For your 2024 NOL carryover issue in ProConnect: Post-2018 NOLs are limited to 80% of taxable income, and pre-2018 NOLs can still offset 100% of taxable income. In your scenario, after applying the pre-2018 NOL, your positive AGI—adjusted by itemized deductions exceeding AGI—doesn’t automatically generate a current-year NOL in ProConnect. The software treats excess itemized deductions over AGI as non-business-related, so they aren’t reflected as a current-year NOL.

To accurately track this, many tax preparers maintain a manual worksheet for the excess deductions that could generate a current-year NOL. There isn’t a direct trigger in the General Info schedule to force ProConnect to recognize it automatically. [Content Remove] often advises reconciling ProConnect calculations with a separate NOL tracking sheet to ensure your pre- and post-2018 carryovers are applied correctly.