Michigan Tax Brackets 2025. Posting of the sales, use, and withholding forms for tax year 2025 is expected at the end of december. Michigan reduced its flat individual income tax rate to 4.05 percent for tax year 2023.
Individuals and fiduciaries subject to tax under part 1 of the income. In 2025, the income limits for all tax brackets and all filers will be adjusted for inflation and will be as follows (table 1).