It is extremely important that you put aside money every time that you are paid so you can pay your estimated taxes later.
While a freelancer could qualify for certain deductions, it may not mean the same will apply to you.
Your employer sends you a W2 each January to report your wages and withholding.
The W-9 form is also used in certain other less common circumstances, related to investment and debt-collection.
When you , attach each of the 1099 forms you have received.
For people who want some help staying organized, a is a great resource.