Basingstoke and Deane Borough Council is contacting households across the borough as part of its annual electoral registration canvass, checking that the names and addresses of residents are correct.
Some residents may also be asked to renew their postal vote.
Households where the council holds an email address, and whose details match records held by the Department for Work and Pensions, will receive an email next week from electoral.services@basingstoke.gov.uk asking them to confirm or update their information.
Paper forms will be sent later this month to households where the council does not hold an email address, where information does not match Department for Work and Pensions records, or where a property is believed to be empty.
Residents are being encouraged to follow the instructions in their email or letter and respond as soon as possible.
Being on the electoral register is a legal requirement for those eligible to vote, and residents must be registered if they want to take part in elections.
This year's canvass is particularly important as it will help ensure residents are able to vote in the May 2027 elections, when councillors will be elected to help establish the new North Hampshire unitary council.
The new council is being created as part of the Government's plans to reorganise local government across Hampshire and the Solent.
From May 2027 until the end of March 2028, the new authority will operate as a shadow council while preparations are made for it to take over responsibility for local government services across north Hampshire from 1 April 2028.
Until then, services in the borough will continue to be delivered by Basingstoke and Deane Borough Council and Hampshire County Council.
Residents are being asked to respond promptly to the annual canvass to avoid the need for reminders.
From mid-October, council representatives known as canvassers will begin visiting properties where residents have been contacted but have not responded. Canvassers will carry official borough council identification and will be able to help residents update their details.
Basingstoke and Deane Borough Council's Electoral Registration Officer, Fiona Thomsen, said residents should make sure they follow the instructions they receive and check whether their details are correct.
The electoral register is not only used for elections. It can also be used by credit reference agencies to check names and addresses, for jury service selection, and as part of identity checks to help detect fraud and money laundering.
More information about electoral registration and voting is available on the Basingstoke and Deane Borough Council website.