IRS tax forms

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The United States Internal Revenue Service (IRS) uses forms for taxpayers and tax-exempt organizations to report financial information, such as to report income, calculate taxes to be paid to the federal government, and disclose other information as required by the Internal Revenue Code (IRC). There are over 800 various forms and schedules. Other tax forms in the United States are filed with state and local governments.

The IRS numbered the forms sequentially as they were introduced.^[1][2]