federal law does not require 2 married filing separte returns if you live in a community property state. you can file a joint return From IRS PUB 555 Community Property page 2. If you are married, your tax usually will be less if you file married filing jointly than if you file married filing separately.
since we can't see any of the documents, the tax returns or IRS notice, I suggest, unless you want to handle this yourself, you submit the notice to either a tax pro to handle or
The Audit Defense service is provided by TaxResources, Inc., also called TaxAudit.com, in partnership with TurboTax. If you paid for Audit Defense and you received a notice, call TaxResources, Inc. at 877-829-9695, or report your notice on their website at http://intuit.taxaudit.com/. Do not contact the tax agency until you have spoken to TaxResources. They may contact them on your behalf. if you did not pay for audit defense upfront there will be fees.
