Depending on the type of sales you go into, the majority will not allow visible ink. Real estate agents rarely show off any visible ink at the office or with clients. Some areas of retail sales ask for cover-up as well. Even in the tricky business of sales, some companies believe clients will not find you trustworthy if you have tattoos. However if you are not in a customer-facing role, such as working in a call centre, your physical appearance and tattoos may not be restricted.