Shiner, my accountancy insurance covers me for investigation insurance as well included in the price. If I didn't have this insurance and the taxman wanted to investigate me, the accountancy fees could run into thousands as a worst case scenario, which would seriously put a big dent in my cashflow causing problems. As I suffer from a chronic illness and my work patterns are erratic I've taken out this insurance for peace of mind because a couple of years ago I had to pay out an extra £450 in accountancy fees for discrepancies involving the taxman. If I worry about things (i.e. work, then my joints flare up (chronic arthritus), causing me to take more time off work because of my illness, so I try to minimise any stress in my life to keep my quality of life decent, so paying an accountancy insurance gives me peace of mind.