The answer to your questions follow:
- TY2023: Yes, you are amending to correct the depreciation calculations and business use percentage error.
- TY2024: Yes, you need to update the amended 2024 with the new 2023 depreciation numbers. Write down the total 'prior depreciation and the current amount from the 2023 tax return in the rental asset(s). When you are in the asset section of the rental in 2024, then correct the prior depreciation if it does not match the figures you wrote down.
If there is no e-file option for the amendments in the TurboTax Desktop then it must be mailed, at least for 2023. If you don't have an e-file option for 2024, then you would mail that one as well. Do not put the 2023 and the 2024 in the same envelope. Believe it or not, it's too much for the IRS to handle.
@FortuneCookies
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