With less than a week to go before Census night, the Australian Bureau of Statistics says people can complete their forms as soon as they receive their instructions.
Andrew Henderson, Census Executive Director said this made it easier for people to fill in their Census when it best suits them.
"Households across the country have started receiving Census letters with instructions on how to complete their Census online, or how to order a paper form," Mr Henderson said.
"In some areas, households will receive a paper form and we'll supply a reply-paid envelope for its return.
"If you are yet to receive your Census instructions, or would like to complete a separate Census form to the rest of your household, you can get a Census number or request a paper form on the Census website."
Mr Henderson said there was a range of help and support options to assist people in completing the form, including on the Census website and over the phone.
We also have braille forms, audio instructions, video guides with closed captions, and translation services available," he said.
"Census data is a snapshot of who we are and how we are changing. It's used to inform important decisions about social and economic services for individuals, families and communities."
If you won't be home on Census night - which is on Tuesday, August 10 - it's important that you visit the Census website to report that the home will be vacant. You need to indicate whether the residents are staying elsewhere or travelling.