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AutoFill failing - Ufile displays "error code -3"


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When using AutoFill I am getting a popup "Secure.ufile.ca Says: -3"

Repro Steps:
with Chrome Browser:
1.  Under CRA Auto-fill my return:  Go to Download my information

2. Click Download and complete all CRA login info including two-factor authentication

3. Observe CRA message "The System is processing your request.  This may take several minutes..." (see attachment)

4. The message resolves and Ufile pop-up:  "Secure.ufile.ca says -3" will appear (see attachment)

5. no data is sucessfully donwloaded


Ufile Message (French).png

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  • 2 weeks later...
6 hours ago, BrandonRamakko said:

I'm getting the same error message. I tried using edge and chrome and neither made a difference.

Still getting it on my end. I wrote the support team two weeks ago and haven't had a reply yet. 


If this isn't resolved I will likely ask for a refund. I downloaded TurboTax (free version) and have successfully imported my information so I feel that the problem is not on the CRA side but rather Ufile is unable to successfully make this transaction work.


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  • 1 year later...

I've got the same error than you guys, I've asked for support to their Ufile helpdesk in sending via their website. I've got a rather surprising answer (attached below) the next day advising me the use Internet Explorer 11. Surprising due to the fact Microsoft discontinued support to this browser last year (June 2022). Instead I've tried the IE compatibility feature of Microsoft Edge but no luck I still get that "Secure.ufile.ca says -3".
IE not available on Windows 11, on Win 10 and below we might still have access to IE 11 but I question the use of an discontinued web browser for sensitive information as our taxes stuff..

Here their reply:

  • "Hello,
    Thank you for contacting UFile support.
    The "Auto-fill my return" service requires Internet Explorer 11.
    Internet Explorer 11 is a built-in feature of Windows 10, so there is nothing you need to install. To open Internet Explorer, select "Start" , and enter "Internet Explorer" in Search . Select "Internet Explorer (Desktop app)" from the results. If you cannot find Internet Explorer on your device, you will need to add it as a feature. Select "Start"-> "Search", and enter "Windows features". Select "Turn Windows features on" or "off" from the results and make sure the box next to Internet Explorer 11 is selected. Select OK, and restart your device.
    NOTE: Internet Explorer can be also found if you click on "Settings" menu of Edge.

    *** If your operating system is Windows 7, 8 or 8.1: If you do not have Internet Explorer 11, you can download the latest version of it from the link:

    Please set Internet Explorer 11 as your default web browser for the period when you want to download the information from the CRA.
    Here's how to make Internet Explorer your default browser: Open Internet Explorer select the Tools button, and then choose Internet options. Select the Programs tab, and then choose Make default. Select OK, and then close Internet Explorer.
    Please ensure that the following conditions are met prior to using this service:
    - You must be registered for My Account to download your own tax data. If you are preparing a tax return for someone else, you will need to become authorized to use Auto-fill my return on their behalf. See the section, "Preparing a tax return for a family member or friend", - The time must be set correctly on your computer. The CRA has a time limit for completing the transaction. A discrepancy of more than five minutes between the time on your computer and the correct time is enough for the CRA to invalidate the transaction. - The time zone must also be set correctly on your computer. - You must close all instances of Internet Explorer that you have running before attempting to download.
    Please follow the instructions below:
    1. Start Internet Explorer and click on "Tools" menu
    . 2. Click on "Content" tab.
    3. On that window, click on "Clear SSL state" button.
    4. Then go to "Advanced" tab on same page.
    5. Click on "Reset".
    6. Then click on "Reset" again, then press "Apply".
    If you still have difficulties to use the "Auto-fill my return "service, please follow the instruction below:
    1. Open Windows Explorer (Windows Key + E)
    2. 2. In the address bar, type "%localappdata%\Thomson_Reuters_DT_Tax_an".
    3. 3. Press ENTER. 4. Delete all"impotexpert.exe_* " and "ufile.exe_* folders found in "%localappdata%\Thomson_Reuters_DT_Tax_an" folder. 5. Start UFile 2020. 6. Try again to use the Auto-Fill service."

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Hello samyjee,

UFile Windows - Auto-Fill Return (AFR) :
We have updated UFile 2018 to UFile 2020 (and was always included in 2021 and 2022) to use Microsoft EDGE which uses Edge WebView. (we no longer use Microsoft Internet Explorer 11).  Note that this also applies to the AFR for 2021 and 2022.
If you are receiving error messages, for AFR, relating to Internet Explorer (IE11) you should uninstall and reinstall your current versions of UFile 2018 to UFile 2020.
Download the latest versions here :
>>Previous Versions: 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011.   
Click on the year for the installation file required.

You should also verify if Edge WebView  has been installed :
C:\Program Files (x86)\UFile 2020\DTWebViewApp\bin\Release


If it is not installed then go here to download the installation:
Edge WebView installation from the official Microsoft website to download the installation file “MicrosoftEdgeWebview2Setup.exe”


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