Should I amend my taxes? ?

You are reading something wrong.  You do not pay back your stimulus checks.  Try again.

The $1800 may be a coincidence.  Did you receive unemployment that you didn't have taxes withheld on? Of course that's changed too.  Generally when you get a wrong answer in Turbo, it's because you answered a question wrong, checked a box you should/shouldn't have, etc.  You should not have submitted a return that you suspected was incorrect.  It will delay your refund while the IRS tries to figure out your error.

Yes you should file an amended tax return if you filed an incorrect tax return.

If you filed a correct tax return and your balance due is $1800, I'm not sure what you're waiting out.   You're free to refuse to pay, but the consequences are on you.

We don't know what your taxable income (was without the stimulus checks).

Since the stimulus checks are not taxable

https://www.cnbc.com/select/will-stimulus-check-be...

https://www.fool.com/taxes/are-stimulus-checks-tax...

https://www.nytimes.com/2021/02/11/your-money/stim...

We need to know what taxable income you had and what withholding you selected on your W2.

There might be an impact on state taxes due to the stimulus payment, but that is indirect and not an IRS issue but a State issue - and we don't know where you live.

I paid $60k in taxes last year, including $200 when I filed taxes. I don't mind paying taxes, but try not to provide an interest free-loan to the government (by overpaying) resulting in a refund due me from Federal or State treasuries...

So.....you lied about receiving the 2 stimulus payments when you originally filed your tax return and, now, the refund is taking forever?

The good news is that the IRS should be able to figure this out on its own without you amending.

The bad news is that you are going to be waiting a while for your refund.

i don't think the stimulus checks have anything to do with why you owe 1800