Rental Cash Flow

What rental cash flow measures

Rental cash flow tracks the money received and paid for a rental property over a stated period. A positive balance is cash left over within that scope. A negative balance is a shortfall. Always label whether the result is before or after loan payments and tax.

Use the Investment Property Yield Calculator to compare rent and operating expenses. Its interest-based cash result is not a full principal-and-interest household budget. Add any principal payments and other excluded cash costs separately, using the Mortgage Repayment Calculator for an indicative repayment scenario.

Worked example: rent does not cover every payment

These invented annual figures illustrate a cash budget, not typical costs or an investment recommendation. Rent received already allows for two vacant weeks, so vacancy is not deducted again.

Annual cash item	Amount
Rent received: $600 for 50 weeks	$30,000
Operating payments, including rates, insurance and management	$8,000
Loan interest paid	$18,000
Loan principal repaid	$6,000
Total cash payments	$32,000
Cash result before tax	Negative $2,000

Rent less operating payments and interest leaves $4,000. Including the $6,000 principal payment turns that into a $2,000 cash shortfall. Principal reduces the loan balance, but the payment still leaves the bank account.

The shortfall averages about $166.67 a month. That does not mean each month needs that amount: rent may arrive weekly, the loan may be paid monthly and insurance may be due annually. A $2,400 annual bill requires $2,400 when it falls due even though its monthly average is $200.

Three checks before using the result

• Count each amount once. If a management statement shows rent after agent fees, either use that net amount or reconstruct gross rent and subtract the fees. Do not do both.
• Use a consistent period. Weekly rent multiplied by 52 is an annual planning convention. For an actual past period, reconcile receipts and payments to statements.
• Separate allowances from payments. Money reserved for future repairs reduces cash available to spend but is not necessarily a repair payment made this year. Label the reserve so it is not deducted again when spent.

Cash flow, yield and tax are different measures

Rental yield expresses rent relative to property value. It does not reveal when bills fall due. Negative gearing concerns a borrowed investment and its costs; tax deductions require a separate assessment. Do not add an assumed refund to cash received before it exists.

Buying costs, renovations, special levies and sale proceeds need separate lines if they fall within the period being budgeted. The example excludes them and tax. It is not a total investment return calculation or a prediction of capital growth.

For a longer checklist, read how to calculate property cash flow. Check costs against actual notices, contracts and quotes rather than treating this example as a benchmark.

Sources and limitations

ASIC Moneysmart: Buying an investment property, updated 30 June 2026 and checked 15 September 2026, explains holding costs and illustrates a rental budget shortfall. The figures and reconciliation examples above are our own arithmetic.

General information only, not financial, tax, legal, credit or investment advice. Estimates may vary. A cash surplus does not establish investment suitability, loan approval or a future return. Speak with a licensed professional about personal circumstances.

Last updated: 15 September 2026.