20 CFR § 345.123 - Penalty for delinquent or false contribution reports.
(a)Delinquent reports. Unless waived under paragraph (b) of this section, the failure to file a contribution report on or before the due date shall cause a penalty to accrue of five percent of the amount of such contribution if the failure is for not more than one month, with an additional five percent for each additional month or fraction thereof during which such failure continues, not exceeding 25 percent in the aggregate.
(b)Waiver of penalty. The Chief Financial Officer may waive all or a portion of the penalty imposed under paragraph (a) of this section consistent with the criteria applicable to waiver of interest as provided for in § 345.122(b) of this part.
(c)Penalty on net amount. For the purpose of paragraph (a) of this section the amount of contribution required to be shown on Form DC-1 shall be reduced by the amount of any part of the contribution that is paid on or before the date prescribed for the payment of the contribution and by the amount of any credit against the contribution that may be claimed upon the DC-1.
(d)False reports. If a fraudulent contribution report is made, a penalty equal to 50 percent of the amount of any underpayment shall be imposed on the employer.