Around 3,000 households still need to return their electoral registration form, which they should have received over the past month.
Reminder forms have now been issued to all those who have not yet made a return.
Electoral registration officer Michael Forbes said: “Some people may not realise that you have to complete your electoral registration form every year. To date around 3,000 households have not returned their form and I am urging all those in Shetland receiving a reminder to return it as soon as possible.
“If your name is not on the register you will not be able to vote at any elections and may also find it difficult to obtain credit or open a bank account.”
For more information contact the electoral registration office on (01595) 745700 or email firstname.lastname@example.org.