N.D. Cent. Code § 52-04-17.1
When the bureau reviews a potential employment relationship involving an independent contractor who has a valid identification number issued under section 34-05-01.4 and determines that the party described as an independent contractor is an employee for purposes of unemployment compensation, rather than an independent contractor, the bureau may not require the party determined to be the employer to pay contributions for that employee, or any interest, penalty, or delinquency fee with respect to those contributions, retroactive to the date the relationship with the employee began, unless, however, the bureau determines that the employer willfully and intentionally entered the relationship with the purpose of avoiding unemployment compensation benefits. The bureau may require the payment of contributions for that employee as of the date the order declaring an employment relationship becomes final.
N.D.C.C. § 52-04-17.1