Investment Loans Aren't Just Home Loans With a Different Label
An investment loan works differently from your owner-occupied home loan because lenders assess the risk differently and the tax office treats the debt differently. The rental income from your property affects how much you can borrow, the interest rate you'll pay is typically higher than for an owner-occupied loan, and you can claim the interest and other property costs as tax deductions.
Consider a sparkie earning $95,000 a year who wants to buy a $450,000 unit in Logan to rent out. The bank won't just look at their wage. They'll factor in the expected rental income, but they'll discount it by around 20% to account for vacancy periods and maintenance costs. If the unit should rent for $420 a week, the lender will only count about $336 of that when working out borrowing capacity. They'll also add the loan repayments, council rates, and body corporate fees to your existing debts when calculating what you can afford. This means your borrowing power for an investment property is usually lower than what you could get for a home you'll live in yourself.
Interest Only Versus Principal and Interest Repayments
Most property investors choose interest only repayments for the first five years because it keeps the monthly cost down and maximises their tax deductions. When you only pay interest, your loan balance stays the same, but your cash flow is stronger and you're claiming more deductible interest against your rental income.
A $360,000 investment loan at current variable rates on principal and interest might cost around $2,400 per month. The same loan on interest only drops to roughly $1,500 per month. That $900 difference matters when you're covering the gap between rent and all your property costs. After the interest only period ends, you can usually extend it, refinance to another lender, or switch to principal and interest if your circumstances have changed. Most tradies we work with prefer keeping the payments low while they're building equity through price growth rather than forced repayments.
The rental income rarely covers all your costs in the first few years. That shortfall is called negative gearing, and it reduces your taxable income. You're essentially paying to hold an asset that should increase in value while getting a tax benefit for the loss.
What Lenders Actually Look At When You're Self Employed
Lenders want to see two years of tax returns for self-employed tradies, but what matters is the income you declared, not what you actually earned. If you've been aggressive with deductions and shown $60,000 taxable income when you actually turned over $140,000, the bank will only count the $60,000.
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This catches a lot of tradies who've minimised tax for years and then want to borrow for an investment property. You can't have it both ways. Some lenders will accept a low doc approach using your ABN statements or BAS, but you'll pay a higher rate and need a larger deposit. The smarter play is to talk to a broker before you lodge your next tax return so you can structure your income properly if you're planning to buy within the next 12 months.
Your Deposit Size Changes Everything
You need at least a 10% deposit for most investment loans, but if you can get to 20% you'll avoid Lenders Mortgage Insurance and access better investor interest rates. On a $400,000 property, that's the difference between finding $40,000 and $80,000.
A plumber with $150,000 equity in their home can use that instead of saving cash. The lender will let you borrow against your home equity to fund the deposit on your investment property. You'll end up with two loans - one secured against your home, one against the investment - but you haven't had to save for five years to get into the market. The debt on your home becomes tax deductible through a process called debt recycling because you're using it to generate assessable income. You'll want to keep this loan separate from your non-deductible home loan debt so the records stay clean for the tax office.
Variable or Fixed Rates for Investment Loans
Variable rates give you flexibility to make extra repayments, access an offset account, and refinance without penalty. Fixed rates lock in your repayment amount for one to five years, which helps with budgeting but limits what you can do with the loan.
Most investors stick with variable because investment loans are about tax efficiency and long term growth, not paying the debt down quickly. An offset account linked to your investment loan lets you park your income and reduce the interest charged while keeping the loan balance high and your deductions maximised. Some tradies split their investment loan with part fixed and part variable, but that adds complexity without much benefit unless rates are moving sharply.
The Tax Deductions That Actually Matter
You can claim the loan interest, property management fees, council rates, water rates, insurance, repairs, and depreciation on the building and fixtures. These deductions reduce your taxable income, which means you pay less tax overall even though the property might be costing you money each month.
Stamp duty isn't deductible in one hit - it gets added to your cost base and only matters when you sell. Claimable expenses are the ongoing costs you pay each year. A rental property costing you $8,000 out of pocket annually after rent comes in might save you $3,000 in tax if you're on a middle income. You're still $5,000 down, but you're holding an asset that should grow in value while the tax office chips in nearly 40% of your costs.
The depreciation schedule is worth paying a quantity surveyor to prepare. This document outlines the decline in value of the building structure and the fixtures inside it, giving you deductions for things that haven't cost you anything that year. On a newer property this can add $5,000 to $8,000 in annual deductions.
When Refinancing Your Investment Loan Makes Sense
Your investment loan refinancing options open up once you've built some equity or your circumstances improve. If you bought with a 10% deposit and paid LMI, you might be able to refinance once the property value increases or you pay the loan down enough to hit 20% equity. Ditching the LMI and getting a lower rate can cut your monthly cost significantly.
Some tradies refinance to pull equity out for a second investment property. If your $450,000 property is now worth $520,000 and you owe $380,000, you've got $140,000 in equity. A lender will let you borrow up to 80% of the value - that's $416,000 - which means you can access about $36,000 to use as a deposit on your next purchase. This is how you start expanding your property portfolio without saving for another deposit.
Call one of our team or book an appointment at a time that works for you. We work with tradies who understand their numbers and want straight answers about investment loan options across multiple lenders, not a sales pitch about whatever product pays us the most.
Frequently Asked Questions
Can I use equity from my home as a deposit for an investment property?
Yes, lenders will let you borrow against your home equity to fund the deposit on an investment property. You'll end up with two separate loans, and the debt you use for the investment becomes tax deductible because it's generating assessable income.
Why do most investors choose interest only repayments?
Interest only repayments keep your monthly costs lower and maximise your tax deductions because you're claiming more interest against your rental income. The loan balance stays the same, but your cash flow is stronger while you build equity through property price growth.
What deposit do I need for an investment loan?
You need at least 10% deposit for most investment loans, but reaching 20% lets you avoid Lenders Mortgage Insurance and access lower investor interest rates. The difference on a $400,000 property is between a $40,000 and $80,000 deposit.
How does rental income affect how much I can borrow?
Lenders will include rental income in your borrowing capacity, but they discount it by around 20% to account for vacancies and maintenance costs. If a property rents for $400 per week, the lender will only count about $320 when calculating what you can afford.
What happens if my tax returns show low income because I claimed lots of deductions?
Lenders use your taxable income from your tax returns, not your turnover. If you've minimised tax and shown $60,000 taxable income, the bank will only count that amount even if you actually earned much more.