Overview
The City of Karratha collect rates from property owners each financial year to meet the budget requirements of the Council. The rates enable the City to fund essential services like waste collection, roads, parks, libraries and community facilities that benefit the whole community.
The differential rates adopted by Council were approved by the Minister then applied in the Annual Rates Billing process for 2025/2026 which were issued 2nd September 2025.
Differential rating is a tool that helps local councils ensure fairness in how rates are charged. By adjusting rates based on property type, land use, or location, councils can better reflect the services provided to different areas. This means businesses, farms, and residential properties contribute in ways that match their impact and benefit to the community. It also helps encourage growth in key sectors like tourism and agriculture, while ensuring essential services and infrastructure are maintained across our diverse region. Ultimately, differential rating helps build a stronger, more balanced community for everyone.
Understanding property revaluations
This year is a revaluation year for GRV properties, WA Government's Landgate has revalued these properties. This year’s update means Gross Rental Values (GRVs) will change across the district leading to different rate impacts depending on location and property type.
Even if Council doesn't change the rate in the dollar, your rates can still change.
Why?
- Property values are reassessed every 3 years by the WA Valuer-General
- If your property value increases, the same rate in the dollar will result in higher rates
- If your value drops, you may pay less
What the City proposed to support the community
To reduce pressure on households the City proposed no increase in total residential rate yield (0%) for Residential and a modest 2.1% overall increase in total rates revenue in 2025/26. This is below both the City’s Long Term Financial Plan projection of 2.4% and Perth CPI of 2.9%. Instead, any changes in rates would come from updated Gross Rental Values (GRVs).
The Council's proposed rate in the dollar can be seen in the first graph which shows the distribution of percentage rates increase if the City steps in to soften the impact on residential properties. Following this approach will mean most residential properties fall within the 0–5% band increase.
As seen in the below chart, if the City steps in to soften the impact on residential properties with no increase in total residential rate yield (0%), most residential properties will fall within the 0–5% band increase.
Chart 1: Sensitivity Analysis GRV Residential at Baseline rates yield
Whereas, if the City does not intervene and applies the full 2.5% increase as outlined in the Long-Term Financial Plan, the majority of properties shift into the 0–15% increase band.
This approach would result in significantly higher rate increases for many properties, placing greater financial pressure on residents.
Chart 2: Sensitivity Analysis GRV Residential at 2.5% increase
The City’s strategy to absorb the rising costs, across its property investments, grant funding, and other income streams, means it can maintain its services (including a 9% increase in insurance premiums) without passing the burden on to ratepayers.
Objectives
The City of Karratha has reviewed all its income sources, service needs, and cost-saving opportunities to determine how much it needs to raise through property rates in 2025/26.
The proposed differential rates model would raise $66.3 million in rates in the 2025/26 financial year.
To meet this funding target fairly, the Rate in the Dollar for each rating category has been adjusted to reflect updated property values.  
For the 2025/26 year, the City is proposing a rate in the dollar value of 0.055795 for residential properties down from last years 0.076119 to accommodate for the revaluations. The proposed differential rates for the 2025/26 financial year are detailed in Table 1 below:
Table 1: Proposed Differential Rates for 2025/26
How feedback was provided
The City invited residents and ratepayers to review the proposed model and provide their feedback. The Differential Rates Model is available for public viewing and  can be accessed on the right-hand side of this page named 'Objects and Reasons Rating Strategy for Differential Rates'.
Submissions have closed, and all feedback will be considered by the Council prior to seeking Ministerial approval to impose a differential general rate.