Everything You Need to Know About Investment Loans

Investment property finance works differently now than it did a year ago.

If you're considering a rental property in Baulkham Hills or nearby suburbs, the structure of your investment loan affects how much you can borrow, what you can claim, and whether the numbers work over the long run. With negative gearing rules changing from July next year and debt-to-income limits now applying to investor lending, the way you set up your loan has become a decision with actual consequences.

What Changed With Investor Lending in the Past Year

From February, lenders capped investor loans at six times your income for up to 20 per cent of their new lending. The rest must sit below that threshold. This means borrowing capacity for property investors has tightened, particularly if you already carry debt or earn income that varies. The three percentage point serviceability buffer still applies, so lenders assess your ability to repay at a rate three points above the actual product rate.

In practice, someone earning $120,000 with minimal debt might previously have accessed $720,000 or more depending on the lender. Now, unless you fall within the lender's 20 per cent allowance, that figure may be lower. We regularly see investors needing to increase their deposit or adjust their purchase price to fit within the new settings.

How Negative Gearing Rules Affect Investors Buying Now

Any residential property you buy from mid-May onward will be subject to quarantined losses from July next year unless it qualifies as an eligible new build. Quarantined losses can only offset rental income from other properties or be carried forward. You can't use them to reduce your taxable salary or wages.

Consider an investor who buys an established unit in Baulkham Hills this year. Rental income covers most of the holding costs, but interest and other expenses create a small loss each year. Under the previous rules, that loss could reduce taxable income from employment. From July next year, the loss sits in a separate bucket and waits until the investor earns rental profit elsewhere or sells the property. The tax benefit still exists, but it's delayed.

Properties purchased before mid-May are grandfathered. If you already own an investment property or had a contract in place at that time, existing negative gearing rules continue until you sell. New builds that increase the housing supply also retain access to the old rules for the first purchaser.

Interest-Only Loans and When They Still Work

Interest-only repayments reduce monthly outgoings and preserve cash flow, which matters if you're holding a property for capital growth or managing multiple loans. Most lenders offer interest-only periods of up to five years for investors, after which the loan reverts to principal and interest unless you renegotiate.

An interest-only structure can work when rental income is tight, when you're using offset accounts to manage tax, or when you're planning to sell within the interest-only term. It doesn't work if you're relying on loan paydown to build equity or if the reversion to principal and interest will push repayments beyond what you can service.

Baulkham Hills has a vacancy rate that sits below the Greater Sydney average, meaning rental income is generally reliable. That consistency makes interest-only repayments less risky than in areas with higher turnover or longer vacancy periods. Still, you need a plan for what happens at the end of the interest-only term.

Variable vs Fixed Rates for Investment Properties

Variable rates give you flexibility to make extra repayments, use offset accounts, and exit the loan without break costs. Fixed rates lock in your repayment for a set term, which helps with budgeting but removes most of those features.

For investors, offset accounts are valuable because they reduce the interest you pay without reducing the deductible loan balance. Paying down the principal on an investment loan lowers your tax deduction. Parking surplus cash in an offset achieves the same interest saving while keeping the loan balance and deduction intact.

Some investors split their loan, fixing a portion for certainty and leaving the rest variable for flexibility. That structure works if you want protection against rate rises but don't want to lose access to offset or repayment features entirely. The split doesn't need to be 50-50. You can weight it based on your risk tolerance and cash flow.

Borrowing Capacity and Debt-to-Income Limits

Your borrowing capacity depends on income, existing debts, living expenses, and the lender's serviceability model. The debt-to-income cap adds another layer. If your total borrowing, including the new loan, exceeds six times your gross income, the lender needs to allocate part of their limited high-DTI quota to your application.

In our experience, investors with strong income and low debt often clear the DTI threshold comfortably. Those with several loans, variable income, or higher living expenses may find the cap binds before serviceability does. It's not always obvious which will limit you until the application is modelled.

Baulkham Hills buyers often look at properties in the surrounding suburbs as well, including Castle Hill, Kellyville, and Winston Hills. Prices vary across these areas, but the lending rules apply the same way. A slightly lower purchase price can shift your DTI ratio enough to fit within standard lending limits.

Deposit Size and Lenders Mortgage Insurance

Most lenders require a 20 per cent deposit for investment properties to avoid Lenders Mortgage Insurance. If you're borrowing with a deposit below 20 per cent, LMI applies and the premium gets added to your loan or paid upfront. The premium depends on your loan-to-value ratio and loan amount.

Some investors use equity from their home to fund the deposit on a second property. That approach works if you have sufficient equity and your borrowing capacity can support both loans. Lenders assess the total debt position, not just the new loan in isolation. You also need to account for stamp duty, legal fees, and other upfront costs when calculating how much equity you'll need to access.

Structuring Loans Across a Portfolio

Once you own more than one property, loan structure becomes a portfolio question. Keeping loans separate gives you flexibility to sell individual properties without unwinding your entire position. Cross-securitising properties can unlock better rates or higher borrowing capacity, but it ties your assets together and complicates future changes.

As an example, an investor with a home in Baulkham Hills and a rental property in Parramatta might secure both under a single facility to access a rate discount. If they later want to sell the Parramatta property, the lender may require them to refinance the remaining loan or provide alternative security. Separate loans avoid that issue but may carry slightly higher rates.

There's no universal answer. The structure depends on your growth plan, risk tolerance, and whether you value flexibility over cost.

Tax Deductions and What You Can Claim

Interest on your investment loan is deductible as long as the property is rented or available for rent. So are council rates, strata fees if the property is in a complex, property management fees, landlord insurance, and repairs. Depreciation on the building and fixtures adds another layer of deductions, though the rules around plant and equipment depreciation were tightened a few years ago for second-hand properties.

You can't claim interest on the portion of a loan used for private purposes. If you refinance and pull out equity to renovate your home, that portion isn't deductible even though the loan is secured against the investment property. Loan structure and purpose matter for tax, not just security.

A quantity surveyor's depreciation schedule costs a few hundred dollars and often uncovers deductions worth thousands per year. It's one of the first things investors should arrange after settlement.

When to Consider Refinancing an Investment Loan

Refinancing makes sense when rates have shifted, when your lender's servicing has declined, or when your loan features no longer match your needs. It also makes sense if you've built equity and want to access it for another purchase.

Some investors refinance to consolidate debt, move from interest-only to principal and interest, or switch from fixed to variable as their circumstances change. Others refinance to take advantage of loan features like offset accounts or higher redraw limits that weren't available on their original loan.

Break costs apply if you exit a fixed rate early, and those costs can be significant if rates have fallen since you fixed. Always model the cost of exiting against the benefit of the new loan before committing.

What to Bring to an Investment Loan Application

Lenders assess investment loans differently to home loans. They factor in rental income, but they also apply a discount or haircut to that income to account for vacancies and maintenance. The discount varies by lender, typically between 20 and 30 per cent.

You'll need recent payslips, tax returns if you're self-employed or earn rental income elsewhere, a rental appraisal for the property you're buying, and details of your existing debts and assets. If you're using equity, the lender will require a valuation of the security property.

Most investment loan applications take two to four weeks from submission to formal approval, longer if valuations or supporting documents are delayed. Pre-approval gives you certainty before you make an offer, but it's conditional on the property meeting the lender's criteria.

Call one of our team or book an appointment at a time that works for you. We'll model your borrowing capacity, talk through loan structure, and connect you with lenders across Australia who lend to property investors in Baulkham Hills and surrounding areas.

Frequently Asked Questions