The No Claims Bonus (NCB from here on) is the single largest factor in determining your womens car insurance premium. Quite simply a no claims bonus relates to how many years you have gone without making a claim on your car insurance.
One years NCB will generally save you 15% on your cheap car insurance for women while four years or more NCB can save you as much as 60%. This is one of the reasons that it can be a good idea to start building your NCB early so when you can afford a better car, you can also afford the car insurance to go with it.
Once you have achieved the maximum NCB (~4 yrs) some insurers will allow you to "protect" your NCB so that in the event of an accident you will not lose any of your NCB.
Please note however that although you may have a protected NCB, you still need to declare any accidents on new insurance policies.
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