Section 44-18.1-25 - Rounding rule(A) After December 31, 2005, each member state shall adopt a rounding algorithm that meets the following criteria: (1) Tax computation must be carried to the third decimal place, and(2) The tax must be rounded to a whole cent using a method that rounds up to the next cent whenever the third decimal place is greater than four.(B) Each state shall allow sellers to elect to compute the tax due on a transaction on an item or an invoice basis, and shall allow the rounding rule to be applied to the aggregated state and local taxes. No member state shall require a seller to collect tax based on a bracket system.R.I. Gen. Laws § 44-18.1-25
P.L. 2006, ch. 246, art. 30, § 12.