Is an accountant burdened by sin or suspicion of unlawfulness in his earnings if he works in an office that sends fictitious invoices to government agencies, and he does not interfere with the matter of these invoices?

Issuing fictitious invoices is a lie and an unlawful appropriation of people's money. The office owners should be advised and the religious ruling explained to them, and the authorities should be informed of the truth of the matter. Money earned from this work is permissible if it does not involve aiding in a forbidden act, based on the permissibility of dealing with an owner of mixed wealth. However, it is more prudent to seek work that is free from violations.