I'm ammending last year's return to update spouse's ITIN since they applied for one when filing taxes last year. Turbotax says we now owe a balance. Why is that?

Hi besito89, thank you for posting the question.

$1,400 increase in amendment balance due seems to be an disallowed 2021 Recovery Rebate Credit.

Please refer to below link Q C4 and Q C5 that in general, a valid Social Security Number is required to claim Recovery Rebate Credit (not ITIN.)

https://www.irs.gov/newsroom/2021-recovery-rebate-credit-topic-c-eligibility-for-claiming-a-recovery-rebate-credit-on-a-2021-tax-return 

Please contact us for live help if needed.

How do I contact TurboTax?

https://ttlc.intuit.com/turbotax-support/en-us/help-article/account-management/contact-turbotax/L2y9ZKpQB_US_en_US

Hope the above helps.

Thank you,

Kitty

@besito89 can you please provide a little more detail? 

sounds like you are amending 2021 tax return.  Why do you think you have to amend? 

On the original return, did you use an ITIN for your spouse? if that return was completed properly, she was not elgibile for the $1400 recovery rebate credit as it required a social security number.  What was on Line 30 of form 1040?  Was your wife listed on the original tax return and what was your filing status? 

What was the refund you were expecting and what did you receive? if the difference is $1400, then that is correct and amending won't change that. 

Did the IRS approve the original tax return? are they asking you to amend?