6. Bookkeeper
Being employed as a bookkeeper is a flexible opportunity because you have the option of working as a freelancer or being on a payroll. There are both full and part-time bookkeeping job opportunities available on the market, so as a retiree, you can find something that fits your exact needs.
Overall, the earning probability is much higher if you’re working as a freelance bookkeeper as compared to an employee. You could possibly work part-time in your retirement and make a nice income without working too many hours. The job of bookkeeper is a great match for retired accounting teachers, as well as other teachers with math or business qualifications and experiences.