Answer:
No, a reversal of a ruling shall not be given a retroactive application if it will be prejudicial to the taxpayer.
Explanation:
Based on the information provided it can be said that No, a reversal of a ruling shall not be given a retroactive application if it will be prejudicial to the taxpayer. Meaning that the BIR can not assess ABC Printers for back taxes because ABC Printers was following the rulings made by BIR at that time correctly, the change in ruling applies to taxes only after the change has been made and not before. Therefore as long as ABC Printers begins paying taxes now, then the BIR has no standing.