So, my federal + state tax returns are both accepted (through TurboTax), I owe tax and I have my checking account withdrawn date set in the future (so I haven't actually paid yet).
Now I got the corrected 1099 so I amended the tax and e-filed it, the result is I still owe tax but TurboTax asked me to mail in 1040-V, should I still do this? The amount on it seems to be the "original tax owed" - "extra refund".
I am confused if I should still mail in because it seems like 1040-V needs to mail in with a check (which is not needed for my case since I already set up a withdrawn date).
Since requested to have your federal taxes owed debited from your checking account, the Form 1040-V is not needed so can be discarded.
On your amended tax return if you have taxes owed you include a check for the taxes owed with the mailed amended return. Or if you are e-filing the amended return you can use the IRS payment website to pay the taxes owed on the amended return - https://www.irs.gov/payments
Note - The Form 1040-V was only for the original tax return that was filed.