Vitamin B1 (Thiamin): Vitamin B1 is a water-soluble vitamin that the body requires to break down carbohydrates, fat, and protein. Every cell of the body requires vitamin B1 to form adenosine triphosphate (ATP). Vitamin B1 is also essential for the proper functioning of nerve cells.
If an employee is involuntarily terminated, his/her personnel records must be retained for one year from the date of termination. Under ADEA recordkeeping requirements, employers must also keep all payroll records for three years.
All payroll tax information must be kept for a minimum of 4 years, and if the W-2 was undeliverable then you are required to keep it on file for a minimum of 4 years, according to the recordkeeping section of pub 15.ther employment records, I keep one year after separation, or one year after application, and then shred. EEOC rules require that one-year retention, and no EEO charge is timely and valid after 300 days, so shredding older files and applications is a darned good idea.