PlateHarbor
CT Vehicle registration renewal

How to renew registration in Connecticut

Renew the current registration in Connecticut. Use the method below that matches how you want to renew.

Last synced Apr 23, 2026, 7:17 AM UTC from official source .

Grace period 5 days.

Get one email before your usual renewal month

Use the month your Connecticut renewal usually comes due. PlateHarbor will send a backup email before that month.

  • State-specific renewal page already selected
  • No account required
  • Useful if the state notice never shows up

One reminder, once a year, before the month you choose.

What to bring

  • renewal notice, plate number, or current registration details
  • current Connecticut insurance on file
  • emissions compliance if Connecticut requires a test before renewal

How to renew

Renew online through the Connecticut DMV registration renewal service.

Renew by mail using the Connecticut renewal notice instructions.

What to mail
  • renewal notice, plate number, or current registration details
  • payment for the renewal fees
  • current Connecticut insurance on file

Where to send it: Send it to the mailing address shown on the state renewal notice or official instructions.