You can view your Form 1040 plus Schedules 1, 2 and 3 at any time using the online editions. Click on Tax Tools on the left side of the online program screen. Click on Tools. Click on View Tax Summary. Click on Preview my 1040 on the left side of the screen.
You must be working on the 2025 tax return and are accessing one of the sections, Wage & Income, Deductions & Credits, etc. for the links on the left side of the online program screen to be available.