Unfortunately, you will not be able to include your adopted baby on your Tax Return until you receive their social security number from SSA.
You have two options regarding filing your Tax Return in this situation:
1) You can file now, without your baby as a Dependent, and then Amend your Tax Return after you have their social security number. If you choose this option, you can click here for instructions on Amending your tax return: How to Change a Tax Return You Already Filed.
2) You can wait to file until you receive their social security number before you file your Tax Return.
