Refund amount increased after submission.

[leeandrebecca]

Long story short, I had to mail in my 2020 returns due to issue with 2019 return still not being processed. At the time I printed and mailed my 2020 return to the IRS, my expected refund was $3567. Now Turbotax shows my expected refund at $4791. Why did my refund amount increase? Also, I just found that my 2020 return is in the process of being processed. When checking "Where's My Refund", it recognizes the $3567 amount and not the $4791 amount. Will the IRS adjust my refund to the higher amount?

[Critter-3 · Accepted solution]

If you had unemployment and/or  the PTC  then the program has been corrected to reflect those changes  and the IRS will be making the same changes to your filed return automatically ... there is nothing you need to do but wait patiently.  Do NOT amend the return.   

[Critter-3]

If you have a copy of the original return then compare it to the new return to see what changed ... save a copy of the new PDF for your records. 

[VolvoGirl]

If you had unemployment,

If you have filed. The IRS will recalculate your return for the new unemployment exemption for you. There is no need for taxpayers to file an amended return unless the calculations make the taxpayer newly eligible for additional federal credits and deductions not already included on the original tax return.
See this new article May 14, 2021
https://www.irs.gov/newsroom/irs-begins-correcting-tax-returns-for-unemployment-compensation-income-...

You may need to amend your state return,
https://ttlc.intuit.com/community/state-taxes/help/do-i-need-to-amend-my-state-return/00/2134732

By the way, you could have efiled your 2020 return by entering 0 for the 2019 AGI since it wasn't processed on time.