Rent is up. Your investment can still lose cash

The Reserve Bank of Australia left the cash rate target unchanged at 4.35% on 11 August 2026. Cotality's June-quarter rental review reported that national rents rose 5.9% over the year, the median national dwelling rent reached $705 per week and the national gross dwelling yield was about 3.7%.

Those figures describe the wider market. They do not prove that a particular investment property is cash-flow positive. The monthly result still depends on the rent actually received, vacancy, operating costs, the loan balance, the interest rate and the repayment structure.

Why gross rental yield can mislead

Gross rental yield measures annual rent before costs, usually as a percentage of the property's value. It does not subtract vacancy, property management, council and water rates, insurance, body corporate, land tax, repairs, maintenance or finance costs where applicable.

Moneysmart warns that rental income may not cover mortgage payments and other property expenses. A rising rent can therefore improve the top line while the investor still needs to fund a monthly shortfall.

Worked example: about $583 a month to fund

Annual rent of $33,800 minus $9,800 of vacancy and operating costs minus $31,000 of loan interest leaves negative cash flow of $7,000 a year. That is about $583 a month the investor must fund before tax and principal repayments.

This is a simplified mathematical illustration, not a forecast, property appraisal, loan quote or tax calculation. The real result changes with the property, vacancy experience, loan structure, interest rate, maintenance needs and the timing and tax treatment of expenses.

Investor cash-flow check

Gross Rent — the rent received before any property or finance costs are deducted.

Operating Costs — vacancy, management, rates, insurance, body corporate, land tax, repairs and maintenance where applicable.

Loan Costs — interest and required repayments based on the actual investment loan, not the market's gross yield.

Cash-flow Shortfall — the amount the investor must fund after rent and relevant costs are compared.

Test the monthly shortfall before you buy

1. Use realistic rent — check comparable evidence and allow for the possibility that the property will not be occupied every week of the year.

2. Itemise holding costs — use the property's actual rates, strata or body-corporate information, insurance and a maintenance allowance rather than a generic percentage alone.

3. Use the real loan structure — calculate with the expected balance, interest rate, repayment type, fees and any buffer for rate or expense changes.

4. Keep tax separate — record income and expenses, but obtain advice for the treatment that applies to your property and personal circumstances.

Bottom line

Higher rent can help, but it does not turn gross yield into spendable cash. Compare realistic rent with vacancy, holding costs and the actual loan cost, then decide whether the monthly shortfall remains affordable under less favourable conditions.

Sources

Reserve Bank of Australia — Monetary Policy Decision, 11 August 2026

Cotality — Rental Review Q2 2026

Moneysmart — Buying an investment property

Australian Taxation Office — Rental properties guide

General information only. This is not financial advice. Loan options and eligibility depend on your personal income, liabilities, assets and lender assessment criteria.