Anyone starting a new American business should be aware of their federal IRS tax responsibilities. Here are the top seven things the IRS wants you to know if you plan on opening a new business this year.

1. First, you must decide what type of business entity you are going to establish. The type your business takes will determine which tax form you have to file. The most common types of business are the sole proprietorship, partnership, corporation and S corporation.
    
2. The type of business you operate determines what taxes you must pay and how you pay them. The four general types of business taxes are income tax, self-employment tax, employment tax and excise tax.
    
3. An Employer Identification Number is used to identify a business entity. Generally, businesses need an EIN. Visit IRS.gov for more information about whether you will need an EIN. You can also apply for an EIN online at IRS.gov.
    
4. Good records will help you ensure successful operation of your new business. You may choose any recordkeeping system suited to your business that clearly shows your income and expenses. Except in a few cases, the law does not require any special kind of records. However, the business you are in affects the type of records you need to keep for federal tax purposes.
    
5. Every American business taxpayer must figure taxable income on an annual accounting period called a tax year. The calendar year and the fiscal year are the most common tax years used. 
    
6. Each taxpayer must also use a consistent accounting method, which is a set of rules for determining when to report income and expenses. The most commonly used accounting methods are the cash method and an accrual method. Under the cash method, you generally report income in the tax year you receive it and deduct expenses in the tax year you pay them. Under an accrual method, you generally report income in the tax year you earn it and deduct expenses in the tax year you incur them.
    
7. Visit the Business section of IRS.gov for resources to assist entrepreneurs with starting and operating a new business.

Links:

• Starting A Business
• Operating A Business
• Closing A Business
• Publication 4591, Small Business Federal Tax Responsibilities (PDF 470.1K)
• Publication 334, Tax Guide for Small Business (PDF 286.2K)
• Order Publication 1066C, A Virtual Small Business Tax Workshop DVD