When you own one rental property and you're thinking about a second, the lending conversation changes. It's not just about finding another lender willing to say yes.
Your borrowing capacity shrinks with each property you add, even when the rent covers the mortgage. Lenders stress-test every loan at a higher rate than you'll actually pay, and they expect you to service every property at once. The income from your rental helps, but most lenders apply a haircut to account for vacancy and maintenance. Some will only recognise 80 per cent of the rent. Others drop it to 70 per cent if you're using interest-only repayments or if the property sits in a postcode they consider volatile.
If you're living in Lakelands and the property you want to buy is nearby, you're working in a market where the median has moved quickly over the past few years. That growth helps when you're using equity to fund the next deposit, but it also means you're buying into a suburb where lenders are already awake to price movement. They'll look at your loan-to-value ratio closely, and if you're trying to avoid Lenders Mortgage Insurance on the new purchase, you'll need to show enough usable equity in your existing properties or bring cash to the table.
Using equity to fund the next deposit
You can borrow against equity in a property you already own without selling it. Most lenders will allow you to access up to 80 per cent of the property's current value, minus what you still owe. If your Lakelands property is now worth more than when you bought it, that gap can be enough to fund a deposit and cover costs on the next one.
Consider a buyer who purchased in Lakelands a few years ago. The property has risen in value, and after requesting a valuation through their broker, they find they have around $90,000 in accessible equity. That's enough to cover a 10 per cent deposit and settlement costs on another property in a nearby growth corridor without needing to save again from scratch. The lender splits the existing loan into two parts: one secured against the original property, one secured against the new purchase. The rental income from both properties is factored into serviceability, but only after the lender applies a discount and adds holding costs like body corporate fees, council rates and an allowance for vacancy.
How lenders calculate your borrowing capacity across multiple properties
Each lender runs the same basic calculation but weights the inputs differently. They take your gross income, subtract your living expenses, then subtract the cost of servicing every loan you hold or plan to take on. The serviceability buffer adds three percentage points to the actual interest rate, so a loan at 6.2 per cent is tested at 9.2 per cent. If you hold three investment loans and a home loan, all four are stress-tested at that higher rate.
Rental income is added back in, but not at 100 per cent. A property generating $550 per week might only contribute $440 per week to your serviceability after the lender applies their shading. If the property is brand new or in an area with high vacancy, some lenders will shade even harder. The debt-to-income cap introduced in February this year also limits how much total debt you can carry relative to your household income. Most lenders will not approve a loan if your total borrowings exceed six times your gross annual income unless you fall within the small portion of lending they're allowed to write above that threshold.
This is why two buyers with the same salary and the same deposit can have completely different borrowing limits once you account for how many properties they already own and how each lender treats rental income.
Interest-only loans and how they affect portfolio growth
An interest-only investment loan lets you pay just the interest portion for a set period, usually up to five years. The loan balance doesn't reduce, but your monthly repayment is lower. That frees up cash flow, which can be useful if you're holding multiple properties and want to keep your serviceability headroom open for the next purchase.
The downside is that lenders treat interest-only loans more cautiously when you apply for subsequent finance. They assume you're not reducing debt, so they apply a stricter income test and may reduce the amount of rental income they're willing to recognise. If you're planning to buy a third or fourth property, moving one of your earlier loans from interest-only to principal and interest can improve your borrowing position, even though your repayment increases.
Some investors keep their home loan on principal and interest while holding investment loans interest-only, because the interest on the investment debt is tax-deductible and the interest on the home loan is not. That structure makes sense when you're trying to maximise claimable expenses, but it needs to be set up correctly from the start. Refinancing a mixed-purpose loan later to separate the investment portion can trigger complications with what the ATO allows you to claim.
What changed in the tax treatment of investment property
From July next year, new rules apply to residential rental properties purchased after May this year. If you buy an established dwelling after that date, any net rental loss can only be offset against other rental income or carried forward. You can't use it to reduce your taxable salary or wage income. Properties you already own are not affected, and neither are new builds that meet the government's definition of increasing housing supply.
This affects how you structure your next purchase if you're still building the portfolio. A property that runs at a loss in the early years no longer delivers the same upfront tax benefit unless it's a qualifying new dwelling. The tax settings now favour buyers who either target new construction or focus on properties where the rent is close to covering the mortgage from day one. Some investors in Lakelands are looking at nearby growth areas where land and house packages still qualify, rather than buying established homes in the same suburb they live in.
The capital gains tax discount also changes from the same date, but only on gains that accrue after July next year. Gains you've already made on properties you hold now are locked in under the old rules.
Structuring loans across lenders to keep your options open
You don't need to hold all your investment loans with the same lender. Spreading them across two or three can give you more flexibility when one lender tightens their policy or when you want to refinance part of the portfolio without touching the rest.
Some lenders will only fund up to four properties per borrower. Others have no formal limit but start applying higher interest rates or lower loan-to-value ratios once you pass a certain threshold. If you're already at your limit with one lender, you can often still borrow with another, provided your overall serviceability and debt-to-income position allow it. A broker who works across the full panel can tell you which lenders are still open to your profile without needing to lodge multiple applications.
Another reason to split lenders is cross-collateralisation. If you hold three properties as security under one lender, they can prevent you from selling or refinancing any of them without their approval. Keeping properties with separate lenders means each one is only secured against its own loan, and you can act independently when the time comes to sell or restructure.
Vacancy, holding costs and the rental income lenders actually count
Lenders don't assume your property will be rented 52 weeks of the year. Most apply a vacancy factor, usually between 4 and 8 per cent, depending on the postcode and property type. A unit in a complex with high turnover will be shaded more heavily than a standalone house in an area with long tenancy periods. Some lenders also subtract an estimate for property management fees, insurance and maintenance before they count the income.
If your property in Lakelands is part of a strata scheme, the body corporate levy is also deducted from your income for serviceability purposes. Lenders treat those fees as a fixed cost, the same way they treat your home loan repayment. If the levy is $1,800 per quarter, that's $7,200 per year that reduces what you can borrow on the next property, even though it's paid from the rental income.
Understanding how each lender treats rental income and holding costs is one of the more useful things a broker does when you're scaling a portfolio. A lender who recognises 80 per cent of the rent and allows a lower vacancy assumption will always give you a higher borrowing limit than one who only recognises 70 per cent and assumes two months of vacancy per year.
When refinancing part of the portfolio makes sense
Once you own more than two properties, refinancing becomes a tool for freeing up equity or reducing the interest rate on older loans that are no longer competitive. You don't need to refinance everything at once. Moving one property to a lender with a lower rate or releasing equity from a property that's grown in value can improve your cash flow and your ability to borrow again.
If you took out your first investment loan three or four years ago, there's a chance you're paying a higher rate than what's available now, especially if you've never asked for a discount or if your lender has increased rates for existing customers while offering lower rates to new ones. Refinancing one or two loans while leaving the others in place lets you capture the benefit without the cost and effort of moving your entire portfolio.
The same applies if you need to shift from interest-only to principal and interest to meet a lender's requirement for the next purchase, or if you want to consolidate debt to improve your debt-to-income ratio. A broker can model the impact before you commit, so you know whether the change will actually improve your position or just move the problem somewhere else.
Call one of our team or book an appointment at a time that works for you. We'll look at what you hold now, what you're planning next, and how to structure the lending so each property works in your favour without blocking the one after it.
Frequently Asked Questions
Can I use equity from my Lakelands property to buy another investment property?
Yes. Most lenders will let you borrow up to 80 per cent of your property's current value, minus what you owe. The difference can fund a deposit and settlement costs on the next property without needing to save again.
How do lenders treat rental income when I apply for a second or third investment loan?
Lenders apply a discount to your rental income, usually recognising between 70 and 80 per cent of the rent to account for vacancy and maintenance. They also deduct holding costs like body corporate fees and rates before calculating your borrowing capacity.
What changed in the tax treatment of investment properties from July next year?
Rental losses on established dwellings purchased after May this year can no longer be offset against salary or wage income. Losses can only be used against other rental income or carried forward. New builds that increase housing supply are exempt from this rule.
Should I hold all my investment loans with the same lender?
Not necessarily. Spreading loans across lenders can prevent cross-collateralisation and give you more flexibility to refinance or sell individual properties. It also helps if one lender reaches their limit on the number of properties they'll fund per borrower.
When does refinancing an investment loan make sense?
Refinancing makes sense when you can access a lower rate, release equity for the next purchase, or switch loan structures to improve your borrowing capacity. You don't need to move all your loans at once, just the ones that will have the most impact.
