Information on SMSs and emails the ATO send out:
https://www.ato.gov.au/general/online-services/online-security/current-ato-sms-and-email-activities/

I.e. Seems legit.

I had a sms from 0421 264 063 with the same as above. But checked the link and it takes you to the ATO website. Figured it was a scam cause I had already lodged mine.

It may be from the ATO but I doubt it because the ATO says they don't usually email or phone blind. Anyway, you got the message that you can lodge online so leave it at that and use the proper program on your PC to do it.

Its from the ATO.. dont think its a scam tho

Is it real or a scam

I got one advising to use e-tax with a genuine link. If it isn't legit, the scammer has failed hard.

Comes up as a text from ATO - Is it real of a fake?