[Unable to file - T4A error msg]

I was able to get some assistance by using the form directly on the Ufile website (https://www.ufile.ca/contact/contact-us). They responded pretty quickly once I used this.

My problem was with Box 28 on the T4A, but see if this works for Box 48 as well.

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If the income from box 028 is not a self-employment income (fees for services), you should choose as description for box 028: (028) Other income.

If the income from box 028 is a self-employment income (fees for services), you should choose as description for box 028 the last description from the drop-down menu: 'Other income included in business income (MEMO)", then you should add the income in a T2125 section, in box "Other income (T4A Box 028)".

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As soon as I changed this drop down menu, it solved my double counting issue and my Netfile issue.

[Unable to file - T4A error msg]

I am having this same problem: The amount in box 028 of the T4A slip must also be reported within the corresponding business as self-employment income. I have reported the income on my T2125, but still get this error.  I have emailed the support team but have not heard back.