Self-Employed Home Loans: BAS vs Tax Returns — What Lenders Actually Want
When you’re self-employed and applying for a home loan, the documents a lender requests tell you almost everything you need to know about whether they’re going to approve you.
Major banks ask for two years of tax returns. Specialist lenders often accept BAS statements. These aren’t interchangeable — they measure different things, and understanding the difference can be the gap between a yes and a no.
Why Tax Returns Are a Problem for Self-Employed Borrowers
Tax returns show your taxable income — not your actual earning capacity.
Most self-employed Australians, quite reasonably, structure their finances to minimise taxable income. You claim every legitimate deduction: depreciation, vehicle, equipment, home office, superannuation contributions, business expenses. Your accountant’s job is to get that number as low as possible.
That’s smart tax planning. But it creates a problem when the same number is used to assess your borrowing capacity.
A plumber turning over $280,000 who pays themselves $90,000 and reinvests the rest in the business might show a taxable income of $72,000 after deductions. At a major bank using that figure and a 6× DTI cap (APRA’s rule since February 2026), maximum borrowing capacity is approximately $432,000 — well short of where property prices sit in most Australian cities.
The income is real. The tax return just doesn’t reflect it.
What a BAS Statement Actually Shows
A Business Activity Statement (BAS) is lodged with the ATO quarterly to report GST, PAYG, and other obligations. Crucially, the GST turnover figures on a BAS are much harder to manipulate than a tax return — they reflect actual sales, not profit after deductions.
What a specialist lender looks for in your BAS:
- Consistent or growing turnover across the last 4 statements (12 months)
- Regular lodgement — gaps or irregular lodgement dates raise questions
- GST-registered trading — confirms you’re operating at scale (registered businesses must turn over $75,000+ per year to be GST registered)
- Trend direction — steady or improving; seasonal fluctuation is fine as long as the pattern makes sense for your industry
From the BAS figures, lenders apply a standard shading factor — typically 80–85% of GST turnover — to estimate an income figure they’re comfortable using for serviceability. It’s a simplified calculation, but it’s based on real business activity rather than a figure that’s been optimised for tax purposes.
When Lenders Accept BAS (and When They Don’t)
Not every lender accepts BAS statements, and those that do have different requirements. Here’s how it typically breaks down:
Major banks: Generally won’t accept BAS-only income verification. They require full tax returns for at least two years and will apply the DTI cap to declared taxable income.
Non-bank specialist lenders: Most accept 4 BAS statements as primary income documentation for low doc loans. Some accept 2 BAS statements for lower LVR applications (under 70%). A small number will also accept 6–12 months of business bank statements in place of or alongside BAS.
The documentation hierarchy most specialist lenders prefer:
- 4 BAS statements + business bank statements (strongest)
- 4 BAS statements alone
- 2 BAS statements (limited to lower LVRs)
- Accountant’s letter + BAS (where BAS isn’t available for 12 months)
Business Bank Statements: The Other Option
If your business is registered but not GST-registered (turnover under $75,000), or if you’ve had a BAS lodgement issue, business bank statements offer an alternative.
Lenders look for:
- Regular trading deposits matching your described income
- Low or manageable overdraft usage
- No large, unexplained withdrawals that might indicate a cash flow problem
- 6–12 months of consistent activity
Bank statements are often used alongside BAS to confirm the picture, rather than instead of them. A lender seeing matching BAS turnover and bank deposits has high confidence in your income story.
Which One Should You Lead With?
If you have 12 months of BAS lodged and a business bank account with regular trading activity, you’re in a strong position for a specialist low doc loan — regardless of what your tax return shows.
The practical starting point is to pull together:
- Your last 4 BAS statements (printable from your myGov ATO portal)
- 6 months of business bank statements
- Your most recent tax return (even if the income figure is low — context helps)
From there, a specialist broker can match your profile to the right lender panel and tell you what rate and LVR you’re likely to access before you formally apply.
Outlook Finance works exclusively with self-employed borrowers and specialist lenders across Australia. A free 30-minute assessment costs you nothing and gives you a clear picture of where you stand — with no credit check at that stage.
Book a free assessment → or call 1300 432 961.
Outlook Finance Pty Ltd · ACL 418711 · outlookfinance.com.au