If you have earned 4 or more years no claims bonus, have peace of mind in knowing that one claim will not mean you need to start again. If you haven't opted for full bonus protection, you will keep part of your discount if you have 4 or more years built up.
4 years steps back to 1 year discount
If a second claim is made in the same insurance year, or if you have less than 4 years discount built up, the no claims discount will step back to 0 years.