Pay-by-the-mile car insurance

What is pay-by-the-mile car insurance?

Quite simply, this type of car insurance charges people according to the actual miles they drive rather than an estimated figure. After an initial amount to cover risks like theft that happen when a car is parked, policyholders then either pre-pay for a certain number of miles and top up if necessary – often called “pay-as-you-go car insurance” – or receive a monthly charge to their account for the miles driven over that period.

Using a telematics – or “black box” – device, the insurer monitors your mileage and makes the necessary charges, or alerts you when you come close to passing your pre-paid mileage limit so you have time to consider your options.

Why does mileage affect my car insurance premium? 

Annual car insurance policies ask for details of the driver’s yearly mileage – this is a key risk factor the insurance underwriter considers when calculating your annual premium: the more hours or miles you spend behind the wheel, the greater the risk of you having an accident and claiming on your policy.

Here’s an example of how the mileage you declare can affect your premium:

Using the Uswitch car insurance price comparison tool: For a middle-aged man with 20-years’ no-claims bonus and living in an East Midlands town who drives a seven-year-old 1.4 litre estate car with a voluntary excess of £250: 

- Declaring 1,000 miles a year: cheapest quote of £228 - Declaring 6,000 miles a year: cheapest quote of £279

This shows that, generally, the greater number of miles you declare when arranging your policy, the higher the premium is likely to be. 

And you must not lie or unreasonably underestimate the number of miles you drive a year as this could invalidate your policy if you have an accident and need to make a claim.

However, there are quirks within the system, with some people seeing premiums rise when they cut their mileage estimate.

This is based on the risk-based system used to determine premiums - for example, only driving a few times a week could be a result of driving only in the evenings and at weekends, when accidents are more likely.

How does pay-by-the-mile car insurance work?

It’s a form of telematics, or “black box”, car insurance. You’ll be sent a telematics device that you fit to your car which monitors your mileage. The device may also link up with an app on your mobile phone, so you can monitor precisely how many miles you drive and how much you are paying for each trip.

The most common pay-by-the-mile policies consist of two separate fees:

What if I need to travel more miles than declared?

For the pre-paid pay-per-mile policies, you will be notified through your mobile app when you are approaching the limit of miles that you’ve already paid for. At this point you can top up by paying for extra miles.

Be warned, however, if you’ve underestimated your annual mileage to get a cheaper price and run out of miles several months before your policy ends, you may be charged a higher per-mile rate for topping up, or even risk having your policy cancelled.

For some, however, it doesn’t matter if you exceed your estimated mileage. By Miles, for example (four out of five stars on Defaqto, five stars Moneyfacts, 4.7 stars on Trustpilot) charges each month for the miles you drive, whether you estimated five miles and drove 500, or estimated 500 and only drove five.

Who is pay-by-the-mile car insurance most suitable for?

This type of car insurance was designed specifically for those who drive least often – for example:

Conversely, this type of car insurance may not be suitable for those who make frequent use of their vehicles – such as for:

How much does pay-per-mile car insurance cost?

Similarly to annual insurance, several risk factors are taken into account when assessing the cost of your premium. These include:

Younger and less experienced drivers will still pay more than those with several years behind the wheel without claiming, but they can save money over the cost of an annual policy.

Let’s look at some comparisons:

Example 1: can experienced drivers save money?

The same middle-aged man as above, insuring the same vehicle with one of the better-known and well-trusted (TrustPilot star rating of 4.7 out of 5) per-mile insurer, By Miles. 

By Miles’ quote calculator provided the following two prices:

- A standing charge for the year of £172 - A driving charge of 3.2p per mile

While it asks for a mileage estimate on its online quote generator, you will be charged the same rate, no matter how many miles you drive. Thus:

- 100 miles – £175.20 - 1,000 miles – £204 - 6,000 miles – £364

The annual insurance quote for declaring 1,000 miles was £228. Thus, a saving of £24 is enjoyed for using pay-per-mile insurance. However, once this example’s mileage rises to 6,000 a year, the annual policy is cheaper.

Example 2: how much can drivers with limited experience save?

A 25-year-old with five years of no claims, living in the same East Midlands town to insure the same seven-year-old estate car paying £250 voluntary excess. Quotes accessed in February 2021:

Cheapest non-telematics annual policy, annual mileage of 1,000 declared - premium cost: £643

By Miles pay-per-mile car insurance - 1,000 miles declared: 

- Standing charge of £305 a year - Price per mile of 3.7p

A total premium of £341.75, and a saving of more than £300 over the annual policy. 

The 25-year-old can actually afford to drive more than 8,000 miles a year on the pay-per-mile policy and still save on the cheapest annual policy.

By Miles only insures those above the age of 25, so a 19-year-old who qualified to drive just over a year ago has fewer options. Nevertheless, there are several other pay-by-the-mile insurers that can save this young driver money. 

Example 3: can teenage drivers also save money?

Here we’re using Marmalade, (Trustpilot 3.4 stars) which specialises in car insurance products for young drivers. This 19-year-old lives in the same East Midlands town  and drives the same 1400 estate borrowed from a parent as a named driver.

Annual policy declaring annual mileage of 1,000 and paying a voluntary excess of £250 – cheapest non-telematics-based quote: £3,170

Marmalade – initial charge of £295 for 500 miles, then £37 for each top up of 100 miles.

To drive 1,000 miles a year, the annual cost would be:

- £295 for 500 miles + (£37 x 5) for the additional 500 miles = £480

This represents a massive saving for the 19-year-old driver who drives only a few miles a year in a borrowed car. Furthermore, if he or she claims on the policy it will not affect the no claims bonus of the parent.

What are the limitations of pay-per-mile car insurance?

As the above examples show, younger, less experienced drivers can enjoy huge savings over a standard annual policy by using a pay-by-the-mile car insurance scheme. Older drivers can also save, but it may be cheaper for them to take out annual insurance if they are driving more than a couple of thousand miles a year.

There are some other limitations to this type of car insurance:

What does pay-by-the-mile car insurance cover?

All pay-by-the-mile car insurance policies offer comprehensive cover. This may include as standard:

How does pay-per-mile insurance differ from other black box policies?

Both use a “black box” telematics device fitted to your car. The basic difference is one charges for how far your drive, while most black box polices charges are based on how and when you drive.

Pay-by-the-mile policies are tailored specifically for those who drive only a limited number of miles per year. While the insurance company will monitor you through a telematics device, it is only interested in the number of miles you drive.

Black box insurance monitors driving behaviour – such as speed, braking, acceleration, as well as where and when you drive – and bases its renewal premiums on analysis of how carefully you drove over the year.

Thus, pay-per-mile insurance is typically more suited to infrequent drivers, as its pricing is based on the reduction of a single risk factor – time spent behind the wheel. Black box schemes may be better for young drivers who need to cover more mileage a year.

Who is offering pay-by-the-mile car insurance?

Several companies now offer insurance priced by the mile. They can differ quite widely in the terms they offer and how their policies are priced. Here are some examples:

What are customers saying about pay-per-mile car insurance?

By Miles is the best rated by customers on Trustpilot (4.7/5 stars). Here’s what they’re saying on its customer review portal:

“Simple, fair and accurate way of insuring my car.”

“Perfect service for customers who are environmentally minded and try to reduce their carbon footprint. Also helps tremendously that I’m saving a fortune.”

Marmalade is rated 4.5 stars on Trustpilot. Here’s what its customers have to say:

“Marmalade were by far the cheapest around and arranging insurance for my daughter online was straight forward and super easy. Highly recommended.”

“Quick and easy. Much cheaper than I expected.”

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