How long do I have to file a claim for a car accident?

The deadline is three years from the date of the accident, so the other party is still within the legal timeframe to claim. Technically it expires, but not as soon as you might expect - a lot of people think it's a year or less and are surprised. If there was property damage, insurance involved and all that, the best thing is to contact your insurer so they can handle it, because they deal with this better than you would on your own.