Michigan prejudgment interest rate
United States Michigan complaint-to-judgment interest under the Treasury-based statutory formula.
→ All Michigan judgment & prejudgment interest rates
Published value Formula rate
2026 Michigan prejudgment interest at a glance
- Current rate
- 4.959% per year
- Effective date
- July 1, 2026
- Controlling authority
- MCL 600.6013
- Rate basis
- Published value
- Source checked
- August 21, 2026
- Recorded history
- 80 data points
Michigan uses MCL 600.6013 for the complaint-to-judgment portion as well as post-judgment interest. The general subsection (8) reference is currently 4.959%: the official five-year Treasury benchmark plus one point, compounded annually. The statute applies calculation intervals from complaint filing; the January and July dates are certificate dates, not a complete payoff schedule.
When Michigan prejudgment interest applies
For the general current branch, MCL 600.6013 runs interest from complaint filing through satisfaction and is not limited to liquidated claims. Complaint dates before July 1, 2002, qualifying written instruments, tort settlement offers, medical-malpractice cases, and future damages have separate statutory treatment.
When it starts accruing
For covered complaints, subsection (1) does not allow interest on future damages from complaint filing through judgment entry. Interest on that future-damages component begins at judgment. Other covered amounts in the general subsection (8) path run from complaint filing through satisfaction.
Simple or compound
Annual compounding is specified for the general subsection (8) and current written-instrument subsection (7) branches. Exact six-month application intervals, annual anniversaries, day count, payments, and every older complaint-vintage branch remain outside the calculator.
How the rate is set
Michigan Treasury certifies a five-year Treasury benchmark for January 1 and July 1. The general subsection (8) rate adds one point, but the statute applies the rates in six-month intervals from complaint filing. Current certificate (effective July 1, 2026): 3.959% + 1% = 4.959%.
→ Compare with the Michigan post-judgment interest rate (interest after judgment)
For the general MCL 600.6013(8) path, Michigan's complaint-to-judgment interest uses the official Treasury benchmark plus one point and compounds annually. For covered complaints, future damages do not earn interest before judgment; that component begins at judgment. Written instruments, tort settlement offers, medical-malpractice rules, older complaint dates, and exact six-month application intervals require separate treatment. Reference only; not legal advice.
Effective-date history
| Effective date | Rate | Basis |
|---|---|---|
| July 1, 2026 | 4.959% | Published |
| January 1, 2026 | 4.725% | Published |
| July 1, 2025 | 5.083% | Published |
| January 1, 2025 | 5.016% | Published |
| July 1, 2024 | 5.359% | Published |
| January 1, 2024 | 5.392% | Published |
| July 1, 2023 | 4.762% | Published |
| January 1, 2023 | 4.743% | Published |
| July 1, 2022 | 3.458% | Published |
| January 1, 2022 | 2.045% | Published |
| July 1, 2021 | 1.739% | Published |
| January 1, 2021 | 1.330% | Published |
| July 1, 2020 | 1.699% | Published |
| January 1, 2020 | 2.617% | Published |
| July 1, 2019 | 3.235% | Published |
| January 1, 2019 | 3.848% | Published |
| July 1, 2018 | 3.687% | Published |
| January 1, 2018 | 2.984% | Published |
| July 1, 2017 | 2.902% | Published |
| January 1, 2017 | 2.426% | Published |
| July 1, 2016 | 2.337% | Published |
| January 1, 2016 | 2.571% | Published |
| July 1, 2015 | 2.468% | Published |
| January 1, 2015 | 2.678% | Published |
| July 1, 2014 | 2.622% | Published |
| January 1, 2014 | 2.452% | Published |
| July 1, 2013 | 1.944% | Published |
| January 1, 2013 | 1.687% | Published |
| July 1, 2012 | 1.871% | Published |
| January 1, 2012 | 2.083% | Published |
| July 1, 2011 | 3.007% | Published |
| January 1, 2011 | 2.553% | Published |
| July 1, 2010 | 3.339% | Published |
| January 1, 2010 | 3.480% | Published |
| July 1, 2009 | 3.101% | Published |
| January 1, 2009 | 3.695% | Published |
| July 1, 2008 | 4.063% | Published |
| January 1, 2008 | 5.033% | Published |
| July 1, 2007 | 5.741% | Published |
| January 1, 2007 | 5.701% | Published |
Source & provenance
Observation recorded August 21, 2026 (00:00 UTC) from the cited source (Michigan Department of Treasury and Legislature (official)):
https://www.michigan.gov/taxes/interest-rates-for-money-judgments
Cite this page
StatuteRates. “Michigan Prejudgment Interest Rate.” StatuteRates.com. Accessed today. https://statuterates.com/rates/michigan-prejudgment-rate/ Rate recorded under MCL 600.6013, effective July 1, 2026.