Approved insurers who participate in the NSW CTP Scheme must seek approval from the State Insurance Regulatory Authority (SIRA) every time they decide to change their CTP prices. This process is called “File and Write”.
File and Write = File your rates and then Write your premiums.
Insurers must file rates at least once a year. This is now done more frequently and is currently on average every four months. This means that insurers CTP prices will change every four months currently, on average.
One should therefore compare CTP Greenslip prices at each renewal to ensure their CTP renewal policy is still the most competitive in the market.
Aside from the At Fault Driver Protect add on covers offered by insurers (read more about At Fault Driver Protect here) all CTP policies offer the same protection. So price rather than cover is a significant factor in the decision made by consumers as to which policy to purchase.