Linking ATO online services to myGov
Check your personal details are in the correct format:
- Tax file number (TFN) – 9-digit number, no spaces
- Given name – the first 40 characters
- Family name – the first 40 characters
- One name only – enter your name in the Family name field only.
If you still get an error message, check the following information for support.
Error messages or known issues for linking to ATO online services:
Unable to link – OAS.001 and OAS.002
To link to the ATO, you need to sign in using your Digital ID with the same identity strength you've previously achieved.
What you can do
You’ve previously used your myID to sign in to ATO online services or the ATO app. For security reasons, this automatically sets your online access strength. To maintain your current protection, continue to sign in with your myID.
To re-link to the ATO, you need to sign in to your myGov account using your myID with the same identity strength (or higher) that you previously achieved.
For example, if you used a myID with a Strong identity strength to sign in previously, you need to use your Strong myID to sign in now.
You need to:
- Select Cancel.
- Sign out of myGov.
- Sign in again using your myID (with the same or higher identity strength, either Strong or Standard).
The identity strength of your myID is unique to each device. If you've set up your myID againExternal Link on a new or additional device, check that the identity strength matches the identity strength you previously achieved.
If you're still unable to meet your online access strength or you want to decrease it, you will need to contact us on the Individuals enquiries line.
If you didn't set your online access strength, or you suspect someone has accessed your myGov account and ATO online services without your permission, contact us to report this immediately.
Unable to link – details don't match customer record
This means your details don’t match ATO records, or multiple records were found.
Error codes: IDD.002, IDD.004 or IDD.006.
What you can do
Check you’ve entered these details correctly, including your:
- tax file number (TFN)
- name
- address.
Make sure you are using the same details held on your ATO record.
Find your myGov personal details (name and date of birth):
- Select My account from the myGov homepage
- Select Profile.
These details will only appear if you have a link to either Medicare or Centrelink.
If these details are:
Unable to link – sign-in method not supported
You’re unable to link using your current sign-in method.
Error code: OVK.001
What you can do
- Sign out of your myGov account
- Sign in again using your myID
- Try linking to the ATO again
If you’re still unable to link your account, you will need to contact us.
Details provided do not match ATO records
This occurs when the information you entered doesn’t match what we have on file.
Error codes: NOA.002, TVLDOC.002, MFS.002, TFNAPP.002, SUPERACC.002, PPS.002, ATOPP.002, TAXREF.002, BANKACC.002, INVESTINT.002.
What you can do
Check the information is entered in the correct format.
See more about the information you need to link the ATO to myGov.
All available questions have been skipped
This error occurs when all available questions have been skipped. This counts as a failed attempt.
What you can do
You can try again. Make sure you:
- read each question carefully
- use your documents to check your answers.
See more about the information you need to link the ATO to myGov.
No attempts remaining or try again later
This occurs when you’ve used all your attempts to link your account. It can also happen after multiple failed attempts to confirm your identity.
Error codes: LCK.001, LCK.002, LCK.003, LCK.004 and LCK.005.
What you can do
For security purposes, you won’t be able to try again for a short period of time. You’ll be shown a time and date for when you can try again.
Try again after the lockout has expired.
Unable to sign in to myGov
You may not be able to sign in to your myGov account if you don't have access to security codes.
What you can do
See When you can't sign in to your myGov account.
Cannot find link
This message appears when attempting to navigate from myGov to ATO online services.
This means myGov is unable to find an active link to the ATO.
What you can do
You need to link the ATO to your myGov account before you can access ATO online services.
If you have previously linked your account to the ATO, return to the myGov homepage, and select View and link services to check your ATO link status:
If the ATO is:
- not showing as linked, select Link to begin the linking process
- linked, you need to select Unlink. Once you've received confirmation that the ATO has been unlinked, you should select Link to link again.
Unable to verify, Ineligible to link or call us to complete the linking process
You can't complete the linking process online. Error codes like IDD.003, ICI.001 or OVK.002.
What you can do
If you receive one of these error messages, you will need to contact us.
Session timeout
Your session may time out while you’re linking your account. This can happen if:
- you’ve been inactive for a period of time
- your session has been open for too long.
What you can do
- Select Continue or return to myGov
- Sign in again and restart the linking process.
System errors or unexpected error messages
You may see an error message like:
'An unexpected error has occurred. Try again.'
These errors can occur at different stages of the linking process and are usually temporary system or connection issues.
What you can do
Try the following steps:
- Select Next if available and continue.
- If you can’t continue, return to myGov and start the linking process again.
- If the issue continues
- Sign out of myGov
- Close all browser windows
- Open a new browser
- Go to myGovExternal Link and sign in again.
- Try linking again.
If you continue to receive error messages:
Using ATO online services
Error messages or known issues when using ATO online services:
Sign-in method doesn't meet minimum access requirements
Your sign-in method doesn't meet minimum access requirements.
What you can do
You've previously used your myID to sign in to ATO online services or the ATO app. For security reasons, this automatically set your online access strength. To maintain your current protection, continue to sign in with your myID. To access ATO online services, you need to sign in to your myGov account using your myID with the same identity strength (or higher) that you previously achieved.
For example, if you used a myID with a Strong identity strength to sign in previously, you need to use your Strong myID to sign in now.
The identity strength of your myID is unique to each device. If you've set up your myID againExternal Link on a new or additional device, check that the identity strength matches the identity strength you previously achieved.
If you're still unable to meet your online access strength or you want to decrease it, you will need to contact us.
If you didn't set your online access strength or you suspect someone has accessed your myGov account and ATO online services without your permission, contact us to report this immediately.
Authentication cancelled
The error is 'authentication_cancelled'.
What you can do
Your login has been cancelled when connecting to ATO online services.
To resolve this:
- Return to myGovExternal Link and sign in again.
- Go to Australian Taxation Office from your myGov homepage.
- Complete the steps to link the ATO to your myGov account.
If the problem persists, contact us.
Unable to log in
You're unable to log in.
What you can do
You may be impacted by a data breach where your personal information is stolen by an unauthorised third party. Data breaches can include both physical and digital records.
We apply protective measures to protect your tax records from identity and refund fraud.
If we apply these measures:
- you may not be able to use myGovExternal Link or our online channels
- pre-fill data may not be available.
You will need to contact us.
Error message 001
An error has occurred (001).
What you can do
You can:
If the problem persists, contact us.
Error message 002
Your settings are blocking this page from loading (002).
What you can do
Check your device to see if you have an ad blocker, browser add-on or anti-virus software installed.
You may need to update the settings of this software (check your software provider's instructions) to allow our website to display. For example, by allowing content from the ato.gov.au domain which will enable access to onlineservices.ato.gov.au.
You can generally find icons for ad blockers and other add-ons near the address bar in your browser.
Alternatively, try using another device or browser.
If you have followed these steps and continue to experience this issue, contact us.
A system issue error message is displayed
Examples of the error message include:
- A927.06 – The ATO system has encountered an unexpected error while processing your request
- Proxy error
- Unknown error
- Unexpected system error
- Session terminated
- Session expiry.
What you can do
We recommend waiting one hour before trying again. When you try again:
- Close all browser windows.
- Open a new browser window.
- Go to the myGov website and try again.
If the problem persists, contact us.
Using myTax
No 2025–26 tax return or prepare link
You're unable to see a 2025–26 tax return or 'Prepare' link in the 'For action' box.
What you can do
If you can’t see your return online, or there’s no ‘prepare’ link, that doesn’t mean you don’t have to lodge. It may be because you’ve previously told us your last lodged return would be your final tax return.
We understand accidents happen and circumstances change. If you do need to lodge, contact us.
Using the ATO app
Error messages or known issues when using the ATO app:
Sign-in method doesn't meet minimum access requirements
Your sign-in method doesn't meet minimum access requirements.
What you can do
You've previously used your myID to sign in to ATO online services or the ATO app. For security reasons, this automatically set your online access strength. This means you must always use your myID to link to or access ATO online services.
To access ATO online services, including via the ATO app, you need to sign in to your myGov account using your myID with the same identity strength (or higher) that you previously achieved.
For example, if you used a myID with a Strong identity strength to sign in previously, you need to use your Strong myID to sign in now.
The identity strength of your myID is unique to each device. If you've set up your myID againExternal Link on a new or additional device, check that the identity strength matches the identity strength you previously achieved.
If you're still unable to meet your online access strength you will need to contact us.
If you didn't set your online access strength or you suspect someone has accessed your myGov account and ATO online services without your permission, contact us to report this immediately.
Unable to view latest information
You're unable to view the latest information such as financial year or unable to access a feature within the app.
What you can do
- Backup any myDeductions records (if applicable) before updating.
- Update to the latest version of the ATO app.
- Close the app, connect to the internet and open the app again.
Sign-in error – iOS or 16.7 operating system
Your device's operating system is iOS or iPadOS 16.7 and an error occurs when you sign in (APP025).
What you can do
- Close the app.
- Update your device's operating system to at least 16.7.11 or later.
- Open the app and sign in again.
System error message
System error message examples may include:
- an error has occurred
- error during set-up
- an error code
- any other error.
What you can do
Ensure you have the latest version of the app installed.
Check for any system maintenance.
If the error message:
- doesn't specify a timeframe – try again
- specifies a timeframe – wait for that time to elapse and then try again.
If you continue to receive the same error message, you can contact us to report the issue. Take note and tell us the error code you receive.
Unable to upload your records – myDeductions
In myDeductions, you're ‘Unable to upload your records.’
This might happen when you are attempting to upload myDeductions records to the ATO.
What you can do
- Check for any system maintenance.
- Check your device is connected to the internet.
- Ensure you have the latest version of the app – back up your myDeductions records before updating the app.
- Try again later.
If you continue to receive this error message, you can contact us to report the issue.
Error trip recording on OPPO devices – myDeductions
OPPO devices include a setting which prevents apps from running in the background. If you go out of the app or your device goes into standby mode while recording a GPS trip, this setting can cause the ATO app to stop tracking your trip.
What you can do
To resolve this issue, on your device, select:
- Settings
- Battery
- Energy saver
- ATO app
- Turn off Background freeze.
These steps may vary slightly depending on the device you have.
Private space – Android
There is an error or issue relating to Android – Private Space.
What you can do
If you lock the ATO app in a Private Space on your Android device, it can't run in the background or receive notifications. This means some functionality will be limited, for example, you:
- can't use GPS trip tracking in myDeductions
- won't receive myDeductions backup reminders.
If you want to use this functionality, you will need to either:
- unlock the Private Space, noting that as soon as it locks, functionality will be limited again
- remove the ATO app from your Private Space.
If you have myDeductions data, you will need to back up your data.
The ATO app will need to be reinstalled outside of the Private Space and quick login set up again.
Registered your device using the ATO app
You registered your device using the ATO app and have a replacement device or no longer wish to use the ATO app.
What you can do
Don’t delete or uninstall the ATO app from your registered device, as this won’t remove the device from your ATO account.
If you have a new device, download the ATO app on your replacement device and register it before removing your previously registered device in the ATO app.
If you don't have a new device yet, you can remove your registered device in the ATO app to make sure you can set up the ATO app on a new device without contacting us.
No access to a registered device
You no longer have access to the ATO app on your registered device or are unable to register the ATO app on a new device because you didn't receive the verification code to register a new device.
What you can do
If you have access to the ATO app on your other registered device, open the ATO app to receive the verification code to register your new device.
If you don’t have access to your other registered device, or have uninstalled the ATO app without removing your registered device in the ATO app, you will need to contact us for support.
Using myID to apply for a TFN
The error message for known issues when using myID to apply for a TFN – 'Error has occurred'.
Error has occurred
Error shows ‘An error has occurred. We are currently experiencing technical difficulties. We apologise for any inconvenience. Try again later.’
Some users are receiving this error message after submitting their online TFN application form.
What you can do
We’re currently investigating this issue.
If the issue persists, consider using an alternative method to apply for a TFN.