Form 1099 is an information return used to report various types of income other than wages, salaries, and tips. It is filed by businesses, individuals, and other entities to report payments made to others. The most common types are 1099-MISC for miscellaneous income, 1099-INT for interest income, and 1099-DIV for dividend income. Generally, anyone who makes certain payments of $600 or more to a recipient in the course of a trade or business must file a Form 1099. The filing deadline is typically January 31 for payments made in the previous calendar year.