Is it permissible to partner with someone who uses pirated software under the pretext of purchasing licenses later, while currently having the ability to purchase them, knowing that one of the partners uses licensed software?

It is not permissible to use pirated software, as it constitutes an infringement on intellectual property rights, which are protected by Islamic law. The Islamic Fiqh Academy has issued a ruling that copyrights and invention rights are legally safeguarded. It is also impermissible to cooperate with those who use such software, based on the Almighty's saying: "And do not cooperate in sin and aggression." It is best to choose a trustworthy partner, for Allah Almighty blesses partnerships that are free from betrayal.