file income online return tax

Does anyone know how I would be able to cancel my tax return? I filed online and they have accepted.?

Now I want to stop and present differently. The reason is because I want my child's father to take his place. (Living Together) Does anyone know a phone number I can call? or a website? please help if I feel amended to remove my son. When his father can file applications yet? Or is it that gives me problems?

It is not possible. You must file a amended return. It is often not easy to change just to take the deduction. If benefit.

How to File Your Taxes Online : Checking for Tax Errors