Do you know how property investment works for IT managers?

From structuring your first purchase to scaling a portfolio, here's what IT project managers need to know about investment property finance.

Hero Image for Do you know how property investment works for IT managers?

Investment property finance works differently to home loans

Lenders assess investment loans separately from owner-occupied lending because the risk profile is different. You're relying on rental income to cover the mortgage, not just your salary, and vacancy periods are factored into serviceability calculations. The deposit requirement is typically higher, most lenders want at least 10 per cent for investment purposes, and interest rates on investor products sit 0.3 to 0.5 percentage points above owner-occupier rates at the same loan amount. The serviceability buffer also applies: lenders test your ability to service the loan at a rate 3.0 percentage points above the product rate. For IT project managers with variable income from bonuses or contract work, how you present your income structure matters as much as the total figure.

Consider someone earning a base of $140,000 with a $30,000 bonus component looking to purchase their first rental property. The lender will assess the bonus differently depending on whether it's discretionary or contractual, and how long it's been paid. Most lenders will include bonus income if it's been received for two consecutive years, though some will accept it after one year if it's written into your contract. Your understanding of how lenders assess your income directly affects how much you can borrow for investment purposes.

Interest-only structures reduce holding costs during the accumulation phase

Most investors choose an interest-only repayment structure for the first five years of an investment loan. You're only paying the interest portion of the loan, which reduces monthly repayments and frees up cash flow for other purposes, whether that's building a deposit for a second property or covering periods when the property sits vacant. Interest-only periods typically run for one to five years before reverting to principal and interest repayments. Some lenders will extend beyond five years, though this usually requires reapplication and a fresh serviceability assessment.

The cash flow difference is tangible. On a $600,000 loan at current variable rates, the monthly interest-only payment might be around $3,200, while the equivalent principal and interest payment could be closer to $3,900. That $700 difference per month can be redirected into an offset account, used to meet other commitments, or saved toward your next deposit. Losses on the property, including the interest paid, can be offset against your other income under the current negative gearing rules for properties held before mid-May of last year. For properties acquired more recently, the rules differ depending on whether you're buying an established dwelling or an eligible new build. You can read more about structuring interest-only loans for tech industry workers if you're weighing up repayment options.

Ready to get started?

Book a chat with a Finance & Mortgage Brokers at Tech Home Loans today.

Fixed or variable rates depend on your risk tolerance and portfolio plans

Fixed rates offer certainty for a set period, usually one to five years, while variable rates move with the market and typically offer offset account functionality. If you're planning to hold one property long term and want predictable repayments, a fixed rate gives you that. If you're scaling a portfolio and want flexibility to make extra repayments or redraw funds, a variable rate with an offset account is usually the more practical option. Some investors split the loan, fixing a portion for stability and leaving the rest variable for flexibility.

Variable rates also give you access to features like offset accounts, which reduce the interest charged without making actual repayments. If you're accumulating cash for your next deposit or holding funds from a recent RSU vest, parking that money in an offset account linked to your investment loan reduces the interest you pay while keeping the funds accessible. Fixed rates generally don't allow offsets, and breaking a fixed rate early can trigger significant costs if rates have moved in the lender's favour since you locked in.

Debt-to-income limits now cap high-ratio lending

From February this year, lenders can only write 20 per cent of new investor loans to borrowers with a total debt-to-income ratio of six times or more. If your total borrowings across all properties and debts exceed six times your gross annual income, you may find your options narrower than they were 12 months ago. This doesn't mean you can't borrow, but it does mean the lender has less room to approve your application if your debt levels are already high relative to your income.

In our experience, IT project managers often have strong income but also carry other commitments, whether that's a mortgage on a principal place of residence, a car loan, or HECS debt. Each of those liabilities reduces your borrowing capacity. If you're planning to build a portfolio, structuring your first purchase conservatively gives you more headroom for subsequent properties. The DTI limit applies at the time of application, so paying down existing debt or increasing your income before applying can shift you below the threshold.

Rental income is shaded by lenders when calculating serviceability

Lenders don't accept 100 per cent of the rental income when assessing serviceability. Most will take 80 per cent of the expected rent to account for vacancy, maintenance, and property management costs. Some lenders are more conservative and shade it further. If the property is expected to generate $600 per week in rent, the lender might only count $480 per week toward your ability to service the loan. This shading can affect how much you can borrow, particularly if you're relying on the rental income to justify the new commitment.

You also need to consider periods when the property is vacant. A rental property in a high-demand area with low vacancy rates will perform differently to one in an oversupplied market. Lenders won't usually ask for vacancy rate data during the application, but they build it into their assessment by shading the income. If you're holding multiple properties, each rental income stream is shaded separately, and the cumulative effect can limit your ability to add another property to the portfolio. Refinancing an existing investment loan to access better shading policies or improved rental income recognition is one way to restore borrowing capacity, and you can explore that through investment loan refinancing for tech industry workers.

Negative gearing rules changed in mid-2026 for new purchases

Properties held or under contract before the evening of 12 May last year continue to allow losses to be deducted against all income, including salary. For established properties acquired after that date, losses can only be offset against other income from residential properties, including capital gains when you sell. Unused losses carry forward to future years. The change doesn't affect properties classified as eligible new builds, which retain full negative gearing treatment regardless of purchase date.

An eligible new build includes a dwelling constructed on previously vacant land or a property where the rebuild increases the total number of dwellings on the site. A knock-down rebuild that results in the same number of dwellings doesn't qualify, nor does a substantial renovation. If you're considering your first investment purchase and trying to decide between an established property and a new build, the tax treatment is one factor among several. New builds may offer depreciation benefits and access to full negative gearing, but they're often priced at a premium and may not deliver the same capital growth as an established property in a tightly held suburb.

Capital gains tax treatment is also changing from mid-2027

From 1 July next year, the 50 per cent discount on capital gains for investment properties will be replaced by cost base indexation and a 30 per cent minimum tax rate on real gains. For properties owned before that date and sold after it, gains are split: the portion accruing before 1 July next year is taxed under the current rules, and the portion after that date is taxed under the new rules. Eligible new builds retain the option to choose between the old discount and the new indexed method at the time of sale, giving you flexibility depending on which structure delivers the lower tax.

The indexation model taxes you only on gains above inflation. If you bought a property for $700,000 and sold it years later for $900,000, but inflation over that period added $150,000 to the indexed cost base, you'd only pay tax on $50,000 of real gain. The 30 per cent minimum rate applies where your effective tax rate on that gain would otherwise fall below 30 per cent. Investors receiving certain government payments, including the Age Pension or Disability Support Pension, are exempt from the minimum rate in the year they receive that payment. The CGT changes don't alter how you structure the loan itself, but they do affect the after-tax return when you eventually sell, which feeds into whether you're building a long-term hold portfolio or planning to trade properties over a shorter cycle.

Refinancing an investment loan can improve cash flow or access equity

Once your property has increased in value or you've paid down the loan, refinancing lets you access equity for your next purchase or switch to a lender offering better rates or features. Equity release works by increasing the loan amount against the property's current value and using the additional funds as a deposit elsewhere. Lenders will reassess your serviceability based on the new loan amount, your current income, and the rental income from the existing property.

Refinancing can also be used to move from a higher rate to a lower one, particularly if you've been with the same lender for several years and your rate has drifted above what's available to new customers. Lenders typically reserve their sharpest pricing for new business, so staying with your current lender without negotiating often means you're paying more than you need to. Refinancing does involve application, valuation, and sometimes discharge fees, so the rate improvement needs to be sufficient to justify the cost. For IT project managers with strong income and a clean credit file, refinancing is often one of the most direct ways to improve portfolio cash flow or fund the next acquisition. You can read more about structuring this at investment loans for tech industry workers.

If you're considering property investment and want to understand how your income, existing commitments, and portfolio plans affect what you can borrow and how the loan should be structured, call one of our team or book an appointment at a time that works for you.

Frequently Asked Questions

Can I use an interest-only loan for an investment property?

Yes, most investors choose interest-only repayments for the first one to five years to reduce holding costs and improve cash flow. After the interest-only period ends, the loan reverts to principal and interest repayments unless you reapply for an extension.

How much deposit do I need for an investment property?

Most lenders require at least 10 per cent deposit for investment purposes, though some will lend at higher loan-to-value ratios if you're willing to pay Lenders Mortgage Insurance. A larger deposit generally improves your interest rate and borrowing capacity.

Do lenders count all of my rental income when assessing serviceability?

No, lenders typically shade rental income to 80 per cent of the expected rent to account for vacancy, maintenance, and management costs. Some lenders are more conservative and may shade it further, which affects how much you can borrow.

What changed with negative gearing in 2026?

For established properties acquired after 12 May 2026, losses can only be offset against income from other residential properties, not against salary or wages. Properties held before that date and eligible new builds retain full negative gearing treatment.

Can I refinance an investment loan to access equity for another property?

Yes, refinancing allows you to increase the loan amount against your property's current value and use the released equity as a deposit for your next purchase. Lenders will reassess your serviceability based on the new loan amount and your current income.


Ready to get started?

Book a chat with a Finance & Mortgage Brokers at Tech Home Loans today.