If you purchased stock options from your employer between February 27, 2000 up to and including March 4, 2010 and you chose to defer the benefits of these security options, you’ll have to complete the T1212 form.

A security option benefit results when you buy securities through your employer at a price which is less than the fair market value (FMV) of the securities. In this case, you’ll have a taxable benefit received through your employment, which can be reduced by the amount you paid to acquire the option rights.

If you disposed of securities in 2024 and can’t defer your security benefits any longer, you will also need to complete the Schedule 3 form (and Schedule G, if you’re a resident of Québec) to report your capital gain or loss.

We invite you to consult this link from CRA under Security options benefits section for more details.

Thank you for choosing TurboTax.

This doesn't respond to my issue at all.

Thsi issue is not solved. The CRA are still working on a fix.

I eventually managed to get netfile to accept my return after the previous error. Return accepted today APRIL 28TH. I entered a non-existent T4 with an amount of $1.00 in the employment income field. This generated an entry via Schedule8 in Line 50340. CRA representative half found the solution to this spoof after spotting that Turbo Tax had added a figure of $0.01 in line 503400 in previous years returns but not 2024. I couldn't just enter $0.01 in line 503400 but a T4 entry of $1.00 was enough to allow the acceptance of the return.

TURBO TAX AND THE CRA NEED TO WORK TOGETHER TO CLEAR UP THIS ISSUE BEFORE NEXT YEAR.

@CanuckOO Thank you for the update and the comments. We appreciate it. Glad to hear that you were able to Netfile.