Accounting Assistant II - Non-Profit
Arc Of Greater Prince William • Woodbridge, Virginia • Part Time
Posted on Fri, Jun 12, 2026
Part-Time Accounting Assistant II (Non-Profit IDD Provider)
Location: Woodbridge, VA 22193
Schedule: Part-Time 20 hours per week during business hours 9am-5pm, flexible.
Pay: $25/hour
Position Summary
The Accounting Assistant supports the Finance Department of a nonprofit organization serving individuals with developmental disabilities. This position is responsible for assisting with accounts payable functions, vendor management, billing processes, financial record organization, and other accounting-related activities that help ensure the efficient operation of the agency's financial systems.
Working closely with the Accounts Manager, the Accounting Assistant provides administrative and accounting support by organizing invoices, processing vendor information, assisting with client invoicing, supporting monthly billing activities, and contributing to special projects and financial analyses. The ideal candidate is detail-oriented, organized, proficient in Excel, and able to work collaboratively in a team environment while maintaining accuracy and confidentiality.
This position offers an opportunity to contribute to the financial stewardship of a mission-driven organization dedicated to enhancing the lives of individuals with developmental disabilities.
Roles and Responsibilities
- Support the Accounts Manager with the following:
- Preparing/Organizing bills for all properties
- Supporting with monthly Amazon Billings
- Supporting corporate card billings
- Paying invoices when directed by the Accounts Manager
- Collecting required data and setting up new vendors
- Collecting and entering data for monthly client invoicing
- Aiding Accounts Manager with seasonal projects & analysis
- Additional/Occasional Responsibilities
- Supporting payroll with monthly payroll audits & preparation
- Sorting and organizing accounting mail
Requirements
- Associate’s degree or higher in accounting and/or minimum of 3 years of previous experience in accounting.
- Proven experience with Excel
- Able to work 20 hours a week
Preferred Skills
- Experience with accounting systems such as Sage Intacct, Quickbooks, etc.
- Ability to process instructions and work in a team environment
About the Organization
The Arc of Greater Prince William / INSIGHT, Inc. is a leading nonprofit organization dedicated to supporting individuals with intellectual and developmental disabilities (IDD) in living full, meaningful, and self-directed lives. Through a comprehensive range of person-centered services, the organization empowers individuals and families while advocating for inclusion, dignity, and opportunity.
Part-Time 20 hours per week during business hours 9am-5pm, flexible at main office in Woodbridge, VA 22193