State comparison · Updated October 2026
Iowa vs. Minnesota Driving Laws (2026)
Iowa and Minnesota differ on 6 of 9 topics we track: learner's permit age, car insurance, car sales tax, new resident deadline, helmet law and lane splitting.
A drive from Des Moines to Minneapolis takes you across the border, and 6 of the laws change on the way. Key roads include I-80 on the Iowa side and I-35 in Minnesota; the capitals, Des Moines and Saint Paul, write the laws for each side.
The largest difference: new residents face 30 days in Iowa but 60 days in Minnesota ahead of the first deadline. Residents of Cedar Rapids heading to Saint Paul, or vice versa, follow both sets of rules: Iowa's on I-35 and Minnesota's once they cross on I-94. Read the Iowa vs Minnesota guide if you shop for a car between Des Moines or Minneapolis.
For a quick visit from Des Moines to Saint Paul, pack a helmet if you ride, set navigation ahead of time, and expect the same 70 mph top limit at the line.
| Topic | Iowa | Minnesota |
|---|---|---|
| Max speed limit | 70 mph | 70 mph |
| Phone law | Hands-free law | Hands-free law |
| Learner's permit age | Permit at 14 | Permit at 15 |
| Car insurance | 20/40/15 | 30/60/10 |
| Car sales tax | 5% | 6.875% |
| Car inspection | No regular inspection | No regular inspection |
| New resident deadline | 30 days | 60 days |
| Helmet law | No helmet law | Under 18 |
| Lane splitting | Not allowed | Splitting with limits |
Driving laws: Iowa vs Minnesota
Iowa vs Minnesota: Minnesota and Iowa agree on 70 mph for max speed limit and Hands-free law for phone law.
Learner's permit age: Iowa vs Minnesota
Iowa is earlier on learner's permit age, with Iowa with permit at 14 and Minnesota at permit at 15. Teens in Des Moines driving to Minneapolis obey Minnesota's permit rules while in the state.
Owning a car compared: Iowa vs Minnesota
Iowa vs Minnesota: Minnesota and Iowa match on car inspection (No regular inspection).
Minimum car insurance requirements: Iowa vs Minnesota
Iowa is lower on car insurance: Iowa at 20/40/15 and Minnesota with 30/60/10. Iowa is at-fault while Minnesota is no-fault. An insurance policy from Des Moines must be updated if you relocate to Minneapolis.
Car sales tax: Iowa vs Minnesota
Minnesota is higher on car sales tax: Iowa with 5% and Minnesota at 6.875%. For a $30,000 purchase, state tax comes to roughly $1,500 in Iowa versus $2,063 in Minnesota. Car hunters in Cedar Rapids and Saint Paul pay car tax where the car is registered, wherever they buy.
Moving deadlines: Iowa vs Minnesota
Minnesota is longer on new resident deadline: Iowa at 30 days and Minnesota at 60 days. Families moving from Cedar Rapids into Saint Paul can book DMV visits in advance.
Motorcycle side by side: Iowa vs Minnesota
Helmet law: Iowa vs Minnesota
Minnesota is stricter on helmet law, with Iowa with no helmet law and Minnesota at under 18. Riders crossing from Des Moines toward Minneapolis must follow Minnesota's helmet rule at the border.
Lane splitting: Iowa vs Minnesota
Minnesota is more permissive on lane splitting: Iowa at not allowed and Minnesota with splitting with limits. Riders splitting time between Cedar Rapids and Saint Paul get no exception.
Moving or buying across the border
- Iowa vs Minnesota: relocating from Iowa to Minnesota gives you 60 days for the car registration and 60 days for the license switch.
- The other way: 30 days for registration and no fixed license deadline.
Iowa vs Minnesota: FAQ
Where can you drive faster, Iowa or Minnesota?
Minnesota and Iowa each allow up to 70 mph.
Which state taxes cars less — Iowa or Minnesota?
Iowa charges less at the state level (5% vs. 6.875%).
Is a motorcycle helmet mandatory in both Iowa and Minnesota?
Iowa: No helmet law; Minnesota: Under 18.