If you have to miss work due to an accident, you should notify your employer as soon as possible. Be sure to follow whatever protocol they have for calling out and requesting time off. Have your doctor provide a note confirming the need for your absence due to injury. If you need to be out of work due to a car accident for an extended period of time, talk to your doctor about your options regarding FMLA or short term disability leave. They can also help you determine if you are able to work with restrictions, accommodations, or an amended schedule and help you submit the necessary requests and paperwork. Retain copies of all documentation and correspondence from your doctor as well as your employer. Compile pay stubs and any other records that can help illustrate any loss of income or utilized benefits such as paid time off.