I have purchased a Single Trip policy, can I convert this to an Annual policy? 10 July 2019 09:29 We are unable to convert single trip policies to annual policies. Related articles Can you offer a single trip policy with CDW cover? What's covered? Am I covered if my policy renews in the middle of when I'm renting a car? Are tyres covered? My policy expires and renews part way through a rental, am I covered?