What is the ruling on working in a private company as an invoicing officer, knowing that the purchase orders are signed and stamped with the names of renters of commercial licenses through which they evade exorbitant taxes? And is the livelihood resulting from this work unlawful?

It is not permissible to lease a commercial register if it involves a violation of state laws, due to the principle of acquiring benefits and warding off harms. Furthermore, leasing the register for a specific amount, in addition to the lessee bearing the taxes associated with the register, makes the rent unknown unless the taxes are fixed at a specific amount. The preferable approach is for license holders and owners of commercial registers to lease shops, and then lease those shops along with their commercial register to others for a known amount. Alternatively, they can enter into a partnership agreement with those who desire the commercial register, whereby they agree on the distribution of profits, and losses are borne proportionally to the capital invested. There is no harm in tax evasion through permissible stratagems if the taxes are unjust and oppressive. There is no harm in the aforementioned work or in the wage received for it, even if the invoices are signed in the name of the lessor, as long as he is agreeable to it and it does not result in injustice to others or unlawful consumption of their wealth.