Investment Property Loans in Sydney — What You Need to Know
Investment property lending is assessed differently to owner-occupier loans. Lenders apply stricter LVR caps, higher interest rate buffers, and limit how much rental income they'll use in serviceability calculations. Choosing the wrong loan structure can cost you tens of thousands in unnecessary interest — and the wrong lender can cap your ability to grow your portfolio.
We work with investors at every stage — from first investment property to multi-property portfolios — structuring loans to maximise deductibility, preserve borrowing capacity, and keep options open for future purchases.
The single biggest structural decision for an investor is interest-only vs principal-and-interest. IO keeps your repayments lower, maximises your tax deduction and preserves cash flow — but you need a lender whose IO assessment rate doesn't destroy your serviceability. I run both scenarios for every investor client before we choose a lender.
Interest-Only Investment Loans
Interest-only (IO) loans are the preferred structure for most property investors. By paying only interest during the IO period (up to 10 years with some lenders), you:
- Maximise your tax deduction — interest on an investment loan is fully deductible
- Keep repayments lower, improving cash flow
- Preserve capital for additional deposits or other investments
- Defer principal repayment until the property has (ideally) grown in value
Not all lenders assess IO loans the same way. Some use a higher buffer rate for IO applications, which can significantly reduce your borrowing capacity. We identify lenders whose IO assessment methodology works in your favour.
Worked Example: Sydney Investment Property — IO vs P&I
- Purchase price: $1,200,000
- Loan amount (80% LVR): $960,000
- Interest rate: 6.49% p.a.
- IO repayments (5 years): $5,192/month — fully deductible
- P&I repayments (30 years): $6,062/month — interest component deductible only
- Monthly cash flow saving on IO: $870/month
- Weekly rent (at 4% yield): $923/week
- Estimated negative gearing benefit (32% tax bracket): ~$8,000–$12,000/year
How Lenders Assess Rental Income
Most lenders will use 70–80% of your rental income in serviceability calculations — a "shading" applied to account for vacancy and property expenses. Some lenders are more generous, particularly for properties in low-vacancy markets. We identify lenders who shade rental income favourably for your specific property type and location.
Using Equity to Buy an Investment Property
If you already own your home, you may be able to access equity to fund an investment property deposit without using cash savings. Here's how it works:
- Your home is valued at $1,500,000 with a $600,000 mortgage remaining
- Usable equity (to 80% LVR): $1,200,000 − $600,000 = $600,000
- You draw $250,000 as an equity loan on your home
- That $250,000 funds the 20% deposit on a $1,250,000 investment property
- Total interest on the equity loan is deductible (used for investment purposes)
This strategy — sometimes called equity recycling — can dramatically accelerate your investment timeline. Structuring it correctly is critical: the equity loan must be kept separate from your owner-occupier loan to maintain deductibility.
Portfolio Lending
As you acquire multiple properties, standard lenders often cap out — either due to total exposure limits or declining serviceability. Portfolio lending options include:
- Non-bank lenders: More flexible on multiple investment properties and total LVR
- Professional package loans: Bundle multiple properties under one facility with offset accounts
- Commercial lending crossover: Once portfolio value is sufficient, commercial terms may offer greater flexibility
We map your full portfolio position before recommending a lender — factoring in existing loans, total exposure, and your next intended purchase.
The most common mistake I see from investors is cross-collateralising properties — linking multiple properties as security for a single loan. It simplifies paperwork at the start but creates a tangle when you want to sell one property or refinance. I almost always recommend keeping each property's loan separate, with a clear equity position per property.
Negative Gearing and Tax Considerations
An investment property is negatively geared when the interest and running costs exceed the rental income. The shortfall is deductible against your other income, reducing your tax bill. Key deductible expenses include mortgage interest, property management fees, council rates, insurance, repairs and maintenance, and depreciation on the building and fixtures (for newer properties).
We always recommend working with a property-specialist accountant alongside your broker — the loan structure affects your tax outcome, and both need to be aligned.