Yes, you need to use the account in which you filed the original return in order to amend it.
In other words, if you realize you have 2021 income you didn't include on your 2021 tax return, you need to use your 2021 TurboTax software, or the same online account in which you did your original 2021 tax return, in order to amend it.
Each tax year is separate and the software is slightly different because the law changes every year, at least a little.
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