Accounting Administrative Assistant

Accounting Administrative Assistant Job Details: Location – Corporate, Rancho Cucamonga – Rancho Cucamonga, CA 91730. Position Type – Full Time. Salary Range – $70,634.00 – $74,000.00 per year. Join a team where organization, precision, and collaboration make a real impact. National CORE is seeking a highly organized and detail-oriented Accounting Administrative Assistant to support our Accounting Department. Reporting directly to the Controller, this role is essential in coordinating annual audits and tax return processes, managing vendor administration, supporting special projects, and ensuring smooth day-to-day accounting operations. What You’ll Do Audit & Tax Administration Coordinate and track annual audits and tax return processes from start to finish. Maintain systems and workflows that organize and streamline audit and tax activities. Manage year‑end bank and mortgage confirmations while serving as a liaison with external auditors. Track audit and tax filing deadlines and proactively communicate status updates. Coordinate requests for information between auditors, investors, internal departments, and external partners. Upload and organize financial statements, workpapers, journal entries, and supporting documentation. Manage electronic filing systems for audits and tax returns. Monitor project transitions from construction to operations and maintain accurate audit records. Review audit and tax invoices, coordinate payment processing, and investigate outstanding balances. Assist with correspondence from taxing authorities and coordinate responses with internal teams and audit firms. Attend audit meetings, document action items, and ensure timely follow‑up. Coordinate certified mailings and maintain filing records as needed. Accounting & Administrative Support Distribute and manage incoming department mail. Organize and maintain accounting files and department records. Prepare reports and support special projects for management. Provide administrative support to the Controller and Accounting Department. Assist with departmental meetings, events, and team functions. Support departmental operations during vacations, peak workloads, and special initiatives. Participate in company‑sponsored training, team‑building activities, and professional development events. Vendor Management Assist with new vendor setup and maintenance in Yardi. Ensure all required documentation and approvals are properly recorded. Update vendor records and maintain accurate information. Monitor vendor communications and provide timely support to internal and external stakeholders. What We’re Looking For Required Qualifications Bachelor’s degree or equivalent combination of education and experience. Minimum of 3 years of administrative experience supporting accounting, finance, or business operations. Advanced proficiency with Microsoft Office, particularly Excel and Word. Exceptional organizational and time‑management skills. Strong attention to detail and accuracy. Ability to manage multiple priorities and meet deadlines in a high‑volume environment. Excellent written and verbal communication skills. Self‑motivated, proactive, and team‑oriented mindset. Preferred Qualifications Experience with Yardi property management software. Experience supporting audits, tax processes, or accounting operations. Why You’ll Love This Role Work closely with executive leadership and gain exposure to high‑level accounting operations. Play a key role in annual audits and tax processes that impact the organization. Join a collaborative team that values accuracy, efficiency, and continuous improvement. Opportunity to grow your accounting and administrative expertise within a mission‑driven organization. Additional Requirements Ability to operate standard office equipment and work primarily in a sedentary office environment. Ability to work additional hours during peak audit and tax seasons. Reliable transportation for occasional business‑related errands, including visits to the post office and local vendors. FLSA Status: Non‑Exempt #J-18808-Ljbffr National CORE