The Australian Taxation Office (ATO) by design requires that all tax returns be signed by only one person. This is typically the taxpayer or an authorized tax agent acting on behalf of the taxpayer. The tax return declaration and signing process is structured so that a single signature serves as the formal attestation that the information provided is true and correct.

The signature requirements mandate that the taxpayer or their agent sign the return, and this signature stands as the official declaration. The ATO accepts electronic signatures for electronic lodgements and handwritten signatures for paper returns. This single signature requirement ensures the legal validity and clarity of the tax return lodgement process. 

ATO link here


Related informations:

Learn more on how to add or update Tax Form Signatory 

If you are preparing a Company Tax Form, please refer here

If you are preparing for an Individual Tax Form, please ensure that the client has the email address in the client Settings (client selected per below image is "Doe, Chris") under Primary Email in the Contact Details section.


We also have E-signature templates which you can input placeholders. Here is the related guide: E-signature Template