The Principia PrinBill

Welcome to PrinBill

PrinBill provides online access to view your monthly eStatement, set up a payment plan, and make payments, using industry-compliant secure access.
Authorized User Information:   

Authorized Users have their own individual online access to student PrinBill accounts to view monthly eStatements, to set up a payment plan and to make payments.

  • College students click here for instructions to set up an authorized user
  • Authorized Users click here to change your email address
  • Click here for Authorized User login and forgotten password instructions
Principia School

Principia School

Parents of Students and other Authorized Users


Authorized User Login

Payment Plan Dates
Open Enrollment Period: August 1 - 14
Payment Plan Auto-Enroll: August 15  
Number of payments: 10 per year 
Payment due dates:August 26January 26
 September 26February 26
 October 26March 26
 November 26April 26
 December 26 May 26
Link to:How to Enroll in the School Payment Plan
 Payment Plan Rollover Information
Information and How To's
Screenshots Videos
The Principia School PrinBill Guide Login/View eBill
How to Make a PrinBill Payment Set up Payment Plan/Make Payment
How To View Your eBill  
Billing Services - School Accounts
Cheryl CarbonellPhone Number:314.514.3122
 Email Address:Cheryl.Carbonell@Principia.edu
Milly MensingPhone Number:314.275.3554
 Email Address:Milly.Mensing@Principia.edu
           Principia College

Principia College

Current Students and Authorized Users


Student Access       Authorized User Login

Payment Plan Dates
Open Enrollment Period: August 1 - 14 and December 1 - 14
Payment Plan Auto-Enroll: Fall, August 15 / Spring, December 15
Number of payments: 4 per semester 
Payment due dates:FallSpring
 August 26December 26
 September 26January 26
 October 26February 26
 November 26March 26
Link to:How to Enroll in the College Payment Plan
Payment Plan Auto-Enroll Information
Information and How To's
Screenshots Videos
Principia College PrinBill Guide Login/View eBill
How to Make a PrinBill Payment Set up Payment Plan/Make Payment
How To View Your eBill  
Billing Services - College Accounts
Milly MensingPhone Number:314.275.3554
 Email Address:Milly.Mensing@Principia.edu
Cheryl CarbonellPhone Number:314.514.3122
 Email Address:Cheryl.Carbonell@Principia.edu

This system may have occasional downtime for maintenance. These times, all Central timezone, are slated for 3-4am daily, 12:01am-4am on Sundays, and 3rd Saturday of the month 11pm-7am Sunday.

About PrinBill The Principia