Investment property lending in Sydney has changed significantly in the past few years. Regulatory changes, rising rates, and tighter serviceability rules have made it harder — but not impossible — for investors to get good deals. The problem is, most investors still go to their existing bank first and end up with a deal that’s not even close to the best available.
Here’s what the banks quietly don’t mention.
Rental Income Doesn’t Count at Face Value
If you’re buying an investment property in, say, Blacktown or Parramatta expecting to rent it for $600/week, don’t assume the lender counts $600/week as income. Most lenders apply a rental income shading of 70–80%. They’ll count $420–$480/week in their serviceability calculation, not $600.
This exists because lenders account for vacancy periods, property management fees, and maintenance. It’s reasonable in principle — but if you’re not aware of it going in, your borrowing capacity can look very different on paper to what you expected.
The Serviceability Buffer Hits Investors Harder
APRA requires lenders to assess your ability to repay at 3% above the current rate. On an investment loan at 6.5%, you’re being assessed at 9.5%. For an owner-occupier, that buffer applies too — but they’re not also carrying the shaded rental income issue at the same time.
Investors holding multiple properties get squeezed from both sides: existing investment loans are assessed at the buffer rate, and new rental income comes in at 70-80% shade. This is why someone with two investment properties can sometimes struggle to buy a third even with significant equity and strong income.
Interest-Only Periods — The Clock Is Ticking
Lots of investors took out interest-only (IO) loans five or six years ago, when IO was freely available and rates were lower. Five-year IO periods are now expiring. When that happens, the loan reverts to principal and interest — and repayments jump. On a $700,000 investment loan, the jump from IO to P&I can be $700–$1,000/month.
If your IO period is expiring in the next 12 months, you have a few options: extend IO with the current lender (some will, some won’t), refinance to a new IO term with a different lender, or start P&I repayments and adjust your cash flow. A broker can help you work out which makes sense given your full portfolio position.
Cross-Collateralisation: The Silent Risk
When you use equity from your home to fund an investment purchase, some lenders — particularly the majors — will cross-collateralise both properties. This means they hold both as security under the one loan structure.
The problem: if you want to sell the investment, you need the bank’s sign-off. If one property drops in value, the bank can use both as leverage. You lose flexibility and control. Good brokers structure loans so each property is security for its own loan, keeping them separate and giving you maximum flexibility down the track.
Why Your Existing Bank Is Usually the Wrong Move
Your existing bank knows your full financial position — savings, debts, account behaviour. That sounds like an advantage. In practice, they use that knowledge to assess risk, not to find you a better deal. Their job is to write profitable loans, not to optimise your investment strategy.
They also only offer their own products. If their investment rates are 0.5% above the market average — which happens regularly — they have no reason to tell you. A broker with access to 40+ lenders can compare investment-specific products, IO availability, offset account options, and rates across the full market.
Where Investors Are Looking in Sydney Right Now
The inner west — Marrickville, Dulwich Hill, Ashfield — still pulls strong rental demand from young professionals. Western Sydney, particularly the Blacktown and Liverpool council areas, offers lower entry prices with solid yields relative to purchase cost. The Parramatta CBD corridor remains popular for unit investors due to employment density. Some investors are also looking further out at the Penrith–Blue Mountains fringe for larger land opportunities.
How a Broker Structures Investment Loans Properly
When I work with an investor client, I’m not just finding a rate. I’m looking at:
- Which lenders have the most favourable rental income shading policies
- Whether IO is available and for how long
- How the loan is structured (separate securities, not cross-collateralised)
- Whether an offset account is available on the investment loan
- The full portfolio picture — how does this loan affect borrowing capacity for the next purchase?
Investment lending is not the same as home lending. It needs a different lens.
Planning your next investment property? Talk to Loan Connect first — before you go to your bank. We’ll look at your full position, find the right lender for your situation, and structure it properly from the start. Book a free consultation today.
