Alhamdulillah. The portion that the company pays at the end of each year is a portion of the employee's remuneration and salary. Since this money is kept separately in a specific account for the employee, it is treated as an asset owned by the employee. But on the job , Not being allowed to intervene in the money before retiring undermines its ownership of the money ; Although does not cancel the original ownership. This money kept by the company in the interest bank is nothing but a gross injustice. Since they have illegally interfered with his rights by depositing the money. Even if we assume that he is being prevented from interfering with this money on the basis of his consent by signing the employment contract . But under no circumstances can it be legal for them to deposit this money in an interest-bearing business. After receiving this money, it will be necessary for the employee to: make it interest free ; Although at first he was not satisfied. Because this interest arises from its money. He will free the wealth in this way: give the extra interest to a good cause ; So that you can free yourself from haraam goods. However , do not leave the extra interest to them. And if the issue is whether to increase this wealth through net interest or through haraam mixed investment: then the second option is definitely less serious than the first. In that case too, after accepting the money, it must be freed from the haram part. Will try to determine the amount of haram part as much as possible. GOD is Omniscient.