During Senate Estimates in October, I raised an issue that’s hurting Australians — insurance costs.
Health Insurance: Private hospitals across Australia are under extreme stress because of funding shortfalls from insurers, yet those same insurers are posting record profits — over $5 billion. Why are hospitals being starved while insurers rake in billions?
The ACCC Chair acknowledged the challenges but said they haven’t actively investigated this. She noted that private hospitals face rising costs and tough negotiations with a small number of insurers — a clear sign of limited competition.
Home and Car Insurance: On paper, there are 11 home insurers, many just brands under the same company. Suncorp owns AAMI and Apia; CGU and NRMA are both IAG. That means only eight real players. Car insurance is even worse — 12 brands, yet only six actual companies. When I asked the ACCC if this lack of competition worried them, they expressed their concern and said that they’re reviewing IAG’s proposed acquisition of RACWA because it could remove an important competitor.
Australians are furious about insurance premiums skyrocketing in areas that have never flooded, and never will, based on speculative climate change claims. Insurers argue that future flooding risk justifies massive hikes, even though extreme weather trends are flat. I asked if the ACCC has looked at how insurers justify these increases in a low-competition market. The answer? No.
All five publicly listed insurance companies share the same major shareholders — BlackRock, Vanguard, State Street and Norges Bank. These global asset managers hold significant stakes across insurers and banks. I asked if the ACCC considers the impact of these interlocked holdings. They said they’re aware of the investors yet will only act if they see evidence of coordinated conduct.
— Senate Estimates | October 2025
Transcript
CHAIR: Senator Roberts.
Senator ROBERTS: Insurance is the second most painful item on the consumer’s shopping list after groceries. There’s a lot of pain. I’ll go to the hospital aspect and then to the competition aspect. Private hospitals across Australia are under extreme stress because of funding shortfalls from the health insurers. We’ve been told this by many. Why are private hospitals being starved out of existence when the health insurers have recently recorded record profits of more than $5 billion?
Ms Cass-Gottlieb: There will be a number of factors there. They’re not questions, I believe, that we have actively looked at. Some relate to the level of competition among private hospitals, but they need to negotiate with a small number of private health insurers. That leads to difficulties for them in that bargaining situation. We’re also aware that the private hospital sector, from recent events, has been facing significantly increased costs at the same time as they are having to undertake complex negotiations in relation to coverage from private health insurers.
Senator ROBERTS: What I’ll do is I’ll go to the lack of competition that you talked about with the insurance companies and come back to this and the hospitals. There are 11 companies in Australia offering home insurance. We’re going away from health to home. Of these, Suncorp, AAMI and Apia are the same entity and CGU and NRMA are the same entity, meaning there are only eight companies offering home insurance. Is that what you meant by limited competition in insurance?
Ms Cass-Gottlieb: There I was particularly talking about health insurance. But you are right that, partly as a result of prior acquisitions, a number of the groups have multiple brands, but it’s actually one insurance company behind it.
Senator ROBERTS: Similarly, there are 12 insurance companies doing car insurance. IAG owns CGU and NRMA and has underwriting ties to RACV. Separately, Suncorp, AAMI, Apia, Bingle and GIO are all the same entity. This means there are only six companies in the car insurance market hiding behind several different logos. So it’s the same. Are you worried about the lack of competition in the retail insurance market?
Ms Cass-Gottlieb: We are certainly very focused on this. We currently are assessing, under the informal merger assessment regime, a proposed acquisition by IAG of the RACWA, which is the Western Australian Royal Automobile Club. We have put out for public response a statement of issues concerned about the removal of the Royal Automobile Club. Our preliminary view set out in that statement of issues is that they provide a very important competitive constraint.
Senator ROBERTS: We know that, in the home insurance market, insurance companies are putting up premiums on homes and businesses in areas that are supposedly affected by flooding despite never having flooded. In fact it will never flood. The argument is that, owing to climate change, which we’re told is coming sometime in the future, your property is now likely to flood, so premiums are going up, and they’re going up exponentially. I wonder if you use flags like these. Suncorp is making so much money out of insurance that it sold its bank in order to grow its insurance business. That tells you how profitable it is. Have you looked at the basis on which insurance companies are increasing premiums in a low-competition environment using specious claims of global warming when extreme weather events have not changed? There’s been no trend. It’s just flat.
Ms Cass-Gottlieb: We haven’t looked at that specific issue, no.
Senator ROBERTS: The answer for people is not to change insurance companies—they can’t, because they’re all the same. They’ve got similar policies, similar conditions and the same shareholders. Specifically, all five publicly listed insurance companies in Australia have the same shareholders. I’m not trying to verbal you, but I think I asked you if you had heard of BlackRock, and you said no. Was it you?
Ms Cass-Gottlieb: We have heard of BlackRock.
Senator ROBERTS: Maybe I misunderstood. That’s why I checked; I don’t want to verbal you. The most notable common shareholders across all five entities based on top 10 holdings are BlackRock, a global asset manager which owns five to eight per cent of insurance companies. With State Street, it’s the same deal. They’re a global adviser with six to 16 per cent. That’s even more. Vanguard Group is the same type of entity, with five to six per cent. Norges Bank Investment Management has only two per cent, but they have a combined controlling interest, and these funds apparently are interlocked. Are you aware of these significant holdings that basically control our insurance companies?
Ms Cass-Gottlieb: What you are describing in terms of global funds managers and global funds does not surprise me in relation to who would look to invest in insurance companies. As to your comment that they’re interlocked, a number of those will be operated and will be advised and managed independently. It’s possible what you’re referring to is that they have either financing or shareholding agreements relating to the particular investment. Those elements are not ones that we would be aware of.
CHAIR: Senator Roberts, do you have many more questions?
Senator ROBERTS: I can put some on notice.
CHAIR: That would be great.
Senator ROBERTS: I just have a couple more questions. Are you aware that the banks are similar to the insurance companies—Westpac, NAB, ANZ, Commonwealth? Basically we’ve got one bank, it seems, owned by the same controlling shareholders, the same entities that I just mentioned. We have four banks that hide behind four logos, but they have similar policies, similar conditions, similar products and similar strategies. They’re effectively controlled by BlackRock, Vanguard et cetera.
Ms Cass-Gottlieb: In relation to the four banks, I’m also aware that there are both individual Australian shareholders and Australian super fund investors in them as well.
Senator ROBERTS: Is there any consideration given to investigating BlackRock’s behaviour, for example, or State Street’s, Vanguard’s or Norges’s and their connections with each other?
Ms Cass-Gottlieb: Where there are situations where the ACCC sees both common shareholdings and interlocking directorships, we take that into account if we see conduct that we think indicates concerted action, but we would need to see conduct that we considered indicated concerted action between the relevant companies.
Senator ROBERTS: I’ll put five questions on notice.
