accounting department
Refers to the department within a company responsible for accounting, bookkeeping, and financial reporting.
He works in the accounting department.
Please submit the invoice to the accounting department.
財務部 is the finance department, which handles broader financial management, funding, and investments, whereas 経理部 focuses on day-to-day accounting and bookkeeping.
Compound of 経理 (accounting, management of accounts) and 部 (department, division).