Short answer: It depends on the country and often on the state or region within a country. In the United States, you do not usually have to re-register every year, but you may need to update your registration if you move, change your name, or if your status is temporarily closed or purged in your area. In the United Kingdom, you don’t register anew for every election; you register once and update details as needed. Rules vary by country and jurisdiction, so it’s essential to check your local election office or official government site for current requirements. If you’d like, specify your country and (if in the U.S.) your state, and the exact voting scenario (federal, state, local) to get precise guidance.