If you meet the state's requirements and qualifications and are unable to register in person because of physical disability, religious beliefs, military service, or because of temporary absence, you may register by mail.

You should request an absentee voter registration affidavit and a standard voter registration form from your town or city clerk or from the Secretary of State's Office.  Supervisors of the Checklist must review and approve your application. They are required to meet on a date 6 to 13 days before the primary and again before the general election. Unless the supervisors hold voluntary sessions before then, the supervisors will review your application at that meeting. You are registered to vote when the supervisors approve the application. The absentee voter registration affidavit must be witnessed and then both the affidavit and the voter registration form are to be returned to your town or city clerk.

If you request an absentee ballot and are not registered, the clerk will send you both your absentee ballot and your absentee voter registration forms and instructions. 

Find your clerk’s contact information, your party membership status, or the status of your absentee ballot request here: https://app.sos.nh.gov