Is working on an analytical reporting program for a company whose financial statements contain usurious items, and modifying these reports, considered forbidden?

As long as the company's activity is permissible, working for it is permissible in principle. However, it is not permissible to directly engage in a prohibited act. Regarding the inclusion of usurious loans in financial statements, and their review or amendment, the Permanent Committee for Issuing Fatwas has ruled against it. This is because it is not permissible for a chartered accountant to review financial data that includes usurious accounts, as this constitutes cooperation in sin and aggression.