By Editor , 17 September 2026 Bloomberg Tax Projects 3.2% Inflation Rise for 2027 Tax Brackets Arlington, Va. – September 16, 2026 -- Bloomberg Tax & Accounting has projected a 3.2% inflation increase for 2027, up from the 2.7% rise recorded for 2026, according to its newly released 2027 Projected U.S. Tax Rates report.