You are only eligible to apply for an ETA while you are outside of Australia. To apply through this site, you must also hold one of the listed ETA-eligible passports. If you do not meet these criteria, then you should contact your nearest Australian visa office for further options.

ETA-eligible passports:

Andorra Austria Belgium Brunei Canada Denmark Finland France Germany Greece Hong Kong SAR

Iceland Ireland Italy Japan Liechtenstein Luxembourg Malaysia Malta Monaco Netherlands Norway

Portugal San Marino Singapore South Korea Spain Sweden Switzerland United Kingdom United States Of America Vatican City

Holders of UK British National (Overseas) (GBN) passports are not eligible to apply for ETAs through this site.