Every car has to reach the end of its practicality one day. When that happens, you have to scrap it and inform the Driving and Vehicle Licensing Authority (DVLA) to get the car scrapped title. The DVLA issues the certificate of destruction once the Authorized Treatment Facility (ATF) completes its job.
The simple answer to this question is ‘Yes.’ A car insurance write-off comes with a category, which we have discussed in this post. When your insurer decides to write off your vehicle, it invalidates your insurance policy on that particular car at the same time.