I just started my own team and its the first time that I will be coaching when I'm not under another organization. I'm planning on getting sponsors so I need to know what I need to do about a tax id
You should also consider that a "team" is much different than an "organization". The last time I checked, there was a fee required to register as a 501 (don't remember what the cost was, sorry). If you have an "organization", you have several teams that can split that cost. If you have a "team", all the cost is yours alone. You should factor that into your decision.