Bloomberg just handed tax professionals a head start on 2027 planning, projecting a 3.2% inflation bump that pushes brackets, deductions and AMT thresholds higher across the board. For joint filers, the top of the 24% bracket climbs from $403,550 to $416,650, while the standard deduction rises to $33,200 from $31,500. Single filers see similar bumps, with the 22% bracket ceiling moving to $109,125 from $105,700. AMT exemptions get a lift too, up to $144,700 for joint filers. The wrinkle this year: Bloomberg had to calculate everything using an 11 month inflation average since the Bureau of Labor Statistics never reported October 2025 data, adding a layer of estimation uncertainty on top of the usual guesswork. The projections also fold in One Big Beautiful Bill Act adjustments, including changes to information reporting thresholds and the employer child care credit.

Finsum: The direction is clear enough, higher brackets and deductions, that clients doing multi year tax planning now have a real head start.