I had a brainwave last week to prepay our IP insurance (four policies due in the first fortnight of July - bummer). I called the insurer and cannot prepay so I asked about cancelling the current policies and starting them exactly the same but in June. I was told the underwriter had changed, and that would mean I'm taking insurance with a different underwriter and the price may change. One house we did the exercise for jumped from approx $950 to more than double (over $2K) with no changes whatsoever. That is just crazy, and obviously, I left things just as they are. Thankfully I checked before just blindly rushing in. This could be a trap for anybody else looking at this as a way to bring expenses into this month.