Insurers consider a range of factors when calculating home insurance premiums in Tas, including your sum insured, the level of cover and excess you choose, construction costs, and their assessment of your property risk. Here are some of the main factors that can affect your premium.
Flood risk
Parts of the Derwent Valley, Huon Valley, Launceston and areas along the South Esk and Tamar river systems are among those identified in Tas’s flood maps as having higher riverine flood risk. If your property falls within a mapped flood zone, insurers may charge higher premiums.
Bushfire risk
If your property is located within a mapped Bushfire Prone Area, it will be assigned a Bushfire Attack Level (BAL) rating based on its exposure to bushfire hazards. BAL ratings determine the minimum construction standards required and can affect rebuilding costs, which in turn affects your sum insured. Even a lower BAL rating (BAL-19) could add around $5,000 to $20,000 to the cost of building a home, depending on your specific home and circumstances, while higher BAL ratings (BAL-20 to BAL 40) could potentially increase construction costs by around $50,000 or more due to the need for specialised glazing and fire-resistant building features. In some cases, a high risk score may mean that a standard policy is harder to get. Factors such as the distance from the nearest fire station and the quality of local fire and emergency services, may also contribute to the final cost of the policy.
Crime risk
Tas Police data shows the Launceston police division recorded 5,764 property offences in 2025–26, followed by Hobart, at 4,086. Properties in suburbs with higher burglary rates may attract higher home insurance premiums. Installing security measures such as monitored alarms, security cameras and deadlocks may help lower your property’s risk profile and premiums.
Your property type and age
Insurers also assess the characteristics of your home when calculating premiums. These may include:
- age of the property
- roof age, type and condition
- construction materials
- additional features like swimming pools and sheds
- occupancy type, such as owner-occupied or investment
- compliance with modern building standards.
Type of cover and excess you choose
The higher your sum insured, the higher your premium is likely to be. Generally, combined home and contents insurance costs more than home building insurance or contents insurance alone, while higher sums insured and optional extras, such as accidental damage cover, can further increase the cost of your policy. Choosing a higher excess, on the other hand, can usually lower your premium.
Claims history
Insurers may also look at your previous claims history as an indicator of future risk. The number, type and value of past claims can affect how much you pay. Multiple claims over a short period could result in higher premiums at renewal.