I have a family of 5 (2 adults & 3 kids). My wife works full time and I'm self employed. I filed our personal taxes in Feb. Now, how do I file my self employment?

If your business is a sole proprietorship or single member LLC, you need to file that on Schedule C that is part of your personal tax return. You will need to amend your taxes to include.

https://ttlc.intuit.com/replies/7276596

My business is a partnership. Do I still need to amend the return or can I just file another return?