After you file

TurboTax refund is based on several things.  The three primary ones are:

1. Total Income
   1. You are taxed on total income, not on each individual income source.
   2. The combined income will be taxed higher than any individual source.
   3. Be sure to confirm that you have accounted for every income source.
2. Withholdings
   1. Each income source may have their own withholding,
   2. If you didn’t tell your employer that you had other income, you may not have had sufficient withholdings.
   3. Be sure that all withholding amounts have been properly accounted for.
3. Deductions and Credits
   1. If you Itemized, did you take the same deductions.
   2. There are several Credits that have changed as @xmasbaby0 stated above.  did you have any of those credits.

You can view your tax return by following these steps.  It would be best if you have a copy of last years tax return.

To view your 1040 form on a Mobile device.

1. Select Tools.
2. Next, select View Tax Summary in the pop-up, then.
3. Preview my 1040