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The low-doc refinance landscape has shifted sharply since the Reserve Bank of Australia began lifting the cash rate in May 2022. After ten consecutive pauses, the RBA held the cash rate at 4.35% in February 2025, yet non-bank lenders—who dominate low-documentation lending—have repriced their variable rates upward by as much as 18 basis points in the past quarter, pushing the average published low-doc rate to 7.94% p.a. (The Australian Financial Review, 7 February 2025). For self-employed borrowers, the rising cost of existing debt is only one headwind. APRA’s 3% serviceability buffer, unchanged since October 2021, is now biting harder as product rates climb, shrinking maximum borrowing capacities precisely when many sole traders and company directors need to refinance away from expiring fixed-rate terms or expensive legacy products. Meanwhile, specialist lenders are revising their own credit policies—tightening in some areas, widening small windows in others—to attract quality refinance files. Understanding the interplay of income verification methods, maximum loan-to-value ratios (LVRs), and lender-specific debt-to-income (DTI) caps has become the difference between a successful low-doc transfer and a forced sale.
1. The Low-Doc Refinance Equation: How Specialist Lenders Assess Your File
When a self-employed borrower moves a low-doc loan from one lender to another, three core variables dictate approval: equity, the income declaration model, and credit seasoning. The non-bank sector prices each of these aggressively, but policy tweaks can open a door that was closed six months earlier.
Equity and Maximum LVRs Across the Non-Bank Panel
A low-doc refinance requires adequate equity. Even a borrower with pristine repayment history will be rejected if the LVR exceeds a lender’s hard cap. As at early 2025, the specialist tier operates distinct LVR bands:
- Pepper Money’s Low Doc refinance LVR reaches 75% for clean-credit files with no cash out, and up to 75% with cash out up to $75,000 under its 15 January 2025 credit guide.
- La Trobe Financial allows 80% LVR for a straightforward low-doc refinance (no cash out) where the borrower has held an ABN for 24 months and provides a BAS declaration. Cash-out scenarios are capped at 70% LVR.
- Liberty’s Low Doc refinance caps at 75% LVR, with the option of an Alt Doc variant that accepts an accountant’s letter alone for borrowers with two years’ GST registration—still at 75% LVR.
- Resimac’s Alt Doc product sheet dated 23 September 2024 introduced a no-BAS stream: refinance LVR up to 80% for borrowers with a two-year ABN and an accountant’s confirmation that income is consistent with stated revenue.
- Bluestone applies an 80% LVR ceiling for near-prime low-doc refinances where the borrower supplies quarterly BAS and has a clear Equifax score 600 or above; without BAS, the LVR drops to 75%.
- Brighten caps low-doc refinance at 80% LVR for prime-credit borrowers, with added income shading of 30% on declared earnings (effective 1 November 2024).
In every case, LVR is measured against a full valuation, paid by the borrower, and lenders will not accept a desktop or automated model for low-doc properties above 70% LVR.
Income Declaration Models: From BAS to Accountant-Only
Low-doc lenders sort income substantiation into three broad buckets. The strictest path requires six months’ business bank statements and a BAS declaration (Quarterly or Annual), and it typically delivers the highest LVR and lowest rate. Bluestone, Pepper, and La Trobe all favour this model. The mid-tier approach accepts an accountant’s verification of income without additional trading statements, provided the applicant’s ABN has been continuously active for 24 months; Liberty and Resimac’s September 2024 Alt Doc reside here. The lightest documentation stream—often labelled “accountant-only alt-doc”—asks for nothing more than a signed accountant’s letter confirming the borrower’s gross income and ability to service the loan; this pathway exists in Brighten’s product suite but comes with a heavier income shade (30% versus the 20% shade applied to BAS-declared income) and a maximum LVR of 75%.
For refinancing, a borrower already holding a low-doc loan with one lender will typically need to match or upgrade the documentation level to move to a more competitive rate. A La Trobe borrower wanting to switch to Resimac’s no-BAS Alt Doc must produce a fresh accountant’s letter that states income with a date no older than 60 days.
Credit Score and Seasoning Requirements
A low-doc refinance is not a fresh start. Lenders impose strict seasoning rules on the existing loan. Pepper Money demands a minimum 12-month repayment history with no more than one small arrears event—any missed payment exceeding 30 days in the preceding six months triggers an automatic decline. La Trobe’s December 2024 policy update lowered the minimum credit score for its low-doc product to 600 (from 650) for applications with an LVR of 70% or below and a clean repayment record on the existing mortgage. Liberty applies a 12-month seasoning rule and a 620 Equifax threshold, while Brighten will consider a borrower with a default smaller than $1,000 that has been fully discharged for at least six months. However, any unpaid default renders the file ineligible across all specialist lenders, regardless of equity.
2. Serviceability and the APRA Buffer: Why Declared Income Is Not Enough
Even when equity and credit metrics stack up, the loan must pass a serviceability test that has quietly become the main bottleneck for low-doc refinances.
How the 3% Buffer and High Assessment Rates Crunch Borrowing Capacity
Since October 2021, APRA has required lenders to assess the ability to repay at 3 percentage points above the product rate. For a low-doc variable rate of 7.94% p.a., the assessment floor sits at 10.94%, yet many non-banks add a further margin to account for income uncertainty. La Trobe and Bluestone use an assessment rate of the higher of the product rate plus 3% or 11.50% for low-doc files. At 11.50%, a 30-year principal-and-interest repayment on a $500,000 loan commands $4,945 per month. A self-employed borrower declaring $120,000 in assessable income—after the standard 30% shading applied by Brighten or Pepper—nets $84,000, or $7,000 per month gross. Lenders then subtract a conservative living expense estimate (often $2,800 for a single applicant) and existing liabilities. The surplus rarely covers a loan above $350,000.
Debt-to-Income Caps in Practice
The maximum DTI permitted for a low-doc refinance varies by lender. Pepper Money’s Low Doc guide sets a 7x DTI cap, Liberty’s Alt Doc caps at 6x, Resimac allows 7x for borrowers with clean credit and an LVR below 75%, and La Trobe imposes no explicit DTI ceiling but uses a net-surplus ratio that effectively limits the multiple to 7x for most files. However, the serviceability test almost always bites before the DTI cap. A $144,000 declared income (post-shade $100,800) at a 7x DTI gives a theoretical maximum loan of $705,600. Serviceability at an 11.50% assessment rate, after $2,800 monthly living expenses and a $500 car lease, restricts the actual figure to around $420,000. For self-employed borrowers moving a $600,000 balance, that gap is fatal unless the existing lender’s rate is punitive and the new loan is cheaper by at least 200 basis points—a scenario that no longer exists given the rate repricing in early 2025.
Cash-Out Constraints
Any cash-out component above $20,000 requires the borrower to declare a specific purpose—debt consolidation, business expansion, or a known expense—and lenders reduce the maximum LVR by 5–10 percentage points. Pepper Money’s 15 January 2025 increase in cash-out to $75,000 (from $50,000) applies only to files with an LVR at or below 70% and a loan size above $250,000. La Trobe limits cash-out to 70% LVR, while Brighten will not allow cash-out on a low-doc refinance unless the borrower provides full trading financials, effectively converting the loan to a full-doc assessment.
3. Lender-by-Lender Refinance Snapshot: Where to Place Your File in 2025
Pepper Money
Pepper’s Low Doc product remains the broadest pathway for self-employed refinancers with a solid equity cushion. The 15 January 2025 Credit Guide raised the refinance cash-out limit to $75,000, matched only by La Trobe among major non-banks. Pepper accepts BAS or accountant declaration and applies a 20% shading factor on stated income. Maximum LVR with cash-out is 70% for metro properties; without cash-out, LVR rises to 75%. The minimum credit score is 550 for LVR ≤ 60%, climbing to 600 for LVR above 60%. Pepper charges a risk fee of 0.75% of the loan amount on top of standard establishment costs when the LVR exceeds 70%.
La Trobe Financial
La Trobe’s low-doc refinance option is engineered for borrowers with a short credit blemish. Its 3 December 2024 policy reduction of the credit score floor to 600 at LVR ≤ 70% means a self-employed applicant with a single, satisfied small default can still secure a loan at a rate around 7.69% p.a. (variable). La Trobe assesses income via an accountant’s letter with a BAS declaration, applying a 25% income shade. The lender’s maximum LVR reaches 80% for a pure refinance without equity release, and it imposes a 6-month seasoning requirement on the existing mortgage. La Trobe does not charge LMI but levies a credit risk premium for LVRs above 65%, starting at 0.50% of the loan sum.
Liberty and Resimac
Liberty’s Alt Doc and Resimac’s September 2024 Alt Doc product both allow a refinance using an accountant’s letter alone, removing the BAS friction that trips up many sole traders. Liberty caps LVR at 75%, while Resimac goes to 80% for clean-credit borrowers with a two-year ABN. Liberty uses a 25% shade on stated income, Resimac a 20% shade. The rate differential is notable: Liberty’s low-doc variable sits around 7.95% p.a., Resimac’s Alt Doc at 7.79% p.a. as at February 2025, reflecting different funding costs. Both lenders will accept a partial refinance (leave a second-ranking loan in place with the existing lender) provided the total LVR across both loans does not exceed the permissible cap.
Bluestone and Brighten
Bluestone’s near-prime low-doc variable rate was reduced to 7.49% p.a. for LVR ≤ 70% in October 2024, making it the cheapest specialist variable rate for self-employed refinancers with strong equity. The lender requires a BAS and bank statement trail but will accept an accountant’s declaration as a secondary support. Brighten’s low-doc product, repriced in November 2024, carries a 30% income shade, the highest among mainstream non-banks, but compensates with a maximum LVR of 80% and no cash-out restriction when LVR is below 70%. Brighten will also consider sole traders who have been operating for only 12 months—the shortest ABN period in the sector—at an LVR of 65%.
4. Executing the Transfer: From Valuation to Settlement
Documentation Checklist
A low-doc refinance application must include the following, regardless of lender: a completed asset-and-liability statement, evidence of an active ABN (ABR lookup dated within 14 days), a signed income declaration (BAS or accountant letter), six months’ bank statements for the loan to be refinanced showing on-time payments, and a signed consent for a credit check. If the loan involves cash-out above $20,000, the borrower must provide a brief written purpose statement.
The Broker’s Role
Specialist lenders do not accept direct applications for low-doc loans. A broker accredited with the lender’s panel must submit the file, often through a pre-approval pathway that allows a credit assessor to review the declaration and serviceability before a costly valuation is ordered. An experienced broker will also know that Resimac’s Alt Doc product cannot be used for a refinance where the property is used for short-term accommodation or the borrower holds more than two investment properties—niche exclusions that cause instant decline.
Valuation and LMI
For any low-doc refinance above 70% LVR, lenders require a kerbside or full valuation by an approved panel valuer. The cost, typically $350–$700, is paid by the borrower. If the valuation comes in lower than expected—a common outcome in a softening capital-city market—the LVR can spike above the policy cap, killing the application. Lenders mortgage insurance (LMI) is rarely available on low-doc loans above 75% LVR; Genworth and QBE do not insure specialist non-conforming loans, so the lender self-insures with a risk fee. This fee costs 0.50%–1.25% of the loan amount and is capitalised into the loan amount at settlement.
5. What Borrowers Must Do Now: Five Steps to a Low-Doc Refinance
- Lock down a valuation before applying. Order an upfront kerbside valuation from a panel valuer to confirm the property’s market value. If the result pushes LVR above your target lender’s cap, a refinance is impossible regardless of income.
- Upgrade your documentation. If your existing low-doc loan relies on a three-year-old accountant letter, obtain a fresh letter dated within 60 days that explicitly states gross income and the accountant’s belief you can service the new debt. For lenders that accept BAS, pull the most recent quarterly BAS and bank statement.
- Target the right LVR band. With equity below 20% (LVR > 80%), a low-doc refinance is off the table. At 75–80% LVR, La Trobe, Resimac, and Brighten are the only realistic options; at 70% and below, Pepper and La Trobe provide the lowest rates and cash-out flexibility.
- Close small arrears immediately. A single missed payment of 30 days in the last six months will scuttle an application with Pepper and Liberty. Pay any outstanding amounts, and if a default remains, settle it and wait the required seasoning period—six months for Brighten, 12 months for La Trobe.
- Engage a broker who places volume with non-bank lenders. The policy differences between Pepper Money’s January update and Resimac’s September Alt Doc are material. A broker with active accreditations can pre-screen the file against four or five lenders simultaneously, saving weeks and avoiding credit inquiries that damage a score.