Productivity Common Questions About IRS 1099 S Were you involved in a real-estate sale? Check your mailbox for the 1099 S! You’ve almost made it through all of the 1099 forms! We are wrapping up PDFfller‘s review with ... Tax Guide Exploring Other Kinds of 1099 Forms Earlier this week we discussed the most common 1099 form, the 1099-Misc. A quick refresher: the 1099-Misc is issued for any unclassified income over $600. It is most commonly issued ...