At will employment describes the employment relationship between employers and employees in almost every state. At will employment means that the Company does not offer tenured or guaranteed employment for any period of time to any employee without an employment contract or written direction from the CEO/President.
In at will employment either the Company or the employee can terminate the employment relationship at any time, with or without cause, with or without notice.
This does not mean that employers can arbitrarily fire employees without good faith communication, fairness, and non-discriminatory practices. In fact, courts are increasingly finding for employees in litigation. Employers must demonstrate a good faith effort to correct the employee's performance or the other issues that led to employment termination.
"Because we have at will employment" should not be used as a reason to fire an employee.
See a sample At Will Employment Policy.