Whats the penalty for underpayment of state taxes in Louisiana?

[Critter]

A. UNDERPAYMENT PENALTY - Louisiana imposes an underpayment penalty on an individual's failure to sufficiently pay income tax throughout the year by withholding or declaration payments. If adequate tax was not paid in a period, you may owe a penalty of twelve percent per annum (12%) on the underpayment.

GENERAL INFORMATION A. UNDERPAYMENT PENALTY ...

www.revenue.louisiana.gov/TaxForms/210Ri(1_09)F.pdf