After receiving your official name change document, you should promptly update your name on all your identity documents, like your driver’s license, passport, Social Security card, as well as accounts like bank, credit cards, insurance, investment, licenses, titles, lease or mortgage, and anywhere else your name appears. There isn’t an actual deadline for updating your new legal name, after getting a name change document such as a court order name change, marriage certificate, divorce decree, adoption or naturalization. However, in time, you may lose your name change document. Documentation may change and not be recognized at some agencies years later. And clerks may reject a name change document if it’s too old out of concern that it may no longer reflect your current legal name. You can update years after you get your name change document, it’s still valid. But too much time can come with complications. So, as a practical matter, it’s best to update to your new legal name, once you have your legal name change, sooner rather than later.