It shouldn't arise as an issue with other companies unless special terms applied as I outlined above and the claim is outside the period they specifically ask you, i.e. 3/5/6 yrs, depending on the insurers. So, if you do a quote online or over the phone, you will be asked have you had a claim in the last 3/5 yrs? Has an insurer imposed any special terms and conditions? If you can answer 'no' truthfully then they should quote without taking the claim into account as you meet the underwriting criteria. If, after you send in the NCB, a company queries the claim (very unlikely), you can truthfully state you answered the questions asked fully, and if there is any problem with the new insurer you can refer the matter to the Insurance Ombudsman or the Insurance Federation. If you want to ask for it to be removed from the schedule, you can ask that this be done (I'm kind of surprised it's on it) but I don't know if they are obliged to remove it.