How long do I have to file a personal injury case?

This will depend on the statute of limitations in your state. A personal injury case may need to be filed within a year of the accident, or you may have as much as four years to file. You should check the rule in your state to make sure that you do not accidentally waive your rights. There are some exceptions to the statute of limitations, but they are very narrow, so you should not assume that an exception applies. As a practical matter, moreover, you should try to pursue a claim as soon as possible while the evidence is still fresh. This will help you prove liability and the scope of your damages.