It was my CPA's fault and I paid him over $ 600 to do the audit and I ended up spending a week in St . Paul , MN with IRS people making me find receipts for things my CPA claimed on my taxes that were not allowed . He will not reimburse me back for the penalties when it was his fault . Do I have a case if I take him to small claims ? I asked for reimbursement and he ignores me . Doesn't he have insurance for errors and omissions ?