How to amend (change or correct) a return you already filed
You can amend e-filed returns if they've been accepted; paper-filed returns may be amended once they've been mailed.
Select your tax year for amending instructions:
what prompts you to want to remove him?
are you doing that to get the stimulus for him ?????? that is not the right approach if so
if your son CAN BE claimed, even he was not claimed, he is still not eligible for the stimulus.
you will be doing alot of work for nothing.... there is an easier approach!
First, CAN you claim your son as a dependent in 2020? Whether you do or not is immaterial. You always have the option to claim him, but whether you do or not, your son has to answer on his tax return if someone CAN claim him and if someone CAN claim him, he is not eligible for the stimulus.
(and for 2019 if you now want to remove your son as a dependent because he was truly not a dependent in 2019, that is the right thing to do but be prepared for the 1040X to say you owe the IRS $500.)
The way the stimulus REALLY works is EVERYTHING is based on your (or your son's in his case) 2020 income, filing status and number of children under the age of 17. What these numbers were in 2018 and 2019 does not matter and that is why filing an amendment for 2019 for the sole purpose of obtaining the stimulus is nto the way to correct this!
The IRS will calculate your stimulus based on 2020 numbers; that is what is considered the ACTUAL.
The two payments were just ESTIMATES
if the ACTUAL is greater than the ESTIMATE, you will receive that amount as a credit on your 2020 tax return.
if the ESTIMATE is greater than the ACTUAL, you are not required to return the money nor does it impact your refund. Line 30 on Form 1040 will be zero.
so if your son is truly not a dependent of yours in 2020, all he has to do is complete his 2020 tax return and whatever money he is due for stimulus will appear on Line 30 as a tax credit, increasing his refund (or reducing what he owes). His ESTIMATE is zero (no payments) and his ACTUAL is presumably $1800.
Does that help?