Services / Investor lending

Investor lending — three structural spreads that decide borrowable.

Investor lending isn't a rate decision. It's a structural decision — and three structural levers (rental income shading, the 95% LVR investor cliff, negative gearing add-back methodology) produce a $300k+ spread in borrowing capacity on the same file depending on which lender writes it. The right lender on the day is policy-determined, not rate-determined.

Run the spread on your investor file first

The investment borrowing capacity calculator takes your household income, existing debt, gross rental income, property type and target LVR — and uses lender policy assumptions to show how borrowing capacity may vary across the panel.

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Signature insight

Take an investor with $44,200 gross rental income (a typical $850k property at 5.2% yield) on standard long-term lease. The assessable rental income each lender will use varies by $11,050:

NAB Tailored at 85% shading = $37,570. Mainstream panel at 80% shading = $35,360. Short-stay (Airbnb/Stayz) at 60% shading at most lenders = $26,520. Mining-town postcodes at 70% = $30,940.

At a 7× DTI multiplier feeding into household income, that $11,050 difference is $77,350 of borrowing capacity from rental shading alone. Layer in the 95% LVR investor cliff (Bank of Melbourne may be one of the few mainstream options above 90%) and negative gearing add-back methodology ($25-40k spread on the same tax shield) and this may result in a significant spread on identical investor files. Lender selection can have a greater impact than rate alone on some investor files.

01.

The three structural spreads

These are the three structural levers that decide which lender writes the investor file and how much they'll lend. None of them show up on a rate-comparison table; all three are policy decisions that vary materially by lender.

Rental income shading

Spread 1 · the load-bearing variable.

Most panel lenders shade gross rent by 20% (use 80%) for long-term lease properties — the shaded portion covers vacancy, rates, insurance, maintenance, management. NAB Tailored is the outlier at 85%. Short-stay (Airbnb/Stayz) gets further shading: 60-70% at most mainstream lenders; outright declined at some. Mining-town and regional postcodes may apply additional shading. Property type matters more than rent quality.

On gross rent of $44,200 (standard long-term lease), assessable rental income spread: $26,520 (60%) → $37,570 (85% NAB). At 7× DTI = $77,350 borrowing capacity spread from this lever alone.

The 95% LVR investor cliff

Spread 2 · the access lever.

Mainstream Big-4-stable lenders cap investor LVR at 90% — LMI capitalised, with the LMI premium materially higher on investor than owner-occupier (typically +0.40-0.60%). Above 90% LVR for investor, one mainstream option may be available: Bank of Melbourne (one Westpac-related brand that may offer 95% LVR investor lending). At 97% LVR, only Credit Union SA writes — the highest investor LVR on the panel, sitting in the non-bank tier. Other lenders may decline, depending on policy and the file.

On $850k investor purchase: BoM 95% LVR access vs waiting 18 months for 90% deposit = ~$73k favouring buy-now in a Melbourne 4%-growth market. CUSA 97% LVR vs Big 4 90% = 9 properties vs 5 over a 10-year acquisition curve at $200k starting deposit. $2.8M portfolio differential from this lever alone.

Negative gearing add-back methodology

Spread 3 · the policy variation.

Negative gearing produces a tax-shield on the difference between rental income and total holding costs. Lenders treat the resulting after-tax benefit differently. Three methodologies on the panel: full add-back (Westpac, CBA — full tax-shield benefit added to assessable income), shaded add-back (NAB Tailored, Macquarie — 50% of the shield), and no add-back (ANZ conservative, Bankwest near-prime — tax shield ignored, only rental income counts).

On a $850k investor file with $5,200 annual tax shield, full add-back lenders count $5,200 of assessable income; no-add-back lenders count $0. At 7× DTI = $25k-$40k borrowing capacity spread on the same return pack.

02.

The investor LVR ladder — who writes what

Each LVR band has a distinct lender shortlist. The cliff at 90% matters most because Big 4 and most mainstream lenders cap there; only a small number of options may be available above this level.

Investor LVR access matrix, May 2026

LVR Best mainstream door LMI / cost note
≤ 60%CBA (MAV tiering may apply in some sub-60% LVR $500k+ scenarios)No LMI · competitive pricing
60-80%Macquarie or INGNo LMI · clean prime-tier
80-90%NAB Tailored (85% rental shading)LMI capitalised · ~$18-26k investor LMI premium
95%Bank of Melbourne — one mainstream option may be availableLMI ~$26-32k investor premium
97%Credit Union SA — the main panel option in this scenarioLMI ~$32-38k · non-bank tier
> 97%None on panelDeposit must reach 3%
03.

How investor files route through the panel

The routing patterns below are how I sequence investor files before lodging. The right first-choice depends on file shape; rental shading and LVR are the two highest-weight variables.

File shape First-choice lender Why it fits Backup
Standard 80% LVR, strong long-term lease income NAB Tailored 85% rental shading vs panel 80% = $77k borrowable uplift Macquarie, ING
90% LVR investor, clean PAYG income Macquarie Offset structure handles cashflow; clean LMI economics Westpac, CBA
95% LVR investor (above 90% cliff) Bank of Melbourne One mainstream option that may be available at 95% LVR investor CUSA (97% LVR if needed)
97% LVR investor with mortgage insurance Credit Union SA May offer the highest investor LVR on the panel (97%) Save more deposit
Multi-property portfolio, mixed LVR, soft-revaluation risk MyState Flat-LVR-curve rate — eliminates cliff risk on portfolio re-pricing Heritage Bank
Short-stay (Airbnb/Stayz) income reliant Heritage Bank or Suncorp Accept short-stay income at 70-75% shading; most lenders decline or hard-shade to 60% La Trobe alt-doc
Debt-recycling structure needed CBA or Macquarie Cleanest split-loan + offset architecture; a split-loan structure that may support deductibility if set up correctly Westpac, AMP
SMSF residential (LRBA) Specialist non-bank tier Big 4 exited SMSF residential 2018-2022; specialist lenders only La Trobe, Liberty
04.

The two structural decisions that compound

Beyond lender selection, two decisions on the loan structure itself compound over 10-30 year holds. Both have real dollar answers; both deserve more thought than the rate.

  1. Interest-only vs P&I. IO is genuinely tax-advantaged on investment property (interest deductible, principal not), but prices ~0.10-0.30% above equivalent P&I and APRA caps the IO term at 5 years for owner-occupier portions. May be appropriate for investors on an accelerating income curve with strong external savings discipline. May not be suitable for investors using IO to mask affordability. The repayment + offset calculator models the cashflow vs total-cost trade-off.
  2. Debt-recycling structure. Progressively converting non-deductible home loan debt into deductible investment debt by redrawing principal repayments into income-producing investments. When structured correctly, deductibility may be supportable. If structured poorly (mingled redraw, deposit-out-of-non-deductible), the ATO may challenge it. Mainstream lenders with clean split architecture: CBA, Westpac, Macquarie, AMP. The structural setup matters more than the rate on the loan itself — get this wrong and you lose the tax shield.

Run your file across the panel

The investment borrowing capacity calculator applies each panel lender's rental shading, DTI cap, and negative gearing methodology to your specific file — and surfaces the spread and the lender that may suit the scenario. Pair with the LMI break-even calculator if 95% LVR is on the table.

Run investment capacity →
05.

Connected lender pages

The investor-relevant lender pages below cover each lender's specific policy levers — rental shading, LVR caps, DTI rules, add-back methodology, debt-recycling support.

NAB Tailored Macquarie CBA Westpac Bank of Melbourne Credit Union SA MyState Heritage Bank ING Suncorp AMP Bank La Trobe

Quick FAQs

How do lenders calculate rental income?

Most shade gross rent by 20% (use 80%) for long-term lease. NAB Tailored at 85%. Short-stay 60-70%. Mining-town further shaded. On $44,200 gross rent the assessable spread is $11,050 = $77k borrowing capacity at 7× DTI.

What's the maximum LVR for investor loans?

Many lenders cap at 90%. Bank of Melbourne may offer 95% investor among mainstream lenders. CUSA may go to 97% in the non-bank tier. Above 97%, panel options may not be available.

What is debt recycling?

Progressively converting non-deductible home loan debt into deductible investment debt by redrawing principal repayments into investments. Requires clean split architecture — CBA, Westpac, Macquarie, AMP. If structured poorly, the ATO may challenge deductibility.

Should I get an interest-only investment loan?

IO is genuinely tax-advantaged on investment property. Prices ~0.10-0.30% above P&I; APRA caps IO term at 5 years on OO portions. May suit accelerating-income investors with external savings discipline. May not be suitable where IO is used to mask affordability.

What's the DTI cap for investors in 2026?

APRA banks 7.0×. Macquarie tightens to 6.5× on investor. Non-banks 7.5-8×. La Trobe lease-doc 8-9× on commercial security.

Which lenders may suit investors?

Depends on file. 80% LVR strong rent: NAB Tailored. 90% LVR clean PAYG: Macquarie. 95% LVR: Bank of Melbourne (one of the few panel options). 97% LVR: CUSA. Multi-property mixed LVR: MyState flat-curve. Short-stay reliant: Heritage or Suncorp.

Richard Esteb

Licensed Finance Broker & Founder, Esteb & Co
ASIC Credit Rep #574071 · Esteb & Co Pty Ltd CR #574070 · ACN 690 323 687 · MFAA #937494

Investor lending is the file shape where lender selection compounds across a portfolio — the same structural decision made at deal one ripples through five more deals. The three structural spreads above are what I assess before lodging on every investor file. Rental shading and the 95% LVR cliff are the two variables that can materially affect outcomes; the negative-gearing add-back methodology is the quieter third. All three refresh against Connective quarterly matrix release — last refresh 14 May 2026.