You must complete the census - it is a law. After Census Day has passed, census field officers will visit households where a completed census form has not been submitted. These officers will encourage people to complete the form. The field officers will not enter people’s homes and will wear personal protective equipment (PPE). Census 2021: This year's survey will be a digital-first census (Image: GETTY) Will you be fined if you fail to complete the form? Failure to complete the census or providing false information could lead to a fine of up to £1,000. Some questions are clearly labelled as voluntary and therefore it is not an offence if you do not answer these.