State comparison · Updated October 2026
Alabama vs. Mississippi Driving Laws (2026)
Alabama and Mississippi differ on 2 of 9 topics we track: phone law and car sales tax.
Heading from Huntsville to Jackson crosses the border, and 2 of these rules differ once you cross. Key roads are I-65 on the Alabama side and I-55 in Mississippi; the capitals, Montgomery and Jackson, write the laws for each side.
The biggest gap: the state tax on a $30,000 car differs by $900. Residents of Birmingham who travel to Gulfport, and back, live under both rulebooks: Alabama's on I-20 and Mississippi's after the border on I-20. Use the Alabama vs Mississippi guide before driving from Huntsville or Jackson.
For a weekend trip from Montgomery to Jackson, pack your documents and proof of insurance, plan the route before leaving, and look for the same 70 mph top limit at the border.
| Topic | Alabama | Mississippi |
|---|---|---|
| Max speed limit | 70 mph | 70 mph |
| Phone law | Hands-free law | Texting ban only |
| Learner's permit age | Permit at 15 | Permit at 15 |
| Car insurance | 25/50/25 | 25/50/25 |
| Car sales tax | 2% | 5% |
| Car inspection | No regular inspection | No regular inspection |
| New resident deadline | 30 days | 30 days |
| Helmet law | All riders | All riders |
| Lane splitting | Not allowed | Not allowed |
Driving laws side by side: Alabama vs Mississippi
Alabama vs Mississippi: Alabama and Mississippi agree on 70 mph for max speed limit and Permit at 15 for learner's permit age.
Phone law: Alabama vs Mississippi
Mississippi is looser on phone law: Alabama at hands-free law and Mississippi with texting ban only. What you can do with a phone around Huntsville might not be near Jackson once you cross.
Owning a car compared: Alabama vs Mississippi
Alabama vs Mississippi: Mississippi and Alabama match on 25/50/25 for car insurance, car inspection (No regular inspection) and new resident deadline: 30 days.
Car sales tax: Alabama vs Mississippi
The law is higher in Mississippi on car sales tax: Alabama with 2% and Mississippi at 5%. On a $30,000 car, state tax is around $600 in Alabama and $1,500 in Mississippi. Shoppers in Birmingham or Gulfport owe the tax based on their registration address, wherever they buy.
Motorcycle side by side: Alabama vs Mississippi
Alabama vs Mississippi: Alabama and Mississippi match on helmet law: All motorcyclists and lane splitting: Not allowed.
Moving or buying across the border
- Alabama vs Mississippi: relocating from Alabama to Mississippi means 30 days for the car registration and 60 days for a license.
- Moving from Mississippi to Alabama: 30 days to register and 30 days to switch licenses.
Alabama vs Mississippi: common questions
Where may you drive faster, Alabama or Mississippi?
Mississippi and Alabama each allow up to 70 mph.
Is car tax lower, Alabama or Mississippi?
Alabama charges less at the state level (2% vs. 5%).
Is a motorcycle helmet mandatory in both Alabama and Mississippi?
Alabama: All motorcyclists; Mississippi: All motorcyclists.