My company has a hospitalization insurance with Aviva. When I got back the refund, I got all the amount back less the gst. My colleague who was processing the claim told me that the gst part of the bill is not claimable.

I decided to check with another insurance company, NTUC Income, about the hospitalization insurance and they also told me that the gst portion of the bill was not claimable. Anyone knows whether this is a industry standard.