Don't quite understand what you meant by "Can I take the numbers from what my personal accountant did in 2023 and plug into TurboTax with this additional income? "
Based on what little I know about the situation, I believe all you need to prepare the final 2023 Form 1041 is the $2,900 1099 form and the fees that the estate paid the accountant and lawyer in 2023. None of the amounts on your person 1040 is needed for the 1041.
If the estate has any taxable income after deducting the professional fees and the $600 exemption, TT Business will produce a Schedule K-1 for each of the beneficiaries, listing their pro-rata taxable income. This Schedule K-1 will be needed by your personal tax preparer to amend your 2023 Form 1040. Nothing else. Hope this is clear.
