Troubleshooting

@elalizada The Year Over Year Comparison can be found in TurboTax Online by going to "Tax Home" on the left-hand side menu and selecting Review then Year Over Year Comparison. The year-over-year comparison only shows the current tax year and the previous tax year.
Also be aware that the year-over-year comparison is only available if you transferred your previous year's return into your current year's return.