Most sellers look at the headline listing fee and think they've done their homework. They haven't. The true cost of selling a car online in the UK in 2026 includes listing fees, relist fees, final value commissions, and — on the free platforms — an invisible but very real cost in wasted time. Here's what every major platform actually charges, with nothing left out.
The True Cost of Selling Your Car Online
There are four cost categories that matter when selling a car online:
- Listing fees — what you pay to put your car in front of buyers.
- Relist fees — what you pay when your car doesn't sell in the initial window (applies to AutoTrader; not relevant on flat-fee or commission platforms).
- Commission / final value fees — a percentage of the sale price taken by the platform (eBay Motors is the main offender here).
- Hidden costs — premium placement, photo packages, time spent on scam enquiries, and the HPI check buyers increasingly expect.
The cheapest platform on paper (Facebook Marketplace: £0) is often not the cheapest platform in practice when you factor in hours spent filtering fake enquiries. The most transparent platform (flat fee, no commission, no relist charges) is often not the most famous one.
Platform Fees: Full Breakdown
Here's what each major UK platform charges private sellers in 2026 — listing fees, commission, and the catches nobody puts in the headline number.
AutoTrader: £37–£80 Per Listing Window
AutoTrader is the UK's largest car marketplace with around 55 million monthly visits. That reach comes at a price — and the pricing model is structured in a way that rewards quick sales but compounds costs for sellers whose cars take longer to shift.
Private seller fees in 2026 are tiered by the car's asking price and the listing duration you choose:
- Cars priced under £1,000: from £37 for 2 weeks
- Cars priced £1,000–£5,000: from £49 for 2 weeks
- Cars priced £5,000–£15,000: from £69 for 2 weeks
- Cars priced over £15,000: from £80 for 2 weeks
The critical detail: these are per-listing-window fees. If your car doesn't sell, you pay again to relist. A car priced at £8,000 that takes 8 weeks to sell has racked up £138–£276 in listing fees (2–4 windows at £69 each) before any sale price is agreed. AutoTrader's fee page doesn't show you this number — you have to calculate it yourself.
Premium placement options (featured listing, promoted placement) are sold separately and can push the real cost significantly higher. DVLA registration plate auto-fill is not available for private sellers on AutoTrader — you enter vehicle details manually.
Bottom line: AutoTrader makes sense when your car needs maximum UK reach and you're confident it will sell within the first listing window. If the car takes multiple windows to shift, the fee bill climbs fast.
eBay Motors: £14.99 + 12.8% of the Sale Price
eBay's fee structure looks cheap at the top — £14.99 to list. It's not. eBay charges a 12.8% final value fee on the total sale price, capped at £497.
What that actually costs on mid-range cars:
- £3,000 car: £14.99 listing + £384 final value fee = £399 total
- £5,000 car: £14.99 listing + £654 final value fee = £669 total (capped at £512)
- £10,000 car: £14.99 listing + £1,280 — capped at £511.99 total
The cap at £497 helps on high-value cars, but for anything in the £3,000–£8,000 range — the bulk of private sales in the UK — eBay's commission structure makes it one of the most expensive platforms per transaction. A £5,000 car sale costs the seller over £500 in eBay fees.
eBay also has a meaningful fraud problem. Fake payment confirmation screenshots, "I'll pay by bank transfer, please send via my shipping agent" scams, and non-paying bidders are part of the eBay selling experience. Understanding how to identify these is a prerequisite for using the platform safely.
Bottom line: eBay Motors works for very cheap cars where 12.8% is a small absolute number, or for genuinely desirable cars that attract competitive bidding. For a typical £3,000–£15,000 private sale, the commission makes it a poor choice. Do the maths before listing.
Facebook Marketplace: Free to List, but Not Costless
Facebook Marketplace has no listing fee. It's free to post, free to respond to enquiries, and there's no commission on the sale. On paper, it's the cheapest platform in the UK.
In practice, the "cost" is your time. Facebook Marketplace vehicle listings consistently generate a high proportion of:
- Scam enquiries — fake payment screenshots, overseas "buyer" requests, shipping agent scams.
- Lowball brigade — automated offers at 40–60% of asking price, often from accounts with no profile history.
- No-shows — buyers who confirm a viewing time and simply don't appear.
- Tyre-kickers — buyers who have no genuine intent but will ask detailed questions for hours.
A seller spending 4–5 hours filtering bad enquiries to avoid a £49 listing fee hasn't saved money — they've traded money for time at a poor rate. The calculation depends entirely on how you value your time.
Facebook Marketplace works well for sub-£2,000 cars where you're targeting a quick, local, cash-in-hand sale and can meet the buyer promptly. For higher-value cars, the enquiry quality makes it a frustrating primary channel.
Bottom line: Zero listing cost. High time cost. Best for low-value, local, cash sales. Not recommended as the only channel for anything over £3,000.
Gumtree: Free Tier Plus Paid Upgrades
Gumtree offers a free basic listing and a paid featured listing (£24.99) that gives more prominent placement. There's no commission on the sale price.
Gumtree's main problem isn't fees — it's audience quality and declining platform traffic. Gumtree was the dominant UK classifieds platform before Facebook Marketplace absorbed most of the free-listing audience. The buyer pool is smaller than it was, the scam rate is similar to Facebook Marketplace, and the buyer intent skews lower than on AutoTrader or PistonHeads.
Featured listings at £24.99 are the only meaningful paid option, and the uplift in serious enquiries from a featured listing on a declining platform is debatable.
Bottom line: Reasonable as a free backup channel alongside a primary platform listing. Not worth using as your only listing destination. The £24.99 featured upgrade is unlikely to generate enough additional enquiries to justify the cost versus listing on a quality platform from the start.
MotorBoard: £36 or £60 Flat Fee, No Commission
Disclosure: this is MotorBoard's own blog, so factor that in.
MotorBoard charges private sellers a flat listing fee with two options:
- £36 — 6-week listing. Your car is live for 6 weeks. If it sells in day 2, the cost was £36. If it sells on day 41, the cost was £36.
- £60 — listing stays live until your car sells. No expiry date, no relist fees, no time pressure.
No commission on the sale price. No premium placement packages. No photo upgrade fees — up to 20 photos and 1 video are included in every listing as standard. DVLA registration plate lookup auto-fills make, model, year, fuel type, transmission, and engine size — no manual data entry.
The first 500 private sellers also get a free 14-day trial listing before paying anything.
The honest limitation: MotorBoard is a newer platform, which means a smaller current audience than AutoTrader. If your car is unusual, high-value, or requires the absolute maximum UK exposure to find a buyer, AutoTrader's audience size is a genuine advantage. For a mainstream car priced between £3,000 and £25,000, the fee comparison is straightforward.
Bottom line: The lowest fixed cost of any UK platform that maintains listing quality. No commission risk, no relist fee exposure. The free trial for the first 500 sellers makes it a zero-risk first test.
Claim your free 14-day listing →
Hidden Costs Sellers Miss
Beyond the platform fees, there are costs that serious sellers factor in — and most first-time sellers don't.
- Professional photos — A properly photographed car on a clean background genuinely sells faster. If you're not confident in your photo setup, a mobile detailer and an hour with a decent camera pays back more than it costs. Budget £50–£100 if you hire someone. If you do it yourself: wash, valet, empty boot, overcast day, find a clean background.
- HPI check — Buyers of cars over £3,000 increasingly expect the seller to provide an HPI certificate confirming no outstanding finance, no write-off history, and no stolen status. An HPI check costs £14–£20 from the major providers. Without one, some serious buyers will simply move on to a seller who has one.
- MOT on a car with a short test — A car with 3 weeks of MOT left will sit on the market. Buyers discount heavily for a car that needs testing immediately. An MOT costs around £55. If your car has less than 3 months of test remaining, getting it through before listing can recover £200–£500 in asking price.
- Time cost of scam filtering — On free platforms, you will deal with scammers. The time spent on fake enquiries, no-shows, and low-quality viewings is a real cost that doesn't show up in the listing fee comparison but absolutely shows up in your week.
- Relist fees — As covered above, AutoTrader's per-window model means a car that takes 3 listing windows costs 3× the headline fee. Budget for the realistic sell time of your car, not the optimistic one.
Full Cost Comparison Table
Here's the complete breakdown for selling a £6,500 car on each platform, assuming the car takes 6 weeks to sell:
| Platform | Listing fee | Commission | Relist cost (6 wks) | Total cost (6 wks) |
|---|---|---|---|---|
| MotorBoard | £36 (6 weeks) | None | None | £36 |
| AutoTrader | £69 per 2 weeks | None | £69 × 3 windows = £207 | £207 |
| eBay Motors | £14.99 | 12.8% = £832 | N/A (buy it now) | £847 |
| Gumtree (basic) | Free | None | None | £0 (low buyer quality) |
| Facebook Marketplace | Free | None | None | £0 (high scam rate) |
For the same £6,500 car, MotorBoard costs £171 less than AutoTrader and £811 less than eBay Motors — without any of the scam risk of the free platforms.
If your car sells in the first 2 weeks on AutoTrader (one window), the cost is £69 vs. MotorBoard's £36. At 4 weeks it's £138 vs. £36. Beyond 4 weeks, MotorBoard's flat fee is dramatically cheaper.
What's Actually the Cheapest Way to Sell Your Car?
If you value your time at zero, Facebook Marketplace and Gumtree are technically free. If you value your time — which you should — then "free" platforms have real costs in scam filtering, no-shows, and low-quality viewings.
For most private sellers in the UK selling a car priced over £2,000, the ranking looks like this:
- MotorBoard — £36–£60 flat fee, no commission, DVLA auto-fill, 20 photos + video included. Lowest fixed cost of any quality platform. Free 14-day trial for first 500 sellers.
- PistonHeads — Free basic listing for performance and enthusiast cars. Limited audience for mainstream vehicles.
- AutoTrader — Worth the higher cost if your car needs maximum national reach and you expect to sell in one listing window. Becomes expensive fast on slower-moving cars.
- Facebook Marketplace / Gumtree — Free to list, but only genuinely cheap if your car sells quickly to a local buyer without the scam overhead. Best as a secondary channel, not a primary one.
- eBay Motors — 12.8% commission makes it the most expensive option for most mid-range private sales. Only makes sense on very cheap cars or genuinely auction-worthy vehicles.
The short version: MotorBoard's flat fee is the cheapest way to sell a quality listing on a dedicated car platform in the UK in 2026. If you're in the first 500, you can test it free before committing to anything.
Start your free listing on MotorBoard →
Frequently Asked Questions
How much does it cost to sell a car on AutoTrader UK?
AutoTrader charges private sellers based on the car's asking price: from £37 (under £1,000) up to £80 (over £15,000) per 2-week listing window. If your car doesn't sell in the window, you pay the same fee again to relist. A car priced at £8,000 that takes 6 weeks to sell costs £207 in AutoTrader listing fees across three 2-week windows.
What is the cheapest way to sell a car online in the UK?
Facebook Marketplace and Gumtree are free to list on, but both attract high volumes of scam enquiries and time-wasters. For a low-cost sale with serious buyers, MotorBoard charges £36 for a 6-week listing with no commission. The first 500 sellers also get a free 14-day trial — genuinely zero cost to test the platform before committing.
Does eBay charge a fee to sell a car in the UK?
Yes. eBay charges a £14.99 listing fee plus a 12.8% final value fee on the sale price, capped at £497. On a £5,000 car that works out to approximately £655 in total fees. On a £10,000 car: capped at £511.99 total. eBay's commission makes it one of the most expensive options for mid-range cars despite the low headline listing fee.
Are there hidden fees when selling a car online?
Yes — most platforms don't advertise the full picture upfront. Hidden costs include relist fees (AutoTrader charges per listing window, so a slow-selling car costs multiples of the headline fee), premium placement sold separately, and the time cost of filtering scam enquiries on free platforms. An HPI check (£14–£20) is another cost serious sellers should budget for.
Is it cheaper to sell on MotorBoard than AutoTrader?
Yes, in almost every scenario. MotorBoard charges £36 for 6 weeks (or £60 until sold) with no relist fees and no commission. AutoTrader charges £37–£80 per 2-week window — if your car takes 3 windows to sell, you've paid 3× the headline fee. For a car priced at £8,000 that takes 8 weeks to sell: £276 on AutoTrader vs. £36 on MotorBoard.
Do I need to pay for photos when listing a car online?
On MotorBoard, up to 20 photos and 1 video are included in every listing at no extra cost. On AutoTrader, photo allowances vary by plan and premium photo packages are an optional upsell. On Facebook Marketplace and Gumtree, photos are free to upload but there's no standardised presentation. The platforms that charge for photo upgrades are essentially upselling something that should be standard.