Section R865-9I-18 - Taxpayer Records, Statements, and Special Returns Pursuant to Utah Code Ann. Section 59-1-1406(1) Every taxpayer shall keep adequate records for income tax purposes of a type which clearly reflect income and expense, gain or loss, and all transactions necessary in the conduct of business activities.(2) Records of all transactions affecting income or expense, or gain or loss, and of all transactions for which deductions may be claimed, should be preserved by the taxpayer to enable preparation of returns correctly and to substantiate claims. All records shall be made available to an authorized agent of the commission when requested, for review or audit.Utah Admin. Code R865-9I-18