The IRS does provide free, printable 1099 forms. Simply to go IRS.gov, and choose the Forms & Pubs option. From there, search for 1099 forms in the search box, choosing from current year or prior year 1099 forms.
The 1099 form comes in a variety of different types, TurboTax explains. A 1099-MISC form is used to report independent contractors' income, while a 1099-K form reports payments distributed to individuals by third-party payment processors. With the 1099-K form, it's important for people to keep good records in order to avoid any double reporting by both the payment processor and the entity that issued the original form of payment.