Lenders assess investment risk differently than they assess owner-occupied loans, and most borrowers in Frankston don't realise how much that difference affects their borrowing capacity and loan terms.
How Lenders Assess Your Rental Income
Lenders apply a haircut to your projected rental income, usually between 20% and 30%, to account for vacancy periods and maintenance costs. If a property in central Frankston near the station rents for $500 per week, the lender may only count $350 to $400 of that income when calculating your servicing. This adjustment protects the lender if you lose a tenant or need to cover urgent repairs, but it also reduces how much you can borrow. Borrowers who budget based on full rental income often discover their approved loan amount falls short of what they expected.
Consider a buyer who wants to purchase a two-bedroom unit near Frankston Beach. The advertised rental yield is strong, but after the lender applies their serviceability shading and adds the buyer's existing mortgage repayments and living expenses, the approved amount drops by $80,000. The buyer either needs a larger deposit or must look at properties in a lower price bracket.
Most lenders also increase the interest rate buffer they use for investment loans. While an owner-occupied application might be stress-tested at 3% above the actual rate, an investment loan could be buffered at 3.5% or higher. This compounds the servicing squeeze, particularly if you already hold other debt or your income is variable.
The Loan to Value Ratio Ceiling for Investment Borrowing
Most lenders cap investment loans at 90% LVR, and many tighten that further to 80% depending on location, property type, or your employment structure. Borrowing above 80% usually triggers Lenders Mortgage Insurance, which adds several thousand dollars to your upfront costs and may restrict your access to discounted interest rates. In Frankston, where body corporate fees on older units can exceed $1,000 per quarter, these additional costs can push your deposit requirement higher than anticipated.
If you're refinancing to release equity for a second purchase, the same LVR limits apply. A property valued at $650,000 with $400,000 owing gives you $120,000 in usable equity at 80% LVR, but only if the lender's valuation matches your expectation and the property type is acceptable security.
Interest Only Repayments and Serviceability Trade-Offs
Interest only repayments reduce your monthly outgoings, which can improve cash flow and help you meet the lender's servicing test. However, lenders assess interest only loans more conservatively. Some apply a higher interest rate buffer or require a lower LVR to approve the application. After the interest only period ends, usually between one and five years, your loan reverts to principal and interest unless you reapply and qualify again under the current criteria.
In our experience, borrowers who rely on interest only to pass servicing often face a difficult choice when the loan reverts. If property values haven't increased or rental income hasn't grown, refinancing to extend the interest only term may not be possible. The shift to principal and interest repayments can increase your monthly cost by several hundred dollars, which affects your ability to service additional borrowing for portfolio growth.
Vacancy Rates and Holding Costs in Frankston
Frankston's rental vacancy rate fluctuates with seasonal demand and local employment trends. Properties near Chisholm Institute or Frankston Hospital tend to hold tenants more consistently than units further from transport and amenities. If your property sits vacant for six weeks, you'll need to cover the full loan repayment, body corporate fees, council rates, and insurance from your own income. Lenders know this, which is why they discount your rental income during the application process.
Holding costs also include non-claimable expenses. While your loan interest, property management fees, and depreciation are tax deductible, your principal repayments are not. Borrowers who structure their loan as principal and interest from the outset often underestimate how much of their monthly repayment delivers no tax benefit.
The Risk Lenders Won't Tell You About
Lenders assess your ability to service the loan under current conditions, but they don't account for policy changes that affect your tax position. The 2026-27 Federal Budget introduced reforms to negative gearing and capital gains tax that take effect from 1 July 2027. If you purchased an established residential property in Frankston after 12 May 2026, you'll no longer be able to deduct rental losses against your wage income once the changes commence. Those losses can still offset future rental income or capital gains from residential property, but the immediate tax benefit that many investors rely on to manage cash flow will no longer apply.
If you bought before Budget night, your existing arrangements remain unchanged. If you're planning to buy a new build, you'll have the option to choose between the old 50% CGT discount or the new inflation-indexed method, whichever is more favourable. But if you're looking at an established property and your strategy depends on offsetting a rental loss against your salary, the numbers change significantly from mid-2027 onwards.
Lenders won't adjust their assessment to reflect this, because serviceability is calculated on current tax treatment. It's your responsibility to model the impact on your cash flow once the deduction is restricted. A property that costs you $200 per week after tax today could cost you $350 per week after tax under the new rules, depending on your marginal rate and the size of your loss.
Structuring Your Investment Loan Application
Presenting a well-structured application improves your chances of approval and access to rate discounts. Lenders want to see a clear servicing buffer, a manageable LVR, and evidence that you've accounted for holding costs. If you're self-employed or earn income from multiple sources, providing 12 months of bank statements and recent tax returns helps the lender assess your capacity with confidence.
Borrowers in Frankston who also hold owner-occupied debt should consider whether splitting their loans or consolidating them delivers a better outcome. Some lenders offer portfolio pricing once you hold multiple properties with them, but others apply higher rates to investment loans regardless of your overall relationship. Comparing your loan options across different lenders often reveals a material difference in both rate and serviceability treatment.
If you're purchasing a property that requires renovation or has deferred maintenance, some lenders will reduce the valuation or decline the application altogether. Older homes near Frankston's industrial precinct or properties with weatherboard cladding and minimal updates may be seen as higher risk, even if the rental yield appears strong.
Understanding how lenders assess investment risk before you apply means you can structure your deposit, choose the right property type, and select loan features that align with both your current servicing and your long-term wealth strategy. Call one of our team or book an appointment at a time that works for you.
Frequently Asked Questions
How much rental income will the lender count towards my investment loan serviceability?
Lenders typically apply a haircut of 20% to 30% to your projected rental income to account for vacancy periods and maintenance costs. If a property rents for $500 per week, the lender may only count $350 to $400 when assessing your capacity to service the loan.
Can I borrow 90% for an investment property in Frankston?
Most lenders cap investment loans at 90% LVR, though many tighten that to 80% depending on property type, location, or your employment structure. Borrowing above 80% usually requires Lenders Mortgage Insurance and may limit your access to discounted rates.
What happens to my interest only investment loan when the period ends?
After the interest only period, usually between one and five years, your loan reverts to principal and interest repayments unless you reapply and qualify again. This can increase your monthly repayment by several hundred dollars and may affect your ability to borrow further.
Do the recent Federal Budget changes affect my investment loan in Frankston?
If you purchased an established residential property after 12 May 2026, you won't be able to deduct rental losses against wage income from 1 July 2027. Losses can still offset future rental income or capital gains from residential property, but the immediate tax benefit is restricted. Properties bought before Budget night are grandfathered.
Why do lenders use a higher interest rate buffer for investment loans?
Investment loans are assessed as higher risk, so lenders apply a larger interest rate buffer, often 3.5% or more above the actual rate, compared to 3% for owner-occupied loans. This stress test ensures you can still service the loan if rates rise, but it reduces your borrowing capacity.
