Foreign tax credit carryback -- how do I enter this in TurboTax? (It only asks about carryovers)

No, you cannot amend your 2018 tax return by using the TurboTax online edition.  It has to be done on the desktop.  You can amend the 2019 taxes online, but not the past years' taxes.

If you have filed with TurboTax, to amend 2018 tax return, see instructions here: Amend

To see further details on how to amend, select the "Learn More" feature on the "Excess Foreign Tax Credit" screen.  Here are the steps:

In TurboTax online,

• Open up your TurboTax account and select Pick up where you left off
• At the right upper corner, in the search box, type in "foreign tax credit" and Enter
• Select Jump to foreign tax credit
• Follow prompts 
• On-screen Excess Foreign Tax Credit, select Learn More.
• See the images below

I should have clarified that I used TurboTax online for my 2018 return as well. I think the "Amending a Prior Year Return for a Carryback" section is what I was looking for. Side note: the link within that article is broken 😕

Thanks!

I should also note that those instructions don't actually work since it doesn't appear to be possible to add a country named "Carryback" in the foreign tax credit interview. I saw another answer on here suggesting using whiteout, but I think at this point, I'm just going to amend my return myself and not bother with TurboTax since it doesn't appear to actually support this scenario.

Once you have opened up your 2021 return in the amendment process, do the following. 

1. Click on Federal Taxes > Deductions & Credits [In TT Home & Biz:  Personal > Deductions & Credits > I'll choose what I work on].
2. Scroll down to the Estimates and Other Taxes Paid section.
3. Click on the box next to Foreign Taxes.
4. On the Foreign Tax Credit screen, click on the Yes box.
5. Continue through the interview, entering the requested information.
6. You will come to the Carryovers screen.  Click the Yes box.
7. Enter your carryover amounts on the next screen -- Foreign Tax Credit Carryovers. 

Once there, you can use the carryover screen to report as a carryback. When it is complete, the amount it will populate on the 1040X.

@SharmaKarampal9 

Hi @DaveF1006 ,

I was looking for the "carry overs" screen in Deluxe 2023 and couldn't find it.  
I suppose it doesn't exist and need to pay more for Premier ?

No. You should be able to access this in Deluxe.  Here are the steps to get to your carryover screen.

1. Go to federal>deductions and credits>estimate and other taxes paid
2. Foreign taxes >start
3.  Continue through the screens until it asks if you are taking credit or deduction. Say you are taking a credit.
4. Continue until it asks No Other Income or Expenses here you will say no
5. When it asks, for income type, make any selection.
6. Press continue until you reach a screen that says country summary, press done. 
7. Press continue all the way through and you will reach the carryover screen
8. If the screen is blank, you may need to access your prior-year's carryover schedules to record the missing information.