehicle costs, equipment depreciation, home office expenses, insurance, superannuation contributions, and more.

The bank's job is to assess risk. They look at your taxable income (the bottom line of your tax return) and calculate how much you can borrow based on that figure.

The result? Your accountant saves you $20,000 in tax, but the bank reduces your borrowing capacity by $150,000–$250,000. It's a classic catch-22 for self-employed borrowers.

Common deductions that reduce borrowing power

These are all legitimate business expenses — but they directly reduce the income figure banks use to assess your loan:

• Vehicle costs — Depreciation, fuel, insurance, and maintenance on your work vehicle
• Equipment depreciation — Tools, machinery, computers, and other business assets
• Home office expenses — A portion of rent, utilities, and internet
• Superannuation contributions — Voluntary contributions above the minimum
• Professional development — Courses, conferences, and training
• Insurance premiums — Income protection, public liability, professional indemnity
• Marketing and advertising — Website, social media, signage, and promotional costs
• One-off purchases — Large equipment buys or business setup costs

What you can do about it

Option 1: Plan ahead with your accountant

If you know you'll be applying for a home loan in the next 12–24 months, talk to your accountant. They may be able to adjust your tax strategy to show higher taxable income on your next return — without dramatically increasing your tax bill.

This doesn't mean paying unnecessary tax. It means being strategic about the timing of deductions, depreciation schedules, and income recognition.

Option 2: Use a low doc pathway

Low doc loans bypass the tax return entirely. Instead, you verify income using:

• BAS statements — Your quarterly GST turnover, assessed at 50–70% as income
• Bank statements — 3–6 months of business deposits averaged and annualised
• Accountant declaration — A letter from your accountant confirming your actual income

Low doc loans typically require a 20% deposit and may carry a slightly higher rate (0.3–0.8% above full doc), but they can dramatically increase your borrowing capacity compared to using a tax return that shows low income.

Option 3: Use add-backs with the right lender

Some lenders will "add back" certain deductions to your taxable income when calculating borrowing capacity. Common add-backs include:

• Depreciation on vehicles and equipment
• One-off or non-recurring expenses
• Interest on investment loans
• Superannuation contributions above the minimum

Not all lenders offer add-backs, and the policies vary significantly. A specialist broker knows which lenders are most generous and how to structure your application to maximise the benefit.

Option 4: Wait for a stronger tax return

If you're not in a rush, you may be able to time your application to coincide with a tax return that shows higher income. This is especially relevant if you had a strong year recently or if your accountant can adjust the next return.

A real example

Sarah runs a successful graphic design business. Her turnover is $180,000 per year, but after deductions for her home office, computer equipment, software subscriptions, and vehicle, her taxable income is $72,000.

At $72,000, her maximum borrowing capacity with a major bank is approximately $380,000 — not enough for the $520,000 she needs.

Using a BAS-based low doc pathway with a specialist lender, her assessed income was calculated at 60% of her BAS turnover = $108,000. At that income, her borrowing capacity exceeded $580,000 — more than enough.

The bottom line

Tax minimisation and borrowing power are often in direct conflict. The key is understanding your options and working with professionals — both your accountant and your broker — who can help you navigate both sides.

At New Vision Financial Services, we see this every day. We help self-employed borrowers find the right balance between tax efficiency and borrowing capacity, using the right lender and the right documentation strategy.