Wrong Form of the Social Security

by irene

There are 2 business and I have been doing my income tax by a bookkeeper. The other business went with another accountant and he said that he had found a form of that business with his social security that he had made that money. I was under the assumption that it was all in my name. I paid income tax on that form, form because I had placed that bid and every time they paid for that work and paid income tax on it. Now the account says that it is all wrong. What is my liabilty on that?