This will reduce the maximum amount of advance payments you can make to that employee. A new form will certify that the spouse does not have a Form W-5 in effect and will increase the maximum amount of advance payments you can make to that employee. Invalid Form W-5. The Form W-5 is invalid if it is incomplete, unsigned, or has an alteration or unauthorized addition. The form has been altered if any of the language has been deleted.
Any writing added to the form other than the requested entries is an unauthorized addition.
If you receive an invalid form, tell the employee that it is invalid as of the date he or she made the oral or written statement. For advance EIC payment purposes, the invalid Form W-5 is considered void. You are not required to determine if a completed and signed Form W-5 is correct. However, you should contact the IRS if you have reason to believe it has any incorrect statement. How to figure the advance EIC payment.