Yield Calculator

Use the calculator below to compare an assumed property value and weekly rent, then allow for operating expenses. It is a starting point for a Warkworth, coastal or Kaipara rental assessment; the inputs should come from the particular property.

What the results mean

Gross yield is weekly rent multiplied by 52, divided by the property value, then multiplied by 100. For example, $700 a week and a $1,000,000 value gives $36,400 potential annual rent and a 3.64% gross yield. This is an illustration, not a local rental forecast.

The calculator treats vacancy as lost rent and calculates the management percentage on rent after that vacancy allowance. Add annual rates, insurance, maintenance and body corporate or other costs. Enter percentages between 0 and 100 and use a positive property value and weekly rent.

Worked example with expenses

Using the example above, an 8% management fee, 2% vacancy allowance and $7,000 in other annual expenses produces approximately $25,818 annual income before lending costs and tax, or a 2.58% net yield. The management rate is illustrative; use your actual quoted fee and include GST where relevant.

Gross annual and monthly rent show potential rent before vacancy. The widget’s “monthly cash flow” is estimated net operating income divided by 12. It does not deduct mortgage payments or tax and is not the cash left in your bank account.

Build a property-specific budget

• Ask for comparable evidence behind the proposed rent.
• Allow for periods without rent and changes in operating costs.
• Include larger replacements and compliance work in your wider plan.
• For tank water, wastewater or coastal maintenance, obtain actual cost information.
• Ask your lender and accountant about finance, tax and the affordability of adverse scenarios.

Request a rental appraisal or use the enquiry form below to contact Nicole Banks. Read the investment guide for the wider purchase checklist.

By Nicole Banks. Updated 15 September 2026.