Understanding one of the biggest factors affecting the cost of car insurance.

Car insurance premiums can vary significantly between drivers. One of the most important factors insurers consider is your No Claims Bonus (NCB), sometimes called a No Claims Discount (NCD).

If you've heard the term but aren't sure what it means, this guide explains how it works, how it can reduce your insurance costs, and what happens if you make a claim.

What Is A No Claims Bonus?

A No Claims Bonus is a reward offered by insurers for each year you drive without making a claim on your car insurance policy.

Generally:

• One claim-free year = 1 year NCB

• Two claim-free years = 2 years NCB

• Five claim-free years = 5 years NCB

The more claim-free years you build, the larger the discount you may receive when renewing your policy.

How Much Can You Save?

Every insurer calculates discounts differently, but a No Claims Bonus can significantly reduce premiums.

For example:

Claim-Free Years Typical Discount Range

1 Year 20% – 30%

2 Years 30% – 40%

3 Years 40% – 50%

5+ Years 50% – 70%

Discounts vary between insurers and should only be viewed as general examples.

How Do You Build A No Claims Bonus?

You normally earn a year of No Claims Bonus when:

• Your policy remains active for a full year

• No claims are made during that period

• The policy is renewed or completed successfully

Insurers will usually provide proof of your No Claims Bonus if you move to another provider.

What Happens If You Make A Claim?

Making a claim may reduce or remove some of your accumulated bonus.

For example:

A driver with 5 years NCB may fall back to:

• 3 years NCB

• 2 years NCB

• or lower

depending on the insurer's rules.

Not every claim has the same effect, and some insurers apply different step-back rules.

What Is Protected No Claims Bonus?

Many insurers offer Protected No Claims Bonus as an optional extra.

Protection may allow you to make a limited number of claims without losing your bonus.

However, it's important to understand:

Protected NCB does not always prevent your premium from increasing.

Even if your bonus remains intact, insurers may still increase your premium because a claim has been made.

Can A No Claims Bonus Be Used On More Than One Car?

Usually, a No Claims Bonus can only be used on one vehicle at a time.

If you insure multiple vehicles, each policy normally builds its own claim-free history.

Some insurers may offer multi-car arrangements, but rules vary.

What Happens If You Stop Driving?

Many insurers will accept proof of No Claims Bonus for a limited period after a policy ends.

Common acceptance periods range from:

• 1 year

• 2 years

After a longer break, some insurers may no longer recognise older bonuses.

Always check the insurer's requirements before switching providers.

Why Does No Claims Bonus Matter?

A strong No Claims Bonus can:

• Reduce annual insurance costs

• Improve access to competitive quotes

• Reward safer driving habits

• Make comparing policies more worthwhile

For many drivers, it is one of the most valuable ways to lower long-term insurance costs.

Learn More

• How UK Car Insurance Works

• What Affects Your Car Insurance Premium?

• How To Compare Car Insurance Safely Online

• What Is Excess On Car Insurance And How Does It Work?

• What Is No Claims Bonus And How Does It Work?

• Comprehensive vs Third-Party: What's the Difference?

• Named Drivers Explained: How They Affect Your Car Insurance

• How Can You Reduce Your Car Insurance Premium?

• How Does No Claims Protection Work?

• Can You Drive Other Cars On Your Insurance?

• What Insurance Group Is My Car?

• What Happens If You Make A Car Insurance Claim?

• How To Choose The Right Level Of Cover

• What Modifications Affect Car Insurance?

• What Is Black Box Insurance And How Does It Work?

Common Questions

How many years of No Claims Bonus can I build?

Many insurers recognise five or more years, although some may continue recording additional claim-free years.

Can I transfer my No Claims Bonus to another insurer?

In many cases yes, provided you can supply proof of your claim-free driving history.

Does Protected No Claims Bonus stop premiums increasing?

Not necessarily. Protection may preserve your bonus, but insurers may still increase premiums following a claim.