Ahead of Census Day the Office for National Statistics (ONS) will send you a letter in the post with an access code and instructions to complete the census form online. Everyone should have the support they need to fill in the census. If you, or anyone you know, needs help, there’s a wide range of support services available. From 1 March there will be a dedicated contact centre where census staff will be on hand to give help over the phone, in a web chat or on social media. This contact centre can give you help over the phone and guidance in a range of languages and accessible formats, including paper questionnaires and large print.