To amend the Internal Revenue Code of 1986 to apply the rules related to the treatment of certain qualified film and television and live theatrical productions to Puerto Rico.

Puerto Rico Film, Television, and Theatre Production Act of 2018 This bill amends the Internal Revenue Code; with respect to rules that allow the expensing of certain costs of qualified film, television, and live theatrical productions; to: (1) apply the rules to Puerto Rico, and (2) extend the rules through 2021 for Puerto Rico. (Under current law, the rules apply through 2017 for productions with costs that include a specified amount of compensation for services performed in the United States.)