Australian mortgage brokers who have been writing alt-doc loans for more than five years will remember a period when a recently issued ABN barely caused an underwriter to pause. As recently as mid-2022, several non-bank lenders would entertain a self-employed application with six months of trading and a stack of BAS statements. Two years of aggressive monetary tightening have rewired that posture. Between May 2022 and November 2023 the Reserve Bank lifted the cash rate from 0.10 per cent to 4.35 per cent, adding more than $1,600 a month to a typical $500,000 variable-rate loan. Alt-doc borrowers, who already pay a risk premium of 80 to 150 basis points above bank rates, now face serviceability assessments that assume a floor assessment rate of 6.00 per cent or higher, plus a buffer of at least 2.50 per cent. For a sole trader who registered an ABN in the past 18 months — perhaps because they switched from PAYG employment to contracting, or started a small trade business — those arithmetic realities are harsh. In response, the mortgage managers that dominate the low-doc space have recalibrated their view of a newly registered ABN. What was once a curiosity in a credit file is now a core filter that determines everything from the maximum LVR to the volume of evidence required.
The shift became visible in the first half of 2024, when Pepper Money, La Trobe Financial, Liberty, Resimac, Bluestone and Brighten all published updated policy documents that either lifted the minimum ABN tenure or added LVR hair-cuts for registrations under 24 months. Because alt-doc lending is not governed by APRA’s prudential standards in the same way that authorised deposit-taking institutions are, each non-bank can move unilaterally and, often, without the fanfare of a media release. For brokers and self-employed borrowers, that means the real rulebook is the product guide dated a few weeks ago, not the generic marketing collateral on the website. This article translates the current, hard-edged treatment of new ABNs at the six lenders that dominate the Australian alt-doc segment, and it explains precisely which numbers matter in 2025.
The arithmetic that made ABN age a hard gate
When a lender prices an alt-doc loan, it is underwriting two risks that are less pronounced in a full-doc PAYG file: income volatility and verification uncertainty. A business that has been trading under the same ABN for two or more complete financial years typically yields two tax returns and two years of Notices of Assessment. Those documents allow a credit assessor to observe a trend. A brand-new ABN — one that has existed for only six, 12 or 18 months — offers no such visibility. With 47 per cent of Australian small businesses failing within the first four years of operation, according to ABS counts tracked by the Reserve Bank, a short ABN tenure raises the probability of early closure. The rate cycle has amplified that risk because the jump from a 2.29 per cent discount variable rate in early 2022 to a 6.29 per cent principal-and-interest repayment in early 2025 has erased the cash-flow cushion that many fledgling enterprises counted on.
At the same time, serviceability buffers have compressed how much a low-doc applicant may borrow. Most non-bank alt-doc products now calculate repayment capacity using an assessment rate of 6.00–7.00 per cent, even though the client’s actual pay rate may be 5.69–6.49 per cent. Combined with a debt-to-income ratio (DTI) cap that rarely exceeds 6.5 times, the buffer effect makes a newly registered ABN borrower look far weaker than a PAYG counterpart with the same gross income. Lenders therefore treat ABN age as a proxy for stability and apply it as a binary gate — with hard LVR, DTI and loan-amount ceilings — before they even open the BAS folders.
Minimum ABN duration requirements across the alt-doc panel
The non-bank panel has effectively split into three camps: a strict 24-month requirement for standard alt-doc, a 12-month minimum with beefed-up documentation and reduced leverage, and a handful of products that will consider six months of trading for very narrow professional cohorts.
The strict 24-month tier
Pepper Money’s standard Alt Doc product — the one most brokers use for a vanilla self-employed purchase or refinance — demands “an ABN registered for a minimum of 24 months at the time of application” (Pepper Money Alt Doc Product Guide, Version 5.4, effective 15 March 2024). The same guide states that a borrowing entity that has been “operating under a newly registered entity due to a restructure” may be considered if the previous ABN was held for at least 24 months, but that pathway requires the applicant to prove an unbroken trading history in the same industry. No grace is extended to a genuine start-up.
Resimac mirrors that stance. Its Prime Alt Doc and Specialist Alt Doc programs both begin with the sentence: “Applicant must have held an active ABN for a minimum of 24 months” (Resimac Specialist Lending Policy, August 2024 revision). The manual adds that the 24 months is calculated from the ABN registration date, not the GST registration date. A borrower who registers a new ABN in March 2023 may apply on or after March 2025, subject to other criteria. Resimac’s 24-month rule is not softened by an accountant’s letter; it is a hard condition of the product specification.
The 12-month + maximum LVR haircut tier
Liberty Financial’s FreeThinking Alt Doc has long been more flexible than its peers, and its 2024 iteration formalises that flexibility while capping leverage. Liberty’s Responsible Lending and Product Guide, updated 1 June 2024, says: “Where the applicant has been self-employed under the current ABN for at least 12 months, we will consider an alt-doc application.” However, the same page imposes an LVR limit of 65 per cent for a full-doc equivalent assessment and 60 per cent if the borrower wants to use the lender’s streamlined BAS-only pathway. Purchases above 80 per cent LVR are off the table entirely, and debt-to-income is capped at 5.5 times.
La Trobe Financial moved to a similar position in its current Product Guide (effective 1 April 2024). La Trobe writes that an ABN registered for “12 to 24 months” may be accepted “where the applicant provides an accountant’s letter confirming the nature and tenure of the business, and at least four consecutive quarterly BAS statements showing turnover consistent with the declared income.” For these files, the LVR ceiling is 60 per cent for a purchase and 55 per cent for a refinance, and the maximum loan size is $1 million. If the ABN is less than 12 months old, La Trobe directs the file to its private lending desk, removing any alt-doc pricing benefit.
Bluestone’s portfolio also delivers a 12-month entry point under strict conditions. Bluestone Alt Doc Policy (effective 1 February 2024) states that an ABN held for a minimum of 12 months is acceptable “if the applicant has provided 12 months of business activity statements and a letter from a qualified accountant confirming the business is trading profitably.” The lender caps the LVR at 65 per cent for purchases, 60 per cent for refinances, and limits the total loan to $750,000. DTI is held at 6.0 times with full serviceability proof.
Brighten’s Alt Doc Lite product, introduced in its April 2024 product refresh, sits at the most accommodating end of this cohort. Brighten will accept an ABN with only 12 months of registration, and it will sometimes permit a further look at six months of BAS statements plus an accountant projection. The documented maximum LVR is 70 per cent for a purchase and 65 per cent for a refinance, but the lender requires a minimum credit score of 650 for clean credit and 700 for any blemishes, and DTI cannot exceed 5.5 times.
The sub-12-month carve-out
No mainstream alt-doc lender will accept an ABN younger than 12 months without a substantial compensating factor. The Pepper Money Professional and Tradie pathway offers one limited exception: a self-employed professional such as an accountant, lawyer or IT contractor who has switched from a PAYG role to an ABN can ask for a file review after six months of trading, provided they submit a signed employment contract or client agreement, 12 months of bank statements, and a projection letter. Even then, the maximum lend is 60 per cent LVR, capped at $500,000, and interest rates start around 200 basis points above Pepper’s standard alt-doc rate.
How lenders measure and treat a newly registered entity
When an applicant presents a new ABN, the assessor’s first task is to separate a genuinely new venture from a simple restructuring. The tool is the ABN Lookup service provided by the Australian Business Register, which shows the entity type, registration date, and GST status. Lenders cross-check this with the borrower’s credit file, which usually lists past directorships and employment. An ABN registered on 1 July 2024 for a sole trader who was previously employed as a PAYG carpenter will be scrutinised differently from an ABN registered on the same date for a fresh café startup.
The restructuring pathway
If the borrower can demonstrate that the underlying business has been operating under a different structure, the key document is an accountant’s declaration that the economic activity is unchanged. Pepper Money, Resimac and Liberty will all accept a newly registered corporate ABN if the individual operated as a sole trader under a previous ABN for at least 24 months and the transition was a simple incorporation. La Trobe Financial’s manual (effective 1 April 2024) states: “Where the applicant has changed entity type, the combined ABN tenure of the associated entities will be considered, provided the applicant’s beneficial ownership of the new entity is at least 75 per cent.” That clarity does not extend to a start-up scenario.
GST registration as a secondary signal
Several lenders use the GST registration date as a fallback because it indicates the point at which the business expects turnover to exceed $75,000 per year. Bluestone’s February 2024 policy instructs assessors to treat the GST registration date as the “effective start of trading” when it is more recent than the ABN date. A business that registered an ABN on 1 January 2023 but did not register for GST until 1 October 2023 will be deemed to have traded for only 18 months by October 2025, not 34 months. That nuance catches out many applicants who registered an ABN early but started operating later. Brokers should reconcile ABN Lookup, the BAS and bank statements before presenting a file.
The BAS stack
For alt-doc applications where the ABN is under 24 months, the number and quality of BAS statements required escalate. Standard 24-month alt-doc usually permits a declaration of income with the most recent year’s tax return and two quarters of BAS. A 12-month ABN file typically needs four consecutive BAS statements, with each quarter showing revenue within 15 per cent of the declared annualised turnover (Brighten Product Matrix, April 2024). Lenders are also checking that the BAS contains activity statement labels G1 (total sales) and 1A (GST on sales) consistently; a large lump sum in one quarter will be averaged or excluded unless an accountant explains it as a contract payment.
LVR, pricing and loan-size implications
A newly registered ABN always costs more and buys less leverage. At the 24-month level, a Pepper Money Alt Doc loan can reach 80 per cent LVR with lender’s mortgage insurance, and the variable rate for a clean credit file sits at 5.69 per cent p.a. (comparison rate 6.12 per cent) as of March 2025. Drop to the 12–24-month bracket, and that LVR shrinks to 65 per cent with a rate of 5.99 per cent p.a. plus risk fees of 0.25 per cent of the loan amount. Liberty’s sub-24-month alt-doc attracts a start rate of 6.29 per cent p.a., compared with 5.79 per cent for clients with two years of ABN history.
The loan-size caps are equally blunt. Resimac will not fund more than $1 million for an alt-doc purchase when the ABN is under 24 months; beyond that, the file moves to the private-lending suite. La Trobe sets a hard cap of $1 million for its 12-month tier, and Brighten has a $750,000 maximum for its Alt Doc Lite. For a buyer in a capital city trying to purchase a median-priced house of $1.2 million, a 65 per cent LVR means a deposit of $420,000, compared with the $240,000 that a PAYG borrower might need on an 80 per cent LVR loan. That equity gap is the real cost of a new ABN in 2025.
Actionable strategies for the self-employed applicant
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Audit the ABN registration date against the lender’s benchmark before you lodge. Check ABN Lookup and compare it with the GST registration date. If the GST date is more recent, pre-empt the lender’s query by attaching an accountant’s letter that explains the lag, and back it up with bank statements showing when trading income commenced.
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Build a four-quarter BAS history before applying if your ABN is between 12 and 24 months old. Most lenders that accept short-tenure ABNs want a clean run of four BAS statements with consistent turnover. Applying with only two or three quarters will almost certainly invite a decline until the fourth BAS drops.
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Target the 70 per cent LVR tranche first. Brighten’s Alt Doc Lite and Bluestone’s 12-month pathway both allow 70 per cent LVR on a purchase, which can substantially reduce the cash contribution. Accepting a slightly higher interest rate of 6.29 per cent instead of 5.99 per cent for six months may be more practical than trying to assemble a larger deposit while rental costs are climbing.
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Use a restructuring letter to unlock the 24-month treatment. If you have incorporated a business that you previously ran as a sole trader, instruct your accountant to write a letter that maps the old ABN to the new entity, confirms 75 per cent beneficial ownership, and lists the years of continuous operation. Pepper, Liberty and La Trobe will all accept this as equivalent to a 24-month ABN, and it often reinstates the higher LVR and lower rate.
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Plan to refinance once the ABN hits the two-year mark. A 60 or 65 per cent LVR alt-doc loan taken on a new ABN need not be permanent. As soon as the ABN registration date passes 24 months and two years of tax returns become available, a broker can look for a standard alt-doc refinance at 5.69 per cent, dropping out the risk margin. The cost of a valuation and discharge fee is usually outweighed by the interest saving within nine to 12 months.