Copies of the electoral register for each constituency are kept at the local authority office located in the constituency areas, ie Ramsey holds copy registers for Ramsey North and South Wards, and these are available for inspection during normal office hours.
You can use this link to find out where your area list is available for inspection https://www.gov.im/categories/home-and-neighbourhood/elections-and-voting/electoral-register-and-inspection/
The register is also available at IOM Government Crown and Elections Unit, the General Registry and the Tynwald Library in Douglas
If not on the current list you can register at the Crown and Elections Unit, or online by using this link https://www.gov.im/categories/home-and-neighbourhood/elections-and-voting/register-to-vote/request-a-voting-registration-form/
The process involves the electoral unit sending a postal form to your home address which you must complete and return. In January all households should receive forms for review of the register and these will also have to be returned to ensure inclusion on the register.