The Michigan Department of Treasury has been made aware that some "Reminder of Tax Due" letters sent to taxpayers contain an incorrect toll-free (1-800) TTY number, which may connect callers to a potential scam. Taxpayers with questions regarding unpaid individual income taxes are asked to contact the Treasury directly at 517-636-4486. We apologize for any confusion or concern this may have caused.
Inflation Rate Multipliers
- 2025-14 - Inflation Rate Multiplier for 2026
- 2024-14 - Inflation Rate Multiplier for 2025
- 2023-16 - Inflation Rate Multiplier for 2024
- 2022-17 - Inflation Rate Multiplier for 2023
- 2021-15 - Inflation Rate Multiplier for 2022
- 2020-16 - Inflation Rate Multiplier for 2021
- 2019-15 - Inflation Rate Multiplier for 2020
- 2018-15 - Inflation Rate Multiplier for 2019
- 2017-16 - Inflation Rate Multiplier for 2018