Your first month in Missouri, in order.

1. Title & register your out-of-state vehicle

   Within 30 days of becoming a Missouri resident

   Missing the window adds a late penalty of $25 for the first 30 days plus $25 per additional 30 days, capped at $200 (RSMo 301.190).

2. Get a personal-property tax waiver (Statement of Non-Assessment)

   Before you register — if you were not a Missouri resident this January 1

   Get it from your county (or City of St. Louis) assessor by showing your out-of-state title or registration. It is the in-lieu document used to register a vehicle your first year.

3. Check whether this title or registration needs a safety inspection

   Before the license-office trip, if required

   Age and mileage are one exemption screen, but the transaction, model year, mileage, and renewal timing can change the answer. If DOR says an inspection is required, it generally must be no more than 60 days old.

4. Check whether the St. Louis-area emissions test applies

   Before the license-office trip, if required

   The program covers vehicles registered in the City of St. Louis or Jefferson, St. Charles, or St. Louis counties, with vehicle and transaction exemptions. It does not apply elsewhere in Missouri.

5. Get a Missouri driver license

   As soon as you establish residency

   There is no fixed day-count for a standard license (commercial CDLs must transfer within 30 days). With a valid out-of-state license the road test is usually waived; you still take the vision and road-sign tests. Choose REAL ID or non-REAL ID.

6. Register to vote

   Postmarked by the 4th Wednesday before an election

   Register by mail, in person, or online through the Missouri Secretary of State.

7. Know the January 1 personal-property rule

   Each January 1, going forward

   Missouri taxes what you owned on January 1. Declare your vehicles with the county assessor, and keep the paid receipt — you need it to renew your plates.

8. Plan for the 1% earnings tax

   Ongoing once you live or work there

   Kansas City and the City of St. Louis each levy a 1% earnings tax. Residents generally start with city-taxable earnings, while nonresidents generally allocate compensation to work done in the city. Cross-city credits, remote work, and part-year facts can change the return.

Deadlines and documents can vary by county and license office. Confirm with the Missouri Department of Revenue and your county before you go. This is general information, not legal advice.