You can do this by following these steps.
- Select Start Now.
- Accept the Express Plus Terms and Conditions.
- Enter your myGov sign in details.
- Enter the security code or answer your secret question.
- If you already have a myGov PIN, select Continue.
- If you don’t have a myGov PIN, create one.
After that, you can sign in to the app with your 4 digit myGov PIN.