N.H. Code Admin. R. Rev 1505.01
A taxpayer, who has underpaid their estimated tax, shall complete and file Form DP-2210/2220, “Exceptions and Penalty for the Underpayment of Estimated Tax”, by providing the information as described in Rev 2905.02.
Source. #10662, eff 8-27-14; ss by #13977, eff 5-23-24