My car was vandalised and written off a couple of years ago - it did affect my NCB until the claim was settled and found not to be my fault, then it was reinstated, but you still have to declare the claim if you go to a new insurance company (it may not make any difference though, you just need to declare it).
OH was shunted and he lost his NCB too until the claim was settled - as soon as the third party paid up, it was reinstated.



