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Self-employed single mums: the four documents to get in order before applying for a home loan

By Rielle Berglund

Self-employed single mums applying for a home loan in Australia need four key documentation categories in order before applying. First, current tax returns and Notices of Assessment (usually two years, sometimes one, depending on lender). Second, current Business Activity Statements (usually the last four quarters). Third, formal documentation of any child support or Family Tax Benefit income you rely on. And fourth, clean business and personal bank records showing consistent income and stable spending patterns. Preparing these before applying (rather than during the application) turns a stressful process into a manageable one. A mortgage broker who specialises in self-employed clients can walk you through what each lender needs.

Self-employed single mums are one of the most common client profiles I sit across from. Women running their own businesses (often built out of necessity after separation, career changes, or the impossibility of finding flexible work) trying to work out how to buy a home on the income and time they actually have.

The good news is that the numbers usually work better than these women expect. The less-good news is that the documentation burden is heavier than for a PAYG applicant. Business paperwork. Personal paperwork. Child support paperwork. Bank statements. Tax returns. Notices of Assessment. Accountant declarations, sometimes. If you want the broader picture on self-employed lending before we dive into documents, Getting a home loan when you're self-employed is worth reading first.

The single biggest thing that turns a stressful application into a manageable one is having the documentation in order before you start. Not during. Before.

Here's the practical version.

What are the four core documentation categories?

The paperwork breaks into four buckets. Each one covers something specific that lenders need to see.

1. Tax returns and Notices of Assessment. Most mainstream lenders want your last two years of personal tax returns and matching Notices of Assessment (NOAs) from the ATO. Some specialist lenders will accept one year. Non-bank and alt-doc lenders may accept alternative documentation (BAS, accountant letters, business bank statements) instead. What lenders can't work with is unlodged returns. If you're behind on tax lodgements, this is the single most important thing to fix before applying.

2. Business Activity Statements (BAS). Most lenders want the last four quarters of BAS statements to show current trading activity and income patterns. For alt-doc applications, BAS statements often replace tax returns as the primary evidence of income, so recency and consistency matter.

3. Child support and Family Tax Benefit documentation. This is where self-employed single mums often get caught out. Lenders that accept child support and Family Tax Benefit as income (which many do, especially specialist lenders) want formal documentation. For child support, this means a Services Australia assessment letter (not a private agreement). For FTB, it's a recent Centrelink statement. Informal or "we sort it out between us" arrangements are typically not accepted.

4. Business and personal bank statements. Lenders want to see three to six months of both business and personal bank statements. They cross-check these against declared income and expenses. Sloppy records, unexplained large transactions, or mixed personal-business finances create friction. Clean records make the application faster and easier.

What tax returns and NOAs do I actually need?

For sole traders and company directors, two years of the following is the standard:

  • Personal tax returns

  • Personal Notices of Assessment (matching the tax returns)

  • For company directors and trust structures: also the business tax returns and financial statements

The NOAs matter because they're the ATO's confirmation that your declared income was accepted and processed. Lenders cross-check them against tax returns to spot any inconsistencies.

For newly self-employed applicants who don't yet have two years:

  • One year of tax returns may be enough with a specialist lender

  • Alt-doc products may accept BAS, accountant declarations, or business bank statements in lieu

  • Same-industry PAYG history from before your self-employment can sometimes be counted (a broker can advise)

If you're behind on lodgements, get current before applying. Most lenders won't proceed with overdue returns, even if your income is strong. If you're a way off having two years of tax returns, it's worth reading about the exceptions in The two-year rule isn't always two years.

Why do BAS statements matter so much?

Two reasons.

First, BAS statements show recent trading activity in a way that tax returns can't. A tax return covers the financial year that ended up to 18 months ago. Your last quarter's BAS shows income received in the last three months. Lenders use this to check that your business is currently trading at a similar level to what your tax returns show.

Second, for alt-doc and low-doc applications, BAS statements are often the primary income evidence used. Six months of consistent BAS (usually two quarters) can substitute for a year of tax returns with the right lender.

Practically:

  • Lodge BAS on time, every quarter

  • Keep copies of every BAS lodgement (or access them through the ATO portal)

  • Make sure income declared on BAS is consistent with income received in your business bank account

How do I document child support and Family Tax Benefit as income?

This is one of the most under-discussed issues for self-employed single mums.

Child support. Most lenders that accept child support as income want formal documentation through Services Australia. This means a Child Support Assessment (a formal calculation done by Services Australia, whether or not payments actually go through the agency). Informal cash arrangements between separated parents typically aren't accepted, even if they're consistent and long-standing.

If you receive child support informally and want it counted as income, the fix is often to register the assessment through Services Australia. This doesn't necessarily mean payments have to go through the agency; a private collect arrangement (where your ex still pays you directly, but Services Australia has issued a formal assessment) is often enough. Talk to a lawyer or a Services Australia contact centre about your specific situation.

Family Tax Benefit. For FTB, lenders that accept it as income want a recent Centrelink statement or a myGov income confirmation. Most lenders will count FTB in some form (though at different percentages by lender). Whether it's counted at all often depends on the age of your youngest child. Different lenders draw the line at different ages.

Lender treatment of these income types varies enormously, which is why lender choice matters more than most single mums realise. A broker who works with single parent clients can identify the lenders who treat your income mix most favourably. For more on building the deposit itself, Saving that deposit as a Single Parent covers the practical steps.

What about my bank statements?

Most lenders want the last three to six months of both business and personal bank statements. They use these to:

  • Verify income received into the business

  • Check that declared living expenses match what actually shows in your personal spending

  • Look for existing debts, direct debits, and financial commitments

  • Confirm any child support or FTB payments received

Practical things that help:

  • Keep business and personal finances separated cleanly (not mixed)

  • Avoid unusual large deposits or transfers in the months before applying (or be ready to document them)

  • Make sure income deposits match what's declared on BAS and tax returns

  • Address any old direct debits for services you no longer use

Lenders don't need your accounts to be pristine. They need them to be legible and consistent with what you've told them.

What if my income is variable or I've had a recent change?

Self-employed income variation is common and manageable. What matters is being ready to explain it clearly.

If your income has grown significantly year on year, some lenders will accept the higher year and others will average. If it's dropped, most lenders will use the lower year, but some will accept the most recent year with a full explanation.

If you've had a specific event (COVID recovery, a major client won or lost, a business pivot, taking maternity leave from your own business), the explanation matters as much as the numbers. A short written summary from your accountant explaining the movement can significantly help the application.

Frequently asked questions

How long does it take to get my documentation together?

Realistically, four to eight weeks if you're starting from scratch. Two of the four categories (BAS and bank statements) are relatively quick to gather. Tax returns and NOAs depend on your accountant's timeline. Formal child support and FTB documentation may take a few weeks if you need to register anything through Services Australia. Starting the documentation gathering before you talk to a lender is one of the highest-return things you can do.

Do I need my accountant involved from the start?

Yes, particularly for tax returns, BAS, and any financial statements. Your accountant may also need to write a declaration confirming income for some lenders. A good accountant who understands home loan lending will make the whole process significantly smoother.

What if my ex won't formally register child support through Services Australia?

You can still apply for a formal Child Support Assessment through Services Australia on your own. It doesn't require your ex's consent to register the assessment (though it can affect your ongoing relationship, so worth thinking through). This creates the formal record most lenders want to see. A family lawyer or Services Australia contact centre can walk you through the process.

What documentation do I need for the 5% Deposit Scheme as a single parent?

In addition to standard home loan documentation, the Australian Government 5% Deposit Scheme (Family Home Guarantee stream) requires evidence of your single parent status (usually through Centrelink documentation), that you have at least one dependent child, and that you're an Australian citizen or permanent resident. Full eligibility criteria are on firsthomebuyers.gov.au.

Rielle Berglund is a mortgage broker specialising in single parents, women, and self-employed Australians navigating home loans on a single income. She is the founder of Matilda Tree Finance and the creator of Runa, a free financial literacy app for Australian women.

Sources and references

This article draws on Rielle Berglund's professional experience as a mortgage broker. The following sources are relevant to topics covered:

This article is general information only and does not constitute financial, legal or tax advice. Please speak to a licensed financial adviser, solicitor and your accountant about your specific circumstances.

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