It's always wonderful if the original asker would return and follow up with missing info. 1099-Misc for what sort of payment? @solicito need to provide more details.

In case someone else stumbles onto this topic, this statement: "for single filing status if under age 65 is $12,400. If your income is below that threshold, you generally do not need to file a federal tax return." is clearly wrong just based on the layout of the 1040. The standard deduction is line 12. There's still a whole 'nother page to finish.