What to do with South Dakota plates after moving to Maine
The answer can be return, cancel, destroy, recycle, or keep. Follow the reviewed South Dakota instruction only after the Maine registration and insurance handoff are safe.
Complete the replacement record
Convert the vehicle title and registration within 30 days after establishing Maine residency. Pay the municipal excise tax before completing the registration through the municipality or BMV.
Bring proof of Maine motor-vehicle insurance to the registration transaction and keep prior-state coverage active until the old registration is safely closed.
Update the South Dakota record and keep the old plates
After the destination registration is active, update the address in South Dakota's vehicle record through the online portal or your county treasurer. Remove and retain the South Dakota plates; the state describes them as staying with the owner. Keep the address-update confirmation with the new registration.
Open the official South Dakota instructionReviewed 2026-07-31- 1. Activate acceptable destination coverage
Confirm the effective date with the new insurer.
- 2. Register in Maine
Keep the issued registration or official receipt.
- 3. Complete the South Dakota plate action
Keep the surrender, cancellation, mailing, destruction, or retention record the state provides.
- 4. End or rewrite the old policy
Ask the insurer to use dates that do not create an uncovered active registration.
Sources for this closeout sequence
- South Dakota DOR: Motor vehicle records and platesChecked 2026-07-31 ↗Exit closeout
- Maine BMV: Register a passenger vehicleChecked 2026-07-31 ↗RegistrationInsuranceTitle / lienTax / fees