The bill tightens tax treatment of excess single-family residences to reduce perceived tax preferences and raise revenue while giving taxpayers time to plan, but it raises taxes and cash-flow pressures for affected owners and increases compliance burdens for taxpayers and the IRS.
Homeowners holding excess single-family residences face clearer tax rules that discourage speculative holding and may increase housing turnover.
Taxpayers gain timing clarity because the rules apply to taxable years beginning after enactment, giving individuals time to plan transactions and tax positions.
Homeowners who are not subject to the new chapter retain mortgage interest and depreciation tax benefits, preserving tax advantages for the majority not targeted by the rule.
Homeowners required to sell who fail to meet the sale requirement can incur a new excise tax liability, increasing their federal tax bills.
Homeowners made liable under chapter 50B lose mortgage interest and depreciation deductions, raising taxable income and potentially substantially increasing tax bills for affected owners (including rental/business uses).
Taxpayers who lose these deductions may face cash-flow strains because deductions previously used to reduce current tax are no longer available—this is especially acute for middle-income homeowners carrying mortgage interest or rental property expenses.
Based on analysis of 3 sections of legislative text.
Imposes an excise tax on certain owners of excess single-family homes and denies mortgage interest and depreciation deductions for those owners.
Introduced February 27, 2025 by Jeff Merkley · Last progress February 27, 2025
Creates a new tax on owners who hold “excess” single-family homes and removes two common tax benefits for those same owners: the mortgage interest deduction for acquisition indebtedness and depreciation deductions for single-family residences. The tax and the new limits on deductions apply for taxable years beginning after the bill becomes law and use statutory ownership and definition rules tied to a newly created tax chapter.