Code of Federal Regulations Title 26. Internal Revenue § 26.301.6688–1 Assessable penalties with respect to information required to be furnished with respect to possessions

(c) Reasonable cause—(1) The penalty set forth in paragraph (a) of this section will not apply if it is established to the satisfaction of the Commissioner that the failure to file the information return or furnish the information within the prescribed time was due to reasonable cause and not to willful neglect. An individual who wishes to avoid the penalty must make an affirmative showing of all facts alleged as a reasonable cause for failure to file the information return on time, or furnish the information on time, in the form of a written statement containing a declaration that it is made under penalties of perjury. This statement must be filed with Internal Revenue Service Center where Form 8898 must be filed. In determining whether there was reasonable cause for failure to furnish the required information, account will be taken of the fact that the individual was unable to furnish the required information in spite of the exercise of ordinary business care and prudence in his effort to furnish the information. An individual will be considered to have exercised ordinary business care and prudence in his effort to furnish the required information if he made reasonable efforts to furnish the information but was unable to do so because of a lack of sufficient facts on which to make a proper determination.