Accounting is a systematic way of keeping financial records that is important for businesses for several reasons: to gauge financial health, ensure savings, secure funding, and achieve goals. Some key accounting terms and concepts include assets, liabilities, income statements, and balance sheets. To properly account for a new business, one should open a bank account, track expenses, develop a bookkeeping system, set up a payroll system, determine tax obligations, and reevaluate methods as the business grows. Maintaining accurate financial records is essential for effective decision making and long-term success.