If you live in one of the two million households where the census has not yet been filled out you might get a knock on the door this week from the Australian Bureau of Statistics.
In 2011 almost all (96%) Australians completed the national survey, but this year the online participation has dropped significantly, so bureau staff will be visiting homes in areas with low levels of participation.
The drop might be because the site crashed on census night last month, or in response to the #CensusFail movement which spawned because, for the first time, the bureau is storing people's names and addresses for up to four years.
It's too late to hand in a paper form, but you've got until Friday to fill out the census online before you'll be fined $180 per day until it's filled out.
You can find a refresher on what the census is and why you're being asked to do it here.
Both the Coalition and Labor have voted against a bill to prevent you from being fined for non-compliance, so get clicking.