Other accountants work with a corporation's management in analyzing costs of operations, products, and special projects. Usually this will also involve budgeting and preparing reports which highlight any variances.
Some accountants work as a corporation's internal auditor while many accountants are independent certified public accountants (CPAs) who audit the financial statements of many corporations and other organizations.
Some accountants and CPAs choose to have their own accounting firm and may focus on assisting small businesses with their accounting systems, financial statements, income tax returns, tax planning, investment decisions, etc.