In order for a statement to be accepted it needs to come from a professional tax preparer and must be on company letter head. The verbiage must state that you filed head of household correctly for the 2016 tax year. A separate statement from a professional tax preparer would also need to be submitted for your spouse for that year. I'm forwarding this statement to the processing center for review but it will most likely be denied.
The other option is to submit a signed and dated 2016 1040X tax form changing you and your spouse's filing status to a correct status. This form can be accessed on the IRS website [www.irs.gov]www.irs.gov. The same will need to be submitted for the 2017 tax year as both returns were head of household for that year as well.
