If TurboTax is showing your Net Income on Line 23600 of the tax return as the same amount on Line 15000 - Total Income, this is perfectly normal, (especially if you do not have any deductions such as Union Dues, Registered Pension Plan, etc being claimed).
The amount shown in Box 14 of your T4 is your Gross or Total Earnings from that source of employment. Although your Net Pay on your paycheque is lower than this amount, on the tax return the deductions used to arrive at Net Pay are not entered until after this Line 23600 of the tax return.
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I found out near the end of the return process (in the Review section) that TurboTax entered a GST Rebate from my 2021 return in Line 10400 of the tax forms. I found this by selecting the line for help and (as suggested): - Using the Find feature on TurboTax - searching "Income not reported on a t-slip" - Select "Income not reported on a t-slip" from the list, and selecting Go. This led to a list of items under Employment Status. The pertinent item was: "Claimed a GST rebate in tax year 2021. Do not confuse this with the GST credit. You must include the rebate amount as income in tax year 2022." This led to the GST I had claimed for professional dues payment in 2021. The GST amount equals the discrepancy in earnings I found. The CRA's definition of this as Other employment income isn't the best, but TurboTax could help by spelling it out as a separate line item earlier in the process.