The True Cost of Buying a Car at Auction in South Africa

Why the bid price misleads first-time buyers

At a dealer or in a private sale, the advertised price is close to what you pay. At auction it isn't. The hammer price is the starting point, not the total. Every auction house adds costs on top — and most of those costs are a percentage of your bid, which means they scale with the vehicle price.

A buyer who wins a R150,000 bid and budgets R150,000 is going to be short. The same buyer who works backwards from a R150,000 total budget will know their maximum bid before the auction starts.

Every cost, broken down

Worked examples at three price points

Using a 10% buyer's commission (common at most major SA auction houses) and conservative estimates for post-auction costs:

How to work backwards from your budget

The correct approach is to start with what you can actually spend — your total budget — and subtract every cost to find your maximum bid.

Example: your total budget is R200,000. Dividing by 1.28 gives a maximum bid of R156,250. Round down to R155,000 and that is your hard ceiling. Do not exceed it regardless of what happens in the room.

If the auction house charges 15% commission instead of 10%, adjust the divisor to 1.33. If they charge 5%, use 1.23. The formula is the same — the divisor changes.

VAT — the cost most people underestimate

VAT at 15% is the single largest add-on at auction and the one that surprises first-time buyers most. At a private sale between two individuals, no VAT applies. At an auction — which is a VAT-registered business transaction — VAT is mandatory and is added to your bid.

On a R200,000 hammer price, VAT alone is R30,000. This is not negotiable and is not included in the bid price you place.

Buyer's commission — read the fine print

Commission is how auction houses make their money. It is charged on top of the hammer price and is typically 5–15% depending on the house and the vehicle category. Some auction houses charge VAT on the commission as well — meaning the commission itself attracts a further 15% on top.

Read the full terms before you register. The commission percentage must be disclosed before the auction begins, and is usually listed in the auction catalogue. If it isn't clearly stated, ask before bidding.

The voetstoots contingency

All auction vehicles are sold voetstoots — as is, with no warranty. Any fault you discover after the hammer falls is your problem and your cost. Even a DEKRA report or auctioneer's condition notes carry limited liability.

Budget a minimum repair contingency on every auction purchase. On an older or higher-mileage vehicle, R5,000–R10,000 is not excessive. On a late-model fleet vehicle in good condition, R2,000 may be sufficient. The point is to have a number in your budget before you bid, not to discover the cost after.

Comparing auction to dealer and private sale

The true cost comparison is not hammer price vs dealer price. It is total auction cost vs total dealer or private sale cost.

• Dealer purchase: advertised price is close to true cost. VAT is included in the price. No buyer's commission. CPA warranty on vehicles under R100,000 and under 200,000km. Negotiation room exists but is limited.
• Private sale: no VAT between private individuals. No commission. No warranty. Voetstoots applies. Scam risk is higher — run First Check before any private purchase.
• Auction: potential for below-market hammer prices, but 20–30% in fees brings the true cost back towards market. The advantage is real for prepared buyers who inspect thoroughly and set firm limits. It evaporates for buyers who overbid or miss faults.