Known Error Codes
Error: CMN.ATO.GEN.500126 - Individual or Non-individual details must be provided. CMN.ATO.GEN.500126 - Invalid context. The number of Intermediary. Tru...
Fri, 14 Feb, 2025 at 9:33 AM
Error: CMN.ATO.IITR.310003 Answer: You have set ITR Type to “Short”. This means only dividends are allowed in the form, but there are other data. You sh...
Wed, 8 Dec, 2021 at 8:13 AM
Error: CMN.ATO.CTR.428313 - Net foreign income and/or attributed foreign income amounts must be present. There is an amount at the "foreign income tax ...
Wed, 21 Jan, 2026 at 9:14 AM
Error: "A potentially dangerous request." Answer: The issue occurs because of installed browser extension (plugin) 3CX phone. It automatically mo...
Mon, 20 Dec, 2021 at 7:34 AM
Error: Solution: According to ATO troubleshooting article https://www.ato.gov.au/general/online-services/technical-support/troubleshooting-for-businesses-...
Mon, 20 Dec, 2021 at 7:46 AM
Prompt: CMN.ATO.GEN.EM0019 Amendment was rejected because the original return was lodged using a different financial year form. What this means: The ATO...
Wed, 21 Jan, 2026 at 8:59 AM
Error: Solution: Please fix client's reference. Need to navigate to client's setting via provided link "Tax Payer Contact Details Settings&q...
Wed, 16 Feb, 2022 at 8:06 AM
Error: Lodgement is missing on ATO Solution: Press "Refresh Status" button to update the form Please check the portal if this form has be...
Thu, 10 Aug, 2023 at 1:06 PM
Error: "We could not process your request due to malformed syntax", when trying to delete a form Answer: Regarding the issue of forms delete...
Wed, 21 Jan, 2026 at 9:41 AM
Error: CMN.ATO.IITR.730411 - Early stage investor - Current year tax offset amount must be provided. Solution: Try to activate “Offsets” section.
Wed, 21 Jan, 2026 at 1:57 PM