How to become a car trader

Learn how to turn your business idea into a thriving business of buying and selling cars.

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The used car sales market is likely to be one of the biggest winners of the current economic downturn. The cost of living crisis has hit many UK households hard, and with NI increases and rising taxes, we all will be aiming to minimise our expenditure – including on car purchases.

But despite the demand, the sector is not without challenges. New data from Auto Trader shows that the average asking price of a used car in 2023 stood at £17,712. This represents a 2% spike from the previous year and has been accelerated by a global semiconductor crisis.

Clearly, the potential to succeed in the used car trade business is there. But as costs rise, how do you become an affordable supplier of second-hand vehicles and capitalise on this growing market?

To become a successful car trader, you don’t need to be a petrolhead. But you do need to know how to strike a deal, recognise a bargain when you see one, and understand exactly what your target market is after. Get that right, and you could see profits of £200 to £2,000+ per sale – all for a couple of hours of work.

We will cover all of this information and more in this extensive ‘how to’ guide, as you learn about the eleven steps needed to build a winning car trader business plan, such as registering as a sole trader and applying for trade plates. Start your engines… can help your business succeed

At, we’re here to help small UK businesses to get started, grow and succeed. We have helpful resources for helping new businesses get off the ground – you can use the tool below to get started today.

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Research the market

The first question you need to ask is simple – what type of car are your buyers after?

Car sale trends are in the midst of a huge shift, as diesel car purchases continue to decline year on year, electric vehicle sales continue to increase. The SMMT reported that one in five new cars registered last month are ‘zero-emissions capable’ as 33,000 new battery-powered cars were purchased from showrooms in September.

So, you’ll want to avoid delving too deeply into diesel car sales and instead focus primarily on petrol and electric vehicles to ensure you get the balance of supply and demand just right.

You should also keep an eye on what’s going on closer to home. For example, Clean Air Zones are in operation in and around the UK’s major towns and cities, which means a gas guzzler with high emission levels may not be the easiest car to sell.

An excellent source of automotive stats is the Society of Motor Manufacturers and Traders (SMMT). As well as representing the interests of the industry, it provides a wealth of car data and research valuable to someone new to the market, including: 

So what cars are selling?

Keeping up to date with buying trends is the first step to knowing which cars are the best to buy and sell. 

The latest data from SMMT states that Ford Fiestas and Vauxhall Corsas are the best-selling car models so far in 2021, with 27,381 Corsa registrations and 24,578 Fiesta registrations respectively. Purchasing these models is a sure-fire way to guarantee interest and get you that step closer to an easy sale!

How should I price my cars?

There are lots of factors that could affect the value of a car. These include:

  • Overall condition 
  • Mileage
  • Age
  • Gearbox
  • Modcons (e.g. aircon, Bluetooth, hands-free, heated seats)
  • Type of engine

To find out how the above factors could affect the value of the car you’re selling, local market research is key

Hop onto sites like Autotrader to gauge the guide prices for cars of a similar spec. You’ll then be able to offer a fair price while keeping profit margins in mind.

The other thing to think about is the time of year

For example, convertibles tend to sell for more in the warmer months, meaning purchasing one in late winter and selling it in mid-spring could be an easy way to see a profit. 

Or consider the fact that a lot of students learn to drive in the summer holidays, which means there could be a higher demand for cheap runarounds in the summer – and we all know that when supply outweighs demand, prices increase. 

How long does it take to sell a car?

While data collected by Autotrader suggests it takes on average 25-45 days to sell a car, if you judge demand right, you could see it rev off your drive in less than a week. 

Just make sure you factor in the time it takes to sell a car into your business plan. This is so you can assess the viability of your new venture. If you constantly have money tied up in an undesirable vehicle, you may experience cashflow issues, and end up losing money in the long run.

Write a business plan

This may seem like a premature step when you haven’t even bought your first car, but having a roadmap is essential to visualising the direction in which you want your business to go.

And a business plan doesn’t have to be complicated, especially when it comes to setting up a car trader business. In fact, Andy King, founder of original car buying comparison service JamJar, says: 

“A successful business plan for automotive companies [is] more of a guideline for the future. After all, startup costs are low, you have zero or few employees to worry about, and you haven’t got a huge original outlay to claw back. It’s more about giving yourself that “‘wiggle room’ [to] scale the company, [so it can] become what you want it to become.”

To start, you’ll need to carry out projected calculations for each car you sell. This will help prevent you from carrying out any work which may breach the ceiling price of the car. 

You should factor the following into your car trader business plan:

  • Any repair issues the cars may have
  • Any aesthetic improvements you might want to make
  • Legal regulations and marketing considerations you will want to be aware of

Once you’ve worked out your costs, you’ll know how much you can afford to pay for a car, and can assess if you need to raise any finance. 

You’ll also be able to work out how much you can afford to sell the car for, and estimate any profit. This can then help you set financial goals for the rest of the quarter/year. 

It might be that you aim to have enough cash to start selling two cars at the same time. Eventually, you may even be able to plan ahead so you have enough cash to purchase or lease a premises, and turn your side hustle into a full-on business.

Need help organising?

Project management software is a useful tool for organising your business plans. Create simple workflows to help arrange your own time, or the time of your teams and colleagues.

Find out which project management software we think is best.

Notify your local council

Selling cars from home is a great way to save money when you’re starting out as a car trader. If this is the route you decide to go down, you’ll need to notify your local council in order to ascertain how many cars you can have parked on the road at one time.

Find and contact your local council here.

Get accreditation from the Motor Ombudsman

The Motor Ombudsman is an impartial dispute handling service. By becoming accredited, you’re telling your customers that you’re dedicated to providing an honest, high level service. 

And if a buyer does raise a complaint, the Motor Ombudsman will guide you through the dispute resolution process so the complaint can be resolved fairly. 

But that’s not the only reason why you should get accreditation from the Motor Ombudsman.

Here’s a list of benefits:

  • Get unlimited access to its information line and adjudication service
  • Use of the Motor Ombudsman logo 
  • Collect valuable feedback from your customers 
  • Set up a customisable profile page to promote your business
  • Get access to Alternative Dispute Resolution and Consumer Rights training
  • Benefit from increased exposure and potential buyers!

How do I do it?

You’ll need to head over to its Register Online page. From there, you’ll be asked to call them, or fill in the online form. Either way, you’ll need to dedicate some time to chat over your application with a member of its business services team – we reckon it’ll be worth it!

Get Motor Trade Insurance

Once you’ve been given the go ahead by the council, you need to get yourself some Motor Trade Insurance, which covers all cars in your possession so they don’t have to be insured individually.

Motor Trade Insurance is a great option as, unlike private insurance, it allows you to add and remove as many cars as you like without having to pay additional costs.

There are four types of Motor Trade Insurance:

  • Road risk – the minimum cover necessary to satisfy the legal requirements of the motor trade. Only covers vehicles registered on the Motor Insurance Database (MID)
  • Third-party – covers you in the case of an accident that damages another vehicle
  • Third party, fire, and theft – covers everything above, as well as in the event of theft or fire damage
  • Comprehensive – covers all scenarios mentioned above for any vehicle you own, and allows you to claim for personal injury

Want to learn more about motor trade insurance? Visit our guide.

Apply for trade plates

Next, you need to apply for trade licence plates. These are mobile tax discs that save you having to tax and register every car that is temporarily in your possession.

Apply to the Driver and Vehicle Licensing Agency (DVLA) for a trade licence to be able to use trade plates.

These plates last for between six and 12 months, and expire on 30 June or 31 December. First time applicants can apply for seven to 11-month licences.

Buy a car to sell

There are a few different avenues you can go down when purchasing a used car. These are:

  • Auction and listing websites (such as eBay)
  • Car selling sites (such as Autotrader)
  • Auction houses

Just bear in mind that auction houses, while being the best place to get a bargain, come with the highest purchase risk. This is because you have less legal protection at an auction house, and you don’t always know what you’re getting. 

Make sure you thoroughly check the terms and conditions and background of the vehicle, otherwise you could end up purchasing a can of worms.

Our tip – if you’re not an auction aficionado, make sure you visit a few times before making a purchase.

Some tips on buying used cars

No matter where you decide to source your cars from, make sure you do the following:

  • Check the condition of the car you’re buying – use the government website to check out the car’s previous MOT history
  • Ask for the service history – the car could be worth up to 26% less without its log book
  • Make sure there are no outstanding hire purchase or conditional sale agreements – otherwise the car is unsaleable
  • Take the car for a test drive to see how it feels and functions. Test the brakes, examine the lights, ensure the gearbox transitions smoothly
  • Make sure the vehicle has a V5C registration document, which is used as proof of ownership – without it, it could be the case that the car is stolen
  • Ensure the purchase is in line with your business plan. Will it give you the profit margin you need?

What is a V5C registration certificate?

A V5C registration certificate registers your vehicle with the Driver Vehicle and Licensing Agency. (DVLA)

It includes essential information such as the date the car was first registered, its manufacturer, its engine size, and who is the registered keeper – i.e the person responsible for taxing the vehicle (not necessarily the owner).

Start selling cars!

Here’s what you need to do to get your vehicle ready for resale, and what to do when there’s interest. 

Getting the car out there

  • Make sure the car has passed its MOT – otherwise, you’ll find it hard to sell on. It may also be worth sorting out any advisories. 
  • It’s always a good idea to get the car valeted to give it more appeal
  • It doesn’t cost much to touch up any scratches. It may even be worth getting the car resprayed
  • Once you’ve carried out any work, get the car listed on websites such as eBay and Autotrader. You could even investigate local newspapers or car dealer magazines
  • Make sure you take some clear photos of the car – inside and out – and list all the relevant information

Keep on top of your finances

Starting a business takes money and time, and accountancy software can help with both. Whether you’re self-employed, a sole trader, or running a business with staff, you’ll need to stay on top of your finances. If you’re not ready to employ an accountant to help out, then we suggest using an online accountancy tool.

If you’re ready to buy and sell cars, you will want to make sure you have the right tools and processes in place to keep track of your money. Keeping an eye on your outgoing cash and incoming revenue is a necessary part of any successful business. But you don’t need to rely on spreadsheets and manual documents if you want to make life a bit easier.

Accountancy software is designed to simplify the complex processes related to money. From tracking your outgoings to managing your taxes, you’ll find any finance process simpler with the right tools in place. Take a look at the accountancy software that we’re rated best.

Or, take a quick look at our top recommended picks for accountancy software below:

Bear in mind...

  1. eBay takes 10% of up to £250 of the selling price. Meanwhile, Autotrader offers a range of listing packages, with a basic package to list a car worth over £1,000 costing £36.95.
  2. Ensure any work you carry out doesn’t breach the ceiling value of the vehicle – otherwise you could be in for a loss!

What makes a good car ad?

  • A detailed description, including unique and noteworthy features
  • The asking price and negotiating terms (be realistic)
  • The mileage
  • An honest assessment of the car’s condition and any issues
  • Plenty of photos
  • Maintenance and service history

Some tips on selling cars

It’s not all about creating a great advert – you need to be mindful of the legalities, too. 

Make sure you observe the Consumer Rights Act (2015) 

What does this mean?

The vehicle must be of satisfactory quality. Simply put, the condition of the vehicle should be what any reasonable person expects. 

The vehicle must be fit for purpose. In other words, the buyer should be able to use the car for the purposes any reasonable person would expect, including purposes advertised (e.g. towing).

The vehicle must appear as described. This ensures that you are not liable for any damages that have been pointed out, nor any breakdowns that may occur through normal use after purchase.


  • Be transparent – tell your buyers everything you know about the car, or else there could be legal consequences
  • Remember that the buyer is entitled to a repair, replacement, or refund unless you can prove a fault wasn’t there at the time of purchase
  • Take the buyer for a test drive – this is a good opportunity to tell them about the car
  • If the buyer agrees to purchase the car, make sure you both fill out the relevant parts of the V5C and send it to the DVLA – don’t let buyers take photographs of the documents (to avoid fraud)
  • You can choose to set your own warranty, or not have one if you wish. Just remember to provide the buyer with a receipt if you do include a warranty

Register as a sole trader

Once you’ve sold your first car, you should register as a sole trader (read more in our guide on how to register as a sole trader). It is important that you inform HMRC once you start trading so that you are registered for self assessment tax. You could be fined if you don’t do this!

As you start buying and selling more cars, you may decide to form a company rather than operate as a sole trader (read more in our guide on sole trader vs limited company differences). Even if you don’t set up a company, you may want to set up a separate bank account for your car trading activities to be able to track them more clearly.

Soft skills you need to be an excellent car trader

While you don’t quite need the selling charisma of Del Boy to become a car trader, you do need to have a certain air of confidence, and the natural ability to negotiate and overcome objections. We’ve summarised the key skills you’ll likely need below:

  • Confidence
  • Ability to give great customer service
  • Likeability – customers need to be able to warm to you
  • Strong negotiation and objection handling 
  • The ability to set and meet sales goals (remember that all important business plan!)
  • Honesty, and the ability to see from the customers’ perspective
  • Maths skills
It's important to appear professional

A winning personality might not be enough to earn the trust of potential clients. Creating a business email can help you appear more professional, and will also help you keep on track of your communications. Read our full guide on how to create a business email.

Creating a company and career progressions

So you’re making lots of money, you know you’ve made the right career choice, and now you want to expand your car trading business beyond the driveway. To create a proper company, you’ll need to create a succinct plan featuring KPIs (key performance indicators) to keep you in line. 

First things first – you don’t need to go at this alone. Michael Austen, CEO of Big Van World, successfully grew his business from a small van trading startup to a thriving enterprise with an £18m turnover. He says:

“If you find it difficult to translate your vision into a plan involving KPIs etc., then bring in someone who loves that kind of thing to formalise it for you. Someone who will help you take that vision and turn it into something more formal. Accept what you are good at and let others do the rest.”

It’s also about employing people that share your vision. Austin says: “For a plan to succeed, you have to have good people around you – a good team.” So if you’re looking to expand your business, make sure you do it alongside people who are going to help you make the next chapter a success. 

So how do you go about turning your side hustle into a fully fledged business? Well, there are two clear options. 

1. Franchise 

Having a recognisable name attached to your business always helps to get customers through the door. If you manage to get your hands on a franchise agreement, you’ll be able to partner with car manufacturers who’ll let you use their branding and their marketing material. 

Becoming a recognised dealer isn’t easy, though. You’ll need to have all the figures which prove to the car manufacturers that you’re the real deal – that you can sell a car, or two, or three, and make a decent profit. 

2. Consider financing

If you want to expand, but don’t have the capital to do so, you can ask the bank for a business loan. 

Again, this won’t be easy. You’ll have to present them with clear projections and a well-drafted business plan for the bank to even think about handing over its wad of cash. And bear in mind that you’ll need to be prepared to forfeit your cars and any other assets as collateral.

Taking credit card payments

An increasingly high percentage of car purchases are made using credit cards. Such cards present a range of advantages to the customer, including:

  • Avoiding paying interest
  • Protection by Consumer Credit Act 1974
  • Various reward schemes

Not taking card payments could be a major disadvantage for your business. Think of all those high-value sales you could lose!

Here’s what you need to take card payments for cars:

A merchant account

A merchant account is simply a type of bank account that allows you to accept credit or debit card payments.

It automatically authorises card payments made to your business for a small fee, and then deposits the earnings from the sale in your bank account.

Merchant accounts can also protect against card fraud.

Check out our comparison of the UK’s best merchant service providers 

Card machines for small businesses

You’ll also need a card machine to take credit card payments.

Card readers are becoming increasingly compact and powerful, and there are many providers to choose from.

Most have similar functionality, so you’re likely to base your decision on:

  • The price
  • The transaction fee (usually between 1-2% of the value of the payment)
  • Reliability

Not sure which card machine is right for your car trading business?

Not to worry – we’ve compared the 6 best card machines for small business so you don’t have to.

Becoming a car trader: main takeaways 

So there you have it – your guide to becoming a car trader. 

It’s a lot to take in, so we’ve summarised the article into three clear points. 

  1. It’s not hard to start a car trading business – at least not if you’re looking to buy and sell cars off your driveway. Just be clever with the cars you acquire, and make sure any work you do to them increases the value without breaching the ceiling price of how much you can actually sell the car for. 
  2. Make sure you cover your own back. That means you should conduct business ethically, and sign up to the Motor Ombudsman just in case you need a third party to resolve a dispute fairly. 
  3. Make sure you have a business plan, especially if you want to expand your business in the future. A potential franchising partner, or bank manager, will want to see proof that you’re the real deal before signing over any money. can help your business succeed

At, we’re here to help small UK businesses to get started, grow and succeed. We have helpful resources for helping new businesses get off the ground – you can use the tool below to get started today.

What Does Your Business Need Help With?

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Written by:
Aimee is Startups' resident expert in business tech, products, and services. She loves a great story and enjoys chatting to the startups and small business community. Starting her own egg delivery business from the age of 12, she has a healthy respect for self-starters and local services.
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