National Change of Address

What is NCOA?

We match your data against Australia Post’s Movers data which contains people who have lodged a Mail Redirection service application form, where the data is contained in the NCOA database.

The NCOA database contains all the individuals and households that lodged a Mail Redirection form, and from this data we are agents providing access to the various types of data released as permitted by Privacy Laws in Australia.


By matching your data against the NCOA database (derived from Australia Post's National Mail Redirection service), we can find new addresses of your customers who have moved and given us permission to pass on their new address details.
We can match your data against the NCOA database which contains people who have lodged a Mail Redirection service application and not given us permission to pass on their new address details. So rather than receiving the new address details, you will receive a flag suggesting not to mail that record.
The NCOA Deceased File is made up of people identified as being deceased on a Mail Redirection service application form. We will match your records against this file and flag the records belonging to people who have passed away.
Australia Post can contact people that have lodged a mail redirection form but have not given consent for the release of any new address information (NCOA non consent). Letters are sent on behalf of a client by Australia Post requesting that the client be informed of their new address details. Approximately half of the recipients of a ReConnect request letter decide to allow the client to have their new address details.

Online Portal Service

Upload a file containing names and addresses directly to the Datawash portal website. We process the file automatically and produce statistical reports and a quotation. Pick and choose which results you want to download, and a zip file of the outputs will be available for download on the web portal.

Lodge a file now to get a free “no obligation” report sent to your registered email address.

Output is produced ready for your mailing house, and in separate formats for easy integration into your database system. Custom output formats are available upon request.