Administrator, Accounting

CMHA Thames Valley Addiction and Mental Health Services • London, ON

8d • Onsite

About The Position

The Accounting Administrator plays a key role in supporting the Finance team by ensuring accurate and timely processing of financial transactions, including vendor payments, rent and mortgage entries, statutory remittances, and quarterly invoicing. This role requires strong technical proficiency in Excel, a solid foundation in accounting principles, and a high level of attention to detail. The Accounting Administrator will collaborate effectively with internal teams and external vendors, demonstrating clear and professional communication. Success in this position also demands strong organizational skills, including the ability to manage multiple priorities, respond to ad hoc tasks, and adapt to evolving financial and organizational needs.

Requirements

• College diploma or University degree in Accounting, Finance, or Business Administration (primary proof of credentials will be required during the hiring process i.e. original degree/diploma or official transcript)
• Minimum 2 years of experience in Accounts Payable, bookkeeping or general accounting
• Current, satisfactory Criminal Record Check

Nice To Haves

• Driver’s licence and access to a vehicle with adequate insurance to carry out job duties
• Experience with Microsoft Dynamics GP an asset
• Advanced Excel skills: VLOOKUP/XLOOKUP, SUMIF/SUMIFS, pivot tables, data cleaning.
• Ability to manipulate data for reconciliation and reporting.
• Strong accounting knowledge, including coding, accruals, and expense allocation.
• Bilingual in both official languages, preferred; Une préférence sera accordée aux personnes possédant des compétences dans les deux langues officielles du Canada

Responsibilities

• Process vendor payments via EFT and cheque with accurate coding to AP/AR accounts in the Great Plains (GP) system
• Process and validate Smartsheet invoices; collaborate with Housing team for follow‑ups
• Communicate with vendors to update EFT banking details and maintain accurate vendor profiles
• Accurately code and process rent payments, including HPP program entries
• Enter and verify mortgage payment entries in GP
• Ensure accuracy of coding and correct period allocation
• Enter deposit batch and maintain complete supporting documentation
• Processing of Healthcare of Ontario Pension Plan (HOOPP), Employer Health Tax, WSIB.
• Prepare monthly invoices & quarterly invoices (OPSEU, BOT (security clearance needed), Library etc.)
• Assist with processing timely and accurate biweekly payroll for union and non-unionized employees (approximately 600 employees)
• Assist with payroll year-end related tasks
• Produce payroll reports
• Back-up for issuing Records of Employment (ROEs)
• Support with ensuring mileage reports are approved and keyed in for processing
• Aid in ensuring credit card statements are approved and all receipts are submitted and scanned into accounting folder
• Actively engage in learning opportunities, events, meetings, and team building activities scheduled by the organization for staff members
• Act as a resource to other staff and community partners; seek out and listen to input from other staff and community partners
• Be supportive of, and an active participant in, the on-going evolution and growth of the organization
• Complete required documentation as per organization standards, discipline-specific guidelines and standards and PHIPA legislation
• Ensure that confidential information and material is handled in accordance with applicable privacy laws and organization policy

Benefits

• Immediately enrolled in the Healthcare of Ontario Pension Plan (HOOPP)
• After a 90-day waiting period, will be enrolled in extended health care benefits

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: Associate degree
• Number of Employees: 11-50 employees