What is the best time to port car insurance?

While there is no restrictive clause on the timing of porting your car insurance policy, it is advised to make the switch at the time of car insurance renewal, i.e. within 45 days of the expiration of your existing policy. This ensures that you avail the benefits from the existing policy such as No Claim Bonus, no vehicle inspection etc.

So, purchase car insurance online from a new company before the expiry date, provide your old insurance details, and the portability will be taken care of without your involvement.