How to Get Investment Loan Pre-Approval

What Investment Loan Pre-Approval Actually Tells You

Pre-approval for an investment loan gives you a conditional borrowing limit based on your income, existing debts, and the type of property you intend to buy. A lender reviews your financial position and commits in writing to lend you up to a specified amount, usually for three to six months, provided the property you choose meets their security criteria and your circumstances remain unchanged.

For Service NSW employees, pre-approval matters because it separates what you can afford from what you think you can afford. You know your borrowing capacity before you make an offer, before you engage a conveyancer, and before you commit to a purchase that might not settle. In our experience, buyers who skip this step often discover their serviceability falls short once rental income and investment loan interest rates are factored in, or they find that the property they want to buy is outside the lender's acceptable postcode or construction type.

Consider a Service NSW employee earning a base salary who wants to buy a unit in a suburb close to work. Without pre-approval, they might assume the rent will cover most of the mortgage and that their salary will support the shortfall. Once a lender applies the serviceability buffer and factors in only 80 per cent of the projected rental income, the borrowing limit might be lower than expected. Pre-approval removes that uncertainty.

How Lenders Assess Your Income for Investment Borrowing

Lenders start with your gross income and deduct tax, existing loan commitments, living expenses, and a serviceability buffer before calculating what you can borrow. For investment loans, they also assess rental income from the property you plan to buy, but they discount it. Most lenders will include 80 per cent of the expected rent, on the assumption that the property might sit vacant for part of the year or incur letting costs.

Your income as a Service NSW employee is usually straightforward to verify. Lenders accept your payslips and a letter of employment, and they treat permanent salary as stable income. If you receive allowances or overtime, some lenders will include them if they have been consistent over the past 12 to 24 months. If you have other investment properties, lenders will also factor in 80 per cent of the rental income from those, and deduct the loan repayments and any interest-only periods that are about to expire.

The serviceability buffer is currently set at 3.0 percentage points above the loan product rate for loans assessed by banks and other deposit-taking institutions regulated by APRA. That means if the variable rate on your investment loan is 6.5 per cent, the lender will assess whether you can service the loan at 9.5 per cent. The buffer has been in place since October 2021 and applies to all new borrowing, including investment loans for public servants.

Fixed Rate or Variable Rate at Pre-Approval Stage

You do not need to lock in a rate type when you apply for pre-approval, but you should tell the lender what structure you are considering. Most lenders will assess your serviceability on the variable rate, even if you later choose a fixed rate product, because the variable rate is typically higher and represents a more conservative test.

If you plan to split your loan between fixed and variable, or if you want an interest-only period, mention it during the pre-approval application. Interest-only loans are assessed differently. The lender will usually require you to demonstrate that you can service the loan on a principal and interest basis at the end of the interest-only term, even if you plan to sell or refinance before that point. That can reduce your borrowing capacity compared with a principal and interest loan from the start.

Some lenders classify long-term interest-only loans at higher risk if the interest-only period exceeds five years and the loan-to-value ratio is above 80 per cent. This affects the capital they must hold against the loan and can result in a higher interest rate or a declined application.

The Deposit and Equity You Need to Show

Most lenders will require a deposit of at least 20 per cent of the property value to avoid Lenders Mortgage Insurance on an investment loan. If you have less than 20 per cent, LMI will apply, and the premium is calculated on a sliding scale based on how much you are borrowing and the loan-to-value ratio. The premium is a one-off cost, and you can usually capitalise it into the loan, but that increases your borrowing and your repayments.

If you are using equity from your current home to fund the deposit, the lender will order a valuation of that property and calculate how much equity you can access. The usable equity is typically 80 per cent of the property value, less your existing mortgage. If your home is worth more than you owe, you might be able to buy an investment property without needing to save a cash deposit, although you will still need to cover stamp duty and other upfront costs from savings or capitalise them if your equity permits.

Service NSW employees can sometimes access low deposit loans for public servants or LMI waivers depending on the lender and loan structure. Some lenders offer reduced LMI for borrowers in the public sector, particularly when the loan is for an owner-occupied property, but those concessions are less common for investment loans. If you are refinancing an existing investment loan and your equity has increased, you may be able to avoid LMI even if you originally paid it, because your loan-to-value ratio has improved.

What Lenders Want to See in Your Application

Lenders will ask for recent payslips, usually your two most recent, a letter from Service NSW confirming your employment status and length of service, and your most recent tax return if you have other income or deductions. They will also want to see bank statements covering the past three months to verify your deposit, assess your spending, and check for any undisclosed liabilities such as buy now pay later arrangements or frequent overdraft use.

If you have existing investment properties, provide the current lease agreements and evidence of rental income hitting your account. If a property is vacant, the lender will usually assess it at zero income and full expenses until you can show a signed lease. If you are planning to use the equity in another property, have a recent rates notice or mortgage statement ready so the valuer and credit assessor can confirm the address and title details.

Lenders also review your credit file. They look for defaults, late payments, and the number of credit enquiries in the past 12 months. Multiple enquiries can suggest financial stress or declined applications elsewhere. If you have a default, even a small one, some lenders will decline the application outright. Others will consider it if it has been paid and you can explain the circumstances. Check your credit file before you apply, and if there is anything adverse, discuss it with your broker before the lender sees it. We regularly see applicants who are unaware of a default from a forgotten utility bill or a disputed phone contract, and it can delay or derail an otherwise solid application.

How Debt-to-Income Limits Affect Your Borrowing

From February this year, lenders regulated by APRA can lend no more than 20 per cent of their new investment loans to borrowers with a total debt-to-income ratio of six times or more. The limit applies across all your borrowing, including your home loan and any other investment loans, and is measured against your gross income.

If you earn a gross salary and your total borrowing, including the new investment loan, would push your debt-to-income ratio above six, you might still be approved, but the lender has less room to accommodate your application. If your ratio is close to or above that threshold, consider investment loan refinancing to consolidate debt or reduce your total borrowing before applying for the next property.

The debt-to-income limit is separate from the serviceability buffer. You can pass the serviceability test and still be caught by the debt-to-income limit if your total borrowing is high relative to your income. This tends to affect borrowers with multiple properties or those who stretched their serviceability on their first purchase.

What Happens After Pre-Approval is Granted

Once the lender issues your pre-approval, you can search for a property within the approved loan amount. When you find a property and sign a contract, you return to the lender with the signed contract, and they order a valuation. If the property values at or above the purchase price and meets the lender's security policy, the loan moves to formal approval.

Some properties will not be accepted even if the valuation is adequate. Lenders have postcode restrictions, unit size minimums, and construction type exclusions. Apartments with combustible cladding, certain types of lightweight construction, or buildings with active defect claims can be declined. If you are buying in a high-rise building, check that the body corporate has adequate insurance and no special levies pending. If you are buying a studio or a unit smaller than 50 square metres, check with your broker first, because not all lenders will accept it as security.

Pre-approval also assumes your circumstances remain unchanged. If you change jobs, take on new debt, or reduce your hours between pre-approval and settlement, the lender will reassess your application. If you move from Service NSW to another employer, even within the public sector, tell your broker immediately. Most lenders will accept the change if your income and employment status are similar, but they need to verify it before settlement.

Why Rental Income is Discounted in Serviceability

Lenders assume a vacancy rate when calculating how much rent will contribute to your serviceability. The standard treatment is to include 80 per cent of the market rent, which accounts for periods when the property is vacant, letting fees, and ongoing management costs. Some lenders will use 75 per cent, particularly if the property is in a regional area or a location with higher vacancy risk.

This discount affects how much you can borrow. If the property you want to buy would rent for $600 per week, the lender will assess your income as though you are receiving $480 per week. Over a year, that is a difference of more than $6,000 in assessed income. The shortfall between the loan repayment and the assessed rental income has to be covered by your salary, and that reduces your borrowing capacity for the investment loan and for any future borrowing.

If you already own an investment property and are applying for pre-approval on a second, the lender will discount the rent on both properties. That compounds the effect. You might find that your borrowing capacity is lower than you expected, even though both properties are tenanted and generating positive cash flow after tax.

Holding Pre-Approval While the Market Moves

Pre-approval is usually valid for three to six months, depending on the lender. If you have not found a property within that window, you can often extend it by providing updated payslips and bank statements, but the lender will reassess your borrowing capacity at the current interest rate. If rates have increased, your approved amount might fall. If your circumstances have changed, the lender might withdraw or reduce the pre-approval.

If you are holding pre-approval and your fixed rate on another loan is about to expire, let your broker know before you refix or switch lenders. Refinancing an existing loan can change your repayments and affect your serviceability for the new investment loan. In some cases, it makes sense to finalise the new investment loan before refinancing the old one. In other cases, refinancing first will improve your serviceability. The order matters, and the right sequence depends on your rate, loan structure, and repayment type.

We have worked through scenarios where a Service NSW employee held pre-approval for an investment loan while their fixed rate was expiring on their home loan. By switching the home loan to a lower variable rate and extending it to interest-only temporarily, they improved their cash flow and increased the amount they could borrow for the investment property. That sort of timing requires coordination between the two applications, but it can make the difference between buying the property you want and settling for something smaller or further out.

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Frequently Asked Questions