Maryland Income Tax - Decoupling From Amendments to the Internal Revenue Code - Depreciation and Business Interest Expenses

HB 880 modifies Maryland's income tax code to decouple from recent federal changes affecting depreciation deductions and business interest expenses. It directly affects Maryland taxpayers (individuals and businesses) who claim these deductions by requiring them to use pre-2003 depreciation rules and pre-July 2025 interest deduction rules instead of current federal allowances. Key provisions include excluding certain federal adjustments to §179 depreciation limits, applying older rules to heavy-duty SUVs, and exempting manufacturing entities from these changes if property was placed in service after 2018. The bill takes effect for taxable years beginning after December 31, 2025, ensuring Maryland tax calculations differ from federal updates on these specific deductions.