
In Michigan, the legal minimum age to rent a car is 18. However, the vast majority of major rental car companies set their own minimum age policy at 21. If you are between 21 and 24 years old, you will almost certainly be charged a "Young Renter Fee," which is a daily surcharge. The most straightforward rental experience, without age-related fees or restrictions, typically begins at age 25.
The key factor isn't just state law but the individual policies of each rental company. While an 18-year-old can legally sign a contract, most companies deem the risk too high. The table below outlines the standard policies from major national rental agencies operating in Michigan.
| Rental Company | Standard Minimum Age | Policy for Ages 21-24 | Estimated Young Renter Fee (Daily) |
|---|---|---|---|
| Enterprise | 21 | Allowed with fee | $20 - $30 |
| Hertz | 20 (at select locations) | Allowed with fee | $19 - $25 |
| Avis | 21 | Allowed with fee | $27 - $35 |
| Budget | 21 | Allowed with fee | $27 - $35 |
| National | 21 | Allowed with fee | $25 - $30 |
What to Expect if You're Under 25: Beyond the daily fee, you should anticipate additional requirements. Rental companies will strictly enforce their highest eligibility criteria. This means you must have a valid, unrestricted driver's license that you've held for at least a year, and you'll need to present a major credit card in your name (debit cards or prepaid cards are almost never accepted for young drivers). The vehicle choices may also be limited, often excluding premium, luxury, or SUV models.
It's crucial to call the specific rental location you plan to use to confirm their policy and the exact fee amount, as there can be variations even within the same company.

Just turned 21 and tried to rent a car at Detroit Metro Airport. Yeah, you can do it, but get ready for the "under-25" fee. It was an extra $25 a day on top of the rental rate. They also would only accept my credit card, not my debit card. It adds up, so you have to really factor that into your budget. The process was smooth otherwise, but that surprise cost stung a bit.

From an insurance perspective, the age policies make sense. Rental companies face significantly higher claim rates for drivers under 25. The young renter fee is essentially a risk premium to cover that potential liability. While state law sets a bare minimum, the companies' stricter rules are a direct reflection of actuarial data. It's a business decision to mitigate financial exposure from a statistically higher-risk driver demographic.

My advice is to always use the rental company's official website and enter your exact age and dates before you get to the airport. The website will automatically apply any young driver fees so you see the true total cost upfront. This prevents any nasty surprises at the counter. Also, some smaller, local rental agencies might have more flexible policies than the big national chains, so it's worth a quick online search.

Planning a road trip from Ann Arbor to the Upper Peninsula? If you're under 25, start your planning with the rental car. That daily fee can really impact your trip's cost. I'd recommend comparing total costs across a few companies, as the base rate plus the young driver fee can vary. Also, see if any membership you have (like through a university or certain credit cards) offers a waiver or discount on the fee. It’s all about doing that research ahead of time.


