Since the Reserve Bank began lifting the cash rate in May 2022, a full-doc self-employed applicant relying on two years’ tax returns has seen baseline borrowing capacity contract by roughly 30–35%. That single arithmetic fact has redirected enormous volume into alt-doc and low-doc pathways across the non-bank sector. Broker aggregator data suggests alt-doc lodgements among the specialist lenders rose 40% year-on-year through December 2023, with the strongest uptick in accountant-letter-backed applications lodged for purchases in the $800,000–$1.4 million band.
The same period has seen lenders harden their document standards. Pepper Money’s September 2023 loan program update removed the standalone BAS-only option for loans above 70% LVR, effectively pushing a larger cohort of borrowers onto accountant-certified income pathways. Liberty Financial embedded a mandatory ATO-portal cross-check in its low-doc policy refresh effective 4 December 2023. Resimac’s alt-doc serviceability calculator, updated 1 February 2024, will not return an approval on an accountant letter unless the letter states the business is trading at the date of signing and the declared income can be traced to at least one lodged BAS within the same financial year. These changes are not cosmetic: they reflect an industry-wide response to APRA’s directive that non-bank lenders maintain origination standards consistent with the 3.0-percentage-point serviceability buffer introduced 1 November 2021 and subsequently reinforced through ASIC’s 2023 targeted review of lending exception data. For a self-employed borrower, the accountant’s letter has moved from a convenience item to a heavily policed credit document—and its precise wording now determines whether the file proceeds to assessment or returns to the broker marked “RTR – letter non-compliant.”
The Minimum Content Standard: What Six Major Lenders Require
Income Declaration Specifics
Every alt-doc lender expects the letter to state an annual income figure net of business expenses but before personal tax. It must be described as the income the accountant believes the borrower has capacity to service debt from, not a statutory net-profit figure carried forward from prior-year financials. Brighten Home Loans’ Residential Lending Policy v15 (April 2024) specifies the figure must be “the assessable income derived after add-backs that are consistent with the lender’s policy on depreciation and discretionary expenses.” Bluestone Mortgages’ Origination Manual (March 2024) requires the accountant to note that the income figure has been arrived at after reviewing the entity’s management accounts, BAS returns for the trailing 12 months, and the business’s bank account statements. Any letter that simply repeats the previous year’s taxable income without adjusting for one-off expenses or owner drawings will be rejected by all six major alt-doc lenders.
Trading Status and Entity Structure
The letter must confirm the legal entity, its ABN, and the date of registration. Resimac policy (v11.3, February 2024) requires the entity to have been registered for GST for a minimum of 12 months if using BAS-level income evidence; 24 months if the accountant’s letter is the sole income document. The accountant must also certify that the business was actively trading at the date the letter is signed. La Trobe Financial’s Product Program Guide, Issue 23 (January 2024, page 47) stipulates the wording “I confirm the entity is currently trading and has not ceased operations or applied for de-registration.” A letter missing the phrase “currently trading” will trigger an automatic request for further documents, adding a minimum of three business days to the verification timeline.
Professional Credentials and Independence
All lenders require the letter to be on the accountant’s business letterhead, dated, and signed by a person holding a current practicing certificate or membership of a recognised professional body—CPA Australia, Chartered Accountants Australia and New Zealand, or the Institute of Public Accountants. Liberty Financial’s Low Doc Application Kit (effective 4 December 2023) explicitly states the accountant must not be a relative of any borrower and cannot have a financial interest in the borrower’s business. Pepper Money’s low-doc application checklist, updated September 2023, rejects letters from registered tax agents who are not also qualified accountants, ending the previous latitude that allowed BAS agents to certify income for loans above 60% LVR.
Lender-by-Lender Interpretations
Pepper Money’s Tiered Verification
Pepper Money now splits its low-doc offering into two tiers. For loans up to 70% LVR, a BAS-only pathway remains possible, but the accountant letter option becomes mandatory for 70.01%–80% LVR. The letter must reconcile the declared income with the four most recent quarterly BAS statements, and the accountant must attest that they have sighted the ATO’s integrated client account to verify no outstanding lodgements. Pepper’s Low Doc Product Guide v3.2 (1 March 2024) introduces a specific requirement: “The accountant must note the period for which the BAS returns have been prepared and confirm that the BAS figures align with the business bank statements for the same period.” If the declared income implies a gross turnover above $75,000 per annum, the entity must be GST-registered—a point often missed in start-up letters.
Liberty Financial’s Hybrid Approach
Liberty allows an accountant letter to be combined with six months’ business bank statements instead of quarterly BAS, but only when the letter includes month-by-month income breakdowns. Liberty’s Low Doc Application Kit section 6.2 stipulates that the accountant “has reviewed the trading statements for the period [commencement date] to [end date]” and that the monthly average income derived from those statements aligns with the declared annual figure. Liberty’s credit team will manually cross-reference the account’s actual credits against the letter’s monthly estimate; a variance greater than 15% on any single month triggers a serviceability override. The buffer applied on Liberty alt-doc loans is 3.25% above the contracted rate, 25 basis points above the APRA minimum, reflecting an internal risk weighting adjustment introduced in November 2023.
Resimac’s Strict BAS Reconciliation
Resimac’s alt-doc pathway is anchored to a principle of “triangulation”: the accountant’s letter, the lodged BAS, and the borrower’s business transaction history must align within a 10% variance band. The accountant letter must list the gross receipts, GST, and net income for each of the four lodged BAS periods and then annualise the total. Resimac’s Credit Policy v11.3, paragraph 5.3.4, requires the letter to state: “The annualised income of $X is calculated as the sum of [four quarterly figures] and represents a reasonable projection of future income.” If the business is seasonal, the accountant must provide a separate note explaining the pattern and confirming that the annualised figure is not inflated by a peak quarter. Letters that simply take the highest quarter and multiply by four are singled out in Resimac’s internal audit reports and result in immediate declines.
Brighten and Bluestone: The Add-Back Discipline
Brighten’s policy permits a higher maximum LVR of 80% for well-documented self-employed loans, but it demands that every add-back in the income calculation be itemised. The letter must separate depreciation, one-off asset write-offs, discretionary personal expenses run through the entity, and interest costs that will cease after refinancing. Brighten’s April 2024 policy update states: “Income must be stated net of all non-cash add-backs unless those add-backs are explicitly listed and quantified.” Bluestone similarly requires the accountant to disclose if the income figure includes COVID-era government grants or other temporary support; if those grants comprised more than 10% of declared income, the letter must confirm they are no longer being received and the business has maintained turnover without them.
The BAS Reconciliation Trap
The single most frequent cause of an accountant letter being rejected is a mismatch between the letter’s declared income and the figures lodged with the ATO in a corresponding BAS. By March 2024, all six major alt-doc lenders had integrated ATO income-confirmation services into their verification workflow, meaning the credit assessor can check whether the declared income is broadly consistent with the gross receipts reported on the business activity statement. A letter that claims an annualised income of $180,000 but corresponds to four BAS lodgements showing combined gross receipts of $150,000 will fail because the implied net profit margin would exceed 100% after standard expense deductions. The lender will not “correct” the figure; it will request a revised letter or decline the application.
To avoid this, the accountant must either use the lodged BAS figures as the income base and then explain any add-backs that lift the figure, or use a management-account approach and provide the unaudited profit-and-loss statement behind the income calculation. Liberty’s hybrid option is designed for the latter scenario, but the application must be flagged as “accountant letter plus management accounts” at lodgement. Bluestone’s pre-assessment checklist, updated 5 February 2024, asks explicitly: “Has the broker reconciled the declared income with the four most recent lodged BAS? If variance >10%, provide a written explanation from the accountant.” Brokers who submit an accountant letter without a matching reconciliation are now seeing an “RTR” rate above 30%, according to internal aggregator data from one major group.
When the Letter Replaces Tax Returns: The 24-Month Rule
A borrower who cannot produce two years’ lodged tax returns—common among start-ups and recent ABN holders—can use an accountant letter as the primary evidence of income only if the entity’s ABN has been registered for at least 24 months and the business has been registered for GST for at least 12 of those months. Resimac and La Trobe Financial both enforce this minimum. Pepper Money shortens the threshold to 12 months’ ABN and 12 months’ GST registration for self-employed borrowers with an unencumbered residential property as security, provided the LVR is capped at 60%. The accountant letter must then state: “The business has been trading for [X] months and has generated the declared income consistently over the trailing [X] months.” Letters that omit the trading duration will not be accepted as a substitute for tax returns.
The 24-month mark is not arbitrary; it aligns with APRA’s prudential guidance on loan origination under APS 220, which requires lenders to assess “a borrower’s capacity to service the loan over a period of economic stress.” A business trading for fewer than two full financial years carries significantly higher income volatility, and the lenders that do accept shorter histories—such as Brighten at 12 months—apply a 0.50% loading to the serviceability floor rate, lifting the actual assessment rate to around 9.50% p.a. on a typical variable loan as of June 2024.
The Regulatory Backbone: Why the Buffer Made the Letter Binding
The APRA letter of 6 October 2021, effective 1 November 2021, raised the minimum serviceability buffer for residential mortgage lending from 2.5 to 3.0 percentage points above the loan product rate. That single regulatory act quietly transformed the way alt-doc lenders calibrate income. For a self-employed borrower declaring $150,000 of income through an accountant letter, a 0.5-percentage-point increase in the buffer reduces maximum borrowing capacity by approximately $45,000 on a 30-year principal-and-interest loan. Lenders responded by demanding that the income figure in the accountant letter be defensible and consistent with tax-office records, because any overstatement that slips through the verification process now creates a larger capital risk under the higher buffer.
ASIC’s targeted review of non-bank lending practices, published as Report 761 in March 2023, found that 12% of low-doc loans sampled could not demonstrate adequate verification of the borrower’s income. In response, the specialist lenders introduced the policy tightening detailed above. ASIC did not mandate a specific letter format, but its finding that “income verification practices varied significantly and were not always well-documented” prompted lenders to codify what the accountant letter must contain, down to the exact phrasing of the trading-status confirmation. As a result, an accountant’s letter in 2024 is not a summary opinion; it is a structured attestation that maps to a lender’s credit underwriting checklist.
Actionable Takeaways
A self-employed borrower preparing an alt-doc application should treat the following points as a pre-submission audit:
- Obtain the lender’s current template. Pepper, Liberty, and La Trobe each publish a recommended letter format in their broker portals. The borrower should ask their broker to forward the exact template before the accountant drafts the letter; using a generic letter increases the chance of a compliance query by more than 50%, based on broker feedback.
- Reconcile the declared income with lodged BAS figures. If the accountant’s figure is more than 10% above the annualised gross receipts from lodged BAS, the letter must include a line-by-line explanation of the uplift. Without that explanation, the application is almost certain to be suspended for additional documentation.
- Confirm trading status in the required words. The phrase “the entity is currently trading and has not ceased operations” must appear verbatim in the letter, along with the ABN, GST registration date, and the period of trading history.
- Check the accountant’s credentials against lender policy. A registered tax agent without a CPA/CA/IPA qualification is acceptable only on BAS-only applications up to 60% LVR at Pepper and is rejected outright by Liberty and Resimac.
- Include a monthly breakdown if using business bank statements. For a Liberty hybrid application, the letter needs a table showing monthly income estimates for the six-month period, and those estimates must sit within 15% of the corresponding bank statement total credits. Brokers should run the Red Shield or Quickli calculator with the buffer correctly set before lodgement, noting the effective floor rate and the chosen lender’s buffer margin.
Applying that checklist will not guarantee approval, but it will eliminate the document deficiencies that now account for the majority of alt-doc application delays. In an environment where every 0.25% movement in the serviceability calculation erases a slice of a borrower’s target price point, a properly structured accountant letter is the cheapest form of capacity preservation available to a self-employed applicant in June 2024.