The ONS can also send census branded reminder letters by post to those who have not completed their census.
But if someone receives a reminder letter and they have already submitted their form, they can ignore the correspondence.
While a £1,000 fine is put on the table as a consequence of not completing the Census, Britons should not worry at this point in time.
Action Fraud has confirmed any letters, texts, phone calls or emails currently trying to take payment for late or incorrect submission are not genuine.
The cybercrime reporting service added: “For a fine to be imposed, your case must go to court for non-completion of the Census. Any fines issued for those refusing to complete their census will be done via the courts.
“You will never be issued with a fine by text message, phone call or email.”