Can I see how much would I get back before I start paying

[DoninGA]

Look at your Form 1040 -

On the Form 1040, Line 35a shows the federal tax refund, if any.

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.