I have started my own consultancy company. I have found a client for whom I have been working full time now for a few months. Since I am a consultant, I choose my own salary. I am not part of any pension fund which allows me to pay myself even a higher salary. Currently, I have moved to another country in order to do the work for the said client. Now my client wants to hire me. If I get hired, I get such benefits like sick leave, paid vacation, paid pension, and so on. However, this means that my salary will be reduced to 1/3 of what I can currently make without these benefits. I keep having discussions with my client on why they should keep me as a consultant and I am out of arguments.
My main argument to keep me as a consultant was the possibility for me to do some other side gigs through my company (which is not fully true as I am very busy with the current work). Can anyone recommend or give me some ideas on good reasons to keep me as a consultant for a longer time? My client's one of the arguments on why I should be employed is that most of my colleagues are employed and there may be some discrepancies (maybe even envy?).
I work within different departments in this company, so I am very versatile and I can see that there will be a lot of more projects to do.
It is not possible to be employed and not have the above-mentioned employment benefits.
EDIT: The client wants to hire me because the money that comes for projects only allows to include employees' salaries. Consultant salaries cannot be included into the project costs so it makes the project more expensive.