It depends. If you are saying you previously used more depreciation than you should have then you could add the difference as part of your income under 'Cash...etc.' Be very deliberate in your recordkeeping, it will be very important at sale.
It's quite uncommon to uses the Form 3115 for the section 481(a) adjustment unless there is depreciation that was not used due to an error. If that is the case you should follow the steps here.
- Be sure to get the total accumulated depreciation prior to 2025, subtract that from the total prior depreciation in your 2024 return, then enter that number on your Schedule E under 'Any Miscellaneous Expenses' then use the description F3115 Section 481(a), then enter the amount. Your depreciation schedule will maintain the information for each asset for future use.
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