Investment Property Cash Flow Calculator | Local Property Partners
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Free tool · Cash flow calculator

Is your property cash flow positive?

Plug in your numbers and see exactly where your investment property sits. Are you making money each month, breaking even, or topping up out of pocket?

Step 1 · Income
What is your property earning?

What your tenant pays per week, or what you expect to achieve.

Roughly what your property would sell for today. If you're not sure, use what you paid plus rough Perth growth, or the median Perth value of around $700,000 as a starting point.

Step 2 · Holding costs
What does it cost to hold?

Enter your regular holding costs. Leave anything that does not apply as $0.

The fixed component you pay as the landlord. Tenants pay water consumption separately in WA.

Landlord or building insurance.

Check your assessment from the Office of State Revenue. Thresholds and rates change.

Add any other annual costs specific to your property. Pool servicing, gardener, security monitoring, septic pump-out, anything else.

Step 3 · Maintenance
How much should you set aside for upkeep?

Pick a percentage of your property's value. Industry rule of thumb is 1% per year, but most Perth landlords with newer or well-maintained properties spend less.

$0/year Enter your property value above to see your maintenance budget.
What does maintenance actually cover? Repairs, gardening and reticulation, smoke alarm and RCD compliance, pest control, and between-tenant touch-ups. The 1% of value rule is a general industry estimate. Older homes, pools, and ducted air con tend to push it higher; newer apartments and well-built homes can run lower.
Step 4 · Management costs
What does your property manager charge?

Most agencies charge an ongoing percentage plus separate one-off fees when a tenant changes. We average the one-off costs across a typical tenancy length so you can see the true annual cost of management.

The ongoing percentage of rent collected. Typical Perth range: 8% to 11% incl. GST. A higher fee may reflect a broader scope of service. Compare against LPP.

Charged when a lease is renewed. Some agencies include this.

Many agencies include inspections in the management fee.

Add up what your agency charges each time a tenant changes: letting fee + advertising + photography + property condition report + any cleaning or changeover costs. Enter the total here.

How we handle the one-off costs Tenants do not change every year. Industry estimates from state bond data suggest the average Australian residential tenancy lasts around 18 months. We use this figure to spread your per-changeover costs across your annual cash flow. So if your total changeover cost is $1,800, we divide by 1.5 years to get $1,200/yr as the annualised cost. If your tenants stay longer, your real cost is lower.
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Your monthly cash position
Gross rental yield

The full breakdown

Income: /yr Costs: /yr
Gross annual rent
Less vacancy allowance (2 weeks assumed)
Net rental income
Mortgage
Council rates
Water service charge
Insurance
Strata / body corp
Land tax
Maintenance ()
Management fee (%)
Lease renewal
Inspections
Changeover costs (averaged over 18 months)
Total annual costs
Annual cash flow
Monthly cash flow
Weekly cash flow

Want to walk through this with me?

Book a free 30-minute chat with Daria. No pressure, no pitch, just an honest conversation about what the numbers mean for your situation.

Daria Tedling · REIWA 2025 Residential Property Manager of the Year · 2026 REIA National Finalist
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