Your renewal is every other year on your birthday. We mail renewal notices about 60 days before it expires. You’re responsible for renewing on time whether you receive a notice or not.
If you don’t renew on or before the expiration date it’ll expire. Any work done after it’s expired is unlicensed practice and can be subjected to penalties.
Renewals that over 90 days past the date of expiration require payment of a penalty fee equivalent to the fee for a one-year renewal in addition to the base renewal fee.