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ABN, GST and Trading History Rules For Self‑Employed Low‑Doc Loans

Self‑employed and thinking low‑doc? Here’s the minimum ABN age, GST status and trading history lenders usually want to see, plus what to do if you don’t meet the rules yet.

Published 1 Oct 2026Updated 1 Oct 20266 min read

Key Takeaway

Self‑employed Australians usually need 12–24 months of ABN history, GST registration above the $75k turnover threshold, and stable trading over the last 6–12 months to qualify for a low‑doc home loan. Lenders apply an APRA‑style 3% serviceability buffer and closely check BAS, bank statements, and ATO conduct. Where trading history is thin, borrowers may face tighter LVR caps or need to delay the application and first clean up cashflow and tax records. Planning 3–6 months ahead is often the safest move.

ABN, GST and Trading History Rules For Self‑Employed Low‑Doc Loans

This topic is covered in full on Tailored Loans Sydney

Self‑employed and thinking low‑doc? Here’s the minimum ABN age, GST status and trading history lenders usually want to see, plus what to do if you don’t meet the rules yet.

Read the full guide on tailoredloans.sydney

Self‑employed low‑doc lenders usually want three things: (1) your ABN running for at least 12–24 months, (2) GST registration if your turnover is or should be above $75k, and (3) clear evidence the business has traded steadily for the last 6–12 months.

If you’re light on any of these, you may still get a loan, but expect fewer lenders, lower LVRs and higher pricing.

ABN, GST and trading history details on a laptop for a self-employed borrower. Lenders rely on ABN age, GST status and recent trading history to assess self-employed low-doc borrowers.

Quick thresholds: ABN, GST and trading history at a glance

Here are the rough minimums most mainstream and specialist low‑doc lenders look for.

RequirementTypical minimum for sharper low‑docLooser / specialist options*
ABN age24 months12 months (sometimes 6)
Trading in current structure12–24 months6–12 months
GST registrationRequired if turnover ≥ $75kSometimes waived if < $75k
Evidence of income12–24 months BAS or 6–12 months bank statements6 months bank statements, accountant letter
Max LVR~70–80%~60–70%

*Indicative only. Each lender has its own policy and risk appetite.

A practical safety rule for self‑employed borrowers is to keep total home and investment repayments under 30–35% of after‑tax income when stress‑tested at rates 3% higher than today, even if the bank will lend more (see /insights/maximising-borrowing-power-self-employed-low-doc-vs-full-doc).

1. ABN age: how long is “enough” for a low‑doc loan?

Most lenders care less about the ABN itself and more about continuous trading under that ABN or company.

Common ABN age rules

  1. 24 months ABN, 24 months trading
    This is the sweet spot for many low‑doc and alt‑doc policies.

  2. 12–24 months ABN, strong prior industry history
    Some lenders will accept a newer ABN if you’ve worked in the same line of work PAYG for years.

  3. Less than 12 months ABN
    Very few options, usually:

    • lower LVR (often max 60–70%)
    • higher rates and fees
    • tighter scrutiny of bank statements.

Example:
You’ve run a café under your ABN for 18 months. Turnover is stable, GST‑registered, BAS lodged on time. A few mainstream non‑banks may consider 70–80% LVR using BAS or bank‑statement income. If the ABN is only 7 months old, you’re likely capped near 60–70% and paying a steeper rate.

If your ABN has changed due to moving from sole trader to company, lenders will often treat it as continuous if ownership, business activity and location are clearly similar.

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Frequently asked questions

It is possible but only with a small group of specialist lenders and usually on conservative terms. Expect lower maximum LVRs, higher rates and fees, and very close scrutiny of your bank statements and ATO conduct. Many borrowers are better off waiting until they have 12–24 months of trading history before applying.
You don’t need GST registration if your business turnover is genuinely under the $75,000 threshold. If your income is above that level and you’re not registered, lenders usually treat it as a compliance concern and may decline or delay the loan until it’s fixed. Clean, on-time BAS lodgements are often a key approval condition.
Most lenders prefer at least 12–24 months of continuous trading in your current business structure. They also place heavy weight on the last 6–12 months of BAS and bank statements, looking for stable or improving turnover, few overdrawn days, and no serious ATO issues. Less history usually means fewer lenders and tighter LVR caps.

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