Beginner's Guide to Rental Yield for Periodontists

Rental yield tells you what percentage of a property's value comes back to you as rent each year.

For periodontists considering property investment, yield is one of three numbers that shape whether a rental property supports or strains your cash flow. The other two are your loan interest rate and your marginal tax rate. Together, they determine whether you're covering costs from rental income or subsidising the property from clinical earnings each month. The calculation itself is direct: annual rent divided by purchase price, expressed as a percentage. A property leased at $650 per week with a purchase price of $780,000 delivers a gross yield of around 4.3 per cent. What that figure means for your portfolio depends entirely on the loan structure you choose and the way your income is taxed.

Gross Yield Versus Net Yield After Holding Costs

Gross yield divides annual rent by purchase price. Net yield subtracts all holding costs before dividing by the total amount you invested, including stamp duty and acquisition costs.

Consider a two-bedroom unit purchased for $780,000 with $650 weekly rent. Gross yield is 4.3 per cent. Once you deduct strata levies of $1,200 per quarter, council rates of $1,800 annually, insurance at $950, property management at 7 per cent of rent, and an allowance for vacancy and maintenance, net yield drops closer to 2.8 per cent. The gap between gross and net matters because lenders assess serviceability on net rental income after management fees and an assumed vacancy rate, typically between 3 and 5 per cent depending on the postcode. If you're comparing properties across different body corporate structures or regional councils with varying rate bases, net yield gives you the figure that reflects actual cash flow.

How Yield Interacts With Interest Only Repayments

Interest only repayments reduce your monthly outgoing and lift the chance that rental income covers the loan cost, particularly if you're holding the property for capital growth rather than paying down debt.

A $624,000 loan at a variable investor interest rate will require roughly $3,100 per month in interest only payments. If net rent after all costs is $2,300 per month, you're funding a $800 shortfall from other income. That shortfall is your net rental loss, and under the rules that apply to properties held before the negative gearing changes take effect in July 2027, you can offset it against your clinical income. For properties acquired after the cut-off, losses are quarantined and can only be used against future rental income or capital gains. The yield required to break even depends on your loan to value ratio and the interest rate your lender offers. A periodontist with equity in an owner-occupied home may access a rate discount that narrows the gap between rent and interest, turning a negatively geared position into a neutrally geared one without requiring a higher-yielding property.

Interest Rate Discounts and How They Change the Equation

Lenders price investment loans differently depending on your deposit size, loan amount, and occupation. Periodontists with a deposit above 20 per cent and a stable income history often qualify for deeper rate discounts than the standard advertised investor variable rate.

A 0.3 per cent discount on a $624,000 loan saves roughly $1,870 annually in interest, which translates to $156 per month. That saving can be the difference between a property that costs you $800 per month and one that costs $644. When you're comparing investment loan options, the rate discount available to you is as important as the yield itself. Some lenders also offer offset accounts on investment loans for dentists, which let you park surplus cash against the loan balance and reduce interest without formally paying down principal. If your practice generates uneven cash flow or you're holding funds for a future equipment purchase, an offset can improve your effective yield by lowering the interest you pay each month.

Fixed Rate or Variable Rate for Rental Properties

Variable rate investment loans let you make extra repayments and access offset accounts. Fixed rate investment loans lock your repayment for a set term but often come with limited or no offset, no extra repayments, and break costs if you refinance or sell early.

The decision depends on whether you value certainty or flexibility. A periodontist who plans to hold a property long term and wants predictable repayments for the next three to five years may choose to fix part or all of the loan. A specialist building a portfolio and expecting to release equity within two years to fund a second purchase will usually stay variable to avoid break costs. In our experience, clients who fix the entire loan amount on an investment property regret the decision if they need to sell or refinance before the fixed term ends, particularly if interest rates have fallen and they're locked into a higher rate with no exit. A split structure, fixing 50 to 60 per cent and leaving the rest variable, gives you some rate protection without eliminating flexibility.

Vacancy Rate and How It Affects Serviceability

Lenders apply a vacancy rate when calculating how much rent they'll credit toward your borrowing capacity. The rate varies by postcode and property type but typically sits between 3 and 5 per cent for metro apartments and houses.

If a property rents for $650 per week, the lender may only credit $617 per week after applying a 5 per cent vacancy rate. Over a year, that's a reduction of $1,716 in the rental income used to service the loan. In suburbs with higher tenant turnover or longer listing periods, lenders apply a higher vacancy assumption, which reduces the loan amount you can borrow against that property. A two-bedroom unit in an area with strong rental demand and low turnover will support a larger loan than an identical unit in a precinct where tenants typically stay for six months before moving on. When you're assessing rental yield, factor in the vacancy rate your lender will use, not just the advertised rent, because that adjusted figure determines whether the property helps or hinders your borrowing capacity for future purchases.

Loan to Value Ratio and Lenders Mortgage Insurance

Loan to value ratio is the amount you borrow divided by the property value. If you borrow more than 80 per cent, you'll pay Lenders Mortgage Insurance, which protects the lender if you default but adds a one-off cost to your purchase.

For a $780,000 property with a 10 per cent deposit, LMI on a 90 per cent LVR investment loan can range from $18,000 to $28,000 depending on the lender and your income profile. Some lenders offer LMI waivers for dentists up to 90 per cent LVR on both owner-occupied and investment lending, which removes that cost entirely and improves your net return from day one. A periodontist with an existing home loan and $156,000 in accessible equity could use that equity as a deposit, avoiding LMI and keeping the LVR on the investment property at 80 per cent. The lower LVR also unlocks better interest rate pricing, which compounds the benefit. When you're calculating investment loan repayments and comparing properties, include LMI in your total acquisition cost, because it affects your true net yield and the amount of capital you need to get the loan settled.

How the July 2027 Negative Gearing Changes Affect Yield Strategy

From 1 July 2027, net rental losses on residential properties acquired after 12 May 2026 can only be offset against residential rental income or carried forward. They cannot be offset against salary or other income unless the property is an eligible new build.

A periodontist earning $280,000 annually who buys an established unit in July 2026 and incurs a $9,600 annual loss can currently deduct that loss against clinical income, saving roughly $4,400 in tax at a 46.5 per cent marginal rate including Medicare Levy. Under the new rules, that same loss is quarantined and can only be used when the property generates a profit or when you sell and realise a capital gain. The tax benefit is deferred, not lost, but the timing changes your cash flow. For properties purchased before the cut-off, the old rules continue to apply. For periodontists buying now, this makes higher-yielding properties more attractive because they reduce or eliminate the quarantined loss. It also makes eligible new builds worth considering, because they retain full negative gearing regardless of when they're purchased, provided the build increases the dwelling count and the property has not been previously occupied for more than 12 months.

When to Prioritise Yield Over Capital Growth

Yield matters most when you need the property to support itself or when you're approaching a debt-to-income limit and cannot afford a negatively geared position.

Capital growth matters most when you have surplus income to cover shortfalls and you're focused on building equity for future portfolio expansion. A periodontist three years into practice with limited surplus cash flow after owner-occupied repayments and practice overheads will benefit more from a higher-yield property that requires minimal monthly top-up. A specialist ten years in, with strong surplus income and a goal to acquire three properties within five years, can absorb a lower yield if the suburb offers stronger growth prospects and the ability to leverage equity sooner. The strategy depends on where you are in your career and what you're using property to achieve. If you're building passive income for semi-retirement in 15 years, yield is central. If you're accumulating equity to fund a practice purchase or a move to private consulting rooms, growth takes priority and yield is secondary.

Rental yield is one input in a decision that also includes your borrowing capacity, your tax position, your timeline, and the way your lender prices the loan. We work with periodontists at every stage of portfolio growth, matching investment loan products to the specific yield and structure you need. Call one of our team or book an appointment at a time that works for you.

Frequently Asked Questions