In: Accounting
Yes ernie's claim is lawfull andan his argument should be sought.
Here ernie is a federally authorized tax practitioner acted on behalf and filed returns for bert. so the communications between Bert and ernie should be considered a privileged communication.
under the Internal Revenue Code section 7525(a)(1) rule says that , With respect to tax advice, the same common law protections of confidentiality which apply to a communication between a taxpayer and an attorney shall also apply to a communication between a taxpayer and any federally authorized tax practitioner to the extent the communication would be considered a privileged communication if it were between a taxpayer and an attorney.
So as per the provisions of this rule Ernie's claim is completely lawful and he should not have to produce what the IRS sought.