Within 10 days after completion of his assessment of franchise tax, the commissioner shall serve upon each taxpayer a statement of the total amount of franchise tax payable and the manner of computation thereof.
The failure of any taxpayer to receive a statement of assessment as herein required shall not invalidate any such assessment or the lien thereof, nor shall it relieve the taxpayer of the obligation of payment of the assessment as required by this act.
N.J.S. § 54:29A-21