California Court Holds Reasonable Cause for Penalty Abatement due to the Advice of a Professional only Qualifies when Ambiguity Exists for the Taxpayer

The Ninth Circuit Court of Appeals held that erroneous advice from an accountant that an estate tax return (IRS Form 706) could be extended for filing and payment purposes by one year did not qualify for penalty abatement as “reasonable cause.”In Knappe v....