What is difference between Corp to corp & W2 & 1099? Can anyone tell me?
What its effects on Taxes? Reply me.

Thanks in advance

W-2s are issued to employees to document salary or wages.

Form 1099-MISC is required to be issued to ANYONE who is NOT an employee who receives payment or compensation for work done or services rendered if the compensation exceeds $600 per year.

Copies of both the W-2 and the Form 1099-MISC are sent to the IRS and state tax departments to provide a paper trail of compensation paid to employees (via the W-2) and to independent contractors (via the Form 1099-MISC).

However, the Form 1099-MISC is NOT REQUIRED if the work or services rendered is between corporations. That is what is meant by corp-to-corp.