Phone:
General questions: 800-986-3343
Open Mon. – Fri., 7 a.m. – 7 p.m. CT
Retirement plan participants: 800-547-7754
Open Mon. – Fri., 7 a.m. – 9 p.m. CT
General Website: https://www.principal.com/
Contact Us Page: https://www.principal.com/contact-us