2018 Form 1 Instructions. 30 must complete Massachusetts Schedule D (see line 6 instructions).This letter provides routing instructions for an important bank transaction that requires special handling. Letter of Instruction–Legal Name Change. For 2018, you will no longer use Form 1040A or Form 1040EZ as you may have in the past. While opening a joint account and filling out a beneficiary designation form are easy, they are not the best choice in every situation.