Lansing · MI · 7 million licensed drivers licensed drivers · Primary industries: Automotive manufacturing and supply chain, Healthcare (Beaumont, Henry Ford, Spectrum, Trinity), Agriculture (cherries, blueberries, dairy), Aerospace and defense (Macomb County), Tourism (Upper Peninsula, Mackinac, Sleeping Bear Dunes)
Michigan has roughly 7 million licensed drivers covering 96,716 square miles divided between the Lower Peninsula and the Upper Peninsula. Detroit and the surrounding Tri-County area (Wayne, Oakland, Macomb) contains the largest concentration of population and business activity, anchored by the global headquarters of Ford (Dearborn), General Motors (Detroit), and Stellantis North America (Auburn Hills). Field engineers, supplier-quality engineers, and OEM account managers serving the automotive supply chain log enormous mileage volumes between assembly plants in Flat Rock, Sterling Heights, Warren, Lansing Delta Township, Lansing Grand River, Wixom, Romulus, Ypsilanti, and Saginaw. Tier 1 and Tier 2 supplier campuses scattered across Macomb, Oakland, Livingston, Washtenaw, Genesee, and Saginaw counties generate constant intra-state field travel on I-75, I-94, I-96, I-275, I-696, M-59, M-39 (Southfield Freeway), M-10 (Lodge Freeway), US 23, and US 127. Pharmaceutical and medical-device sales reps serving the Beaumont Health, Henry Ford Health System, McLaren Health Care, Trinity Health, Spectrum Health, and Munson Healthcare networks log 25,000 to 40,000 miles per year. Agricultural extension agents covering the Fruit Belt along Lake Michigan (Berrien, Van Buren, Allegan, Ottawa, Muskegon, Oceana, Mason counties) for the tart cherry, blueberry, peach, and apple industries cover significant rural mileage. The Michigan Department of Transportation (MDOT) maintains over 9,700 miles of state trunkline (interstate, US, and M routes), while county road commissions handle the local secondary network — a total exceeding 122,000 miles of public road. The Mackinac Bridge connects the Upper and Lower Peninsulas; tolls are reimbursable separately from mileage. Winter weather is a defining mileage factor: lake-effect snow off Lake Michigan and Lake Superior produces some of the heaviest snowfall totals in the eastern US, with cities like Marquette, Houghton, and Ironwood routinely receiving 200+ inches per year. The IRS standard mileage rate of 70 cents per mile (2025) governs federal income tax treatment.
| From | To | Distance (miles) |
|---|---|---|
| Detroit | Grand Rapids | 160 |
| Detroit | Lansing | 90 |
| Lansing | Grand Rapids | 70 |
| Detroit | Ann Arbor | 45 |
| Grand Rapids | Traverse City | 145 |
| Detroit | Flint | 65 |
| Detroit | Mackinaw City | 290 |
Michigan does not have a state statute requiring private-sector employers to reimburse business mileage at the IRS rate. The Michigan Payment of Wages and Fringe Benefits Act (MCL 408.471 et seq.) requires payment of agreed-upon wages and benefits, and reimbursement of necessary business expenses is generally treated as a fringe benefit subject to the Act. Most private employers default to the IRS standard mileage rate of 70 cents per mile (2025) because it is the simplest tax-free arrangement under IRC Section 62(c). State of Michigan employees follow the Department of Technology, Management, and Budget (DTMB) Standardized Travel Regulations, which currently set the personal vehicle mileage rate at the federal IRS rate (70 cents per mile in 2025) when a state vehicle is not reasonably available. Mackinac Bridge tolls (currently $4.00 for passenger cars) are reimbursable separately from mileage; the Mackinac Bridge Authority issues monthly statements for MacPass account holders. Field employees in the automotive supply chain frequently negotiate slightly higher per-mile rates (72 to 78 cents per mile) to reflect the punishing wear caused by Michigan's notoriously deteriorated road surfaces — particularly in the Detroit Tri-County area where pothole season can shorten tire and suspension component life. Field employees should retain mileage logs for at least three years for IRS purposes (Treasury Regulation 1.274-5) and three years for Michigan wage-claim limitation purposes (MCL 600.5805). Best-practice records include date, business purpose, starting odometer, ending odometer, and origin and destination, supplemented by MacPass statements, parking receipts, and fuel receipts when documenting actual costs. Automotive employers operating across the entire Tri-County area, Lansing, Saginaw, and Grand Rapids markets frequently deploy Fixed and Variable Rate (FAVR) programs approved under Revenue Procedure 2019-46. Lake-effect snow events in the western Lower Peninsula and the Upper Peninsula are reimbursable as legitimate business deviations when properly documented with MDOT Mi Drive 511 alerts.