Income Documents Self-Employed Borrowers Must Provide
When you apply for a home loan as a self-employed borrower, you cannot rely on a simple payslip. Lenders require a comprehensive set of documents to verify your income and assess your ability to repay the loan. The following checklist covers the key documents you will typically need to prepare.
- Business Activity Statements (BAS): The most recent four quarterly BAS statements lodged with the ATO, or at least the last 12 months of lodged BAS. These show your GST turnover and are a key way lenders cross‑check your declared income.
- Tax returns and ATO notices of assessment: Full copies of your personal tax returns for the last two financial years, together with the corresponding ATO notices of assessment. These confirm the income the Tax Office has on record.
- Accountant’s letter: A signed letter from a qualified practising accountant, on the firm’s letterhead, verifying your income, business structure, ownership percentage, and length of trading. Some lenders have their own template that the accountant must complete.
- Business bank statements: The last six months of statements for every business transaction account, showing consistent trading activity.
- Personal bank statements: Usually the last three to six months of statements for accounts where salary, dividends, or trust distributions are paid.
- Profit and loss statement: A year‑to‑date P&L prepared by your accountant, ideally signed and dated, giving a current view of the business’s performance.
- Balance sheet: A current balance sheet showing the business’s assets and liabilities.
- Business tax returns: If you trade through a company, partnership, or trust, provide the entity’s tax return for the last two years.
- Notice of assessment for the entity: Where applicable (e.g., a trust), the ATO notice of assessment for that entity.
How Banks Assess Your Repayment Capacity
Lenders do not simply take the profit figure from your tax return at face value. They reconstruct your income to determine a serviceable amount for loan repayments.

- Add‑backs are common: Non‑cash expenses such as depreciation, additional superannuation contributions above the compulsory rate, and one‑off or discretionary costs may be added back to the profit to give a more realistic picture of your income.
- They average the income: Most lenders assess the most recent year’s income if it is higher than the previous year, or average the last two years if income has been flat or declining. A few will take the lower of the two years as a safety margin.
- Company or trust income is only yours to the extent you own it: If your business is structured as a company or trust, the lender only counts the percentage of profit that corresponds to your ownership. They will also want to see that the income has actually been distributed to you – hence the personal tax returns and bank statements are crucial.
What If You’ve Been Self-Employed for Less Than Two Years?
While the standard requirement is two full financial years of tax returns, some lenders have a “low‑doc” or “alt‑doc” pathway. To qualify, you typically need:
- Registration for GST and at least 12 months of lodged BAS statements.
- A signed accountant’s letter confirming your income and trading history.
- Business bank statements that support the declared revenue.
A shorter trading history usually means a higher interest rate and a maximum loan‑to‑value ratio (LVR) of around 80%. Still, this option can open the door for established sole traders and contractors who don’t yet have the second tax return.
Frequently Asked Questions

Why do banks need my BAS statements if I’ve already given them tax returns?
Tax returns are a yearly snapshot; BAS statements, lodged quarterly, give the lender a more timely view of your current trading performance and help them spot any recent drop in turnover.
Can I use an accountant’s letter alone to prove my income?
No – the accountant’s letter is one piece of the puzzle. Lenders will always cross‑check it against your lodged tax returns, notices of assessment, and bank statements. The letter confirms what the other documents should already demonstrate.
What if my business profit varies a lot from year to year?
Lenders will typically look at a two‑year average. If the most recent year is higher, they will often use that figure. If the more recent year is lower, they are likely to use the lower number or an average – they don’t want to rely on income that appears to be falling.
Do different banks have different requirements?
Yes. While the list above covers what most mainstream lenders ask for, some may request only one year of tax returns for a self‑employed applicant with a strong overall profile, while others are stricter. The low‑doc space varies even more widely in what it accepts. A mortgage broker experienced in self‑employed lending can help match your documents to the right lender, which may save you time and reduce the risk of a declined application.