Calculate the first-year cost, not only the purchase price
Add transaction costs, legal fees, insurance, initial servicing, overdue maintenance, tyres, brakes, likely repairs, and a contingency reserve. Then compare vehicles using the total expected cost.
Transaction and legal costs
- Tax, transfer duty, registration, licensing, or title fees
- Dealer administration, documentation, or delivery charges
- Required inspection or emissions testing
- Insurance before the vehicle can legally be driven
- Finance establishment fees and interest
Immediate maintenance costs
A seller may describe a vehicle as recently serviced while major age- or mileage-based work remains due.
- Oil, filters, fluids, spark plugs, belts, and scheduled services
- Tyres, alignment, and wheel damage
- Brake pads, discs, fluid, and parking brake work
- Battery and charging-system issues
- Air-conditioning, heating, and electrical repairs
Costs hidden by vague listing language
Listing phrase
“Small oil leak, easy fix.”The source, severity, labour, and resulting damage are unknown.
Listing phrase
“Tyres still have life.”Tread depth, age, cracking, uneven wear, and replacement requirements are missing.
Do not assign a repair cost from the phrase alone. Request evidence and obtain a professional estimate.
Ownership costs after purchase
- Fuel or electricity consumption
- Insurance category and excess
- Routine servicing and specialist labour
- Parts availability and delivery time
- Depreciation and resale demand
- Parking, tolls, storage, or local road charges
Build a sensible cost buffer
A buffer is not a prediction that the car will fail. It protects the buyer from normal uncertainty in a used vehicle.
- List confirmed costs from documents and inspection.
- List likely near-term maintenance by age and mileage.
- Obtain estimates for unresolved symptoms.
- Add transaction and insurance costs.
- Keep a separate contingency reserve.
Check a real listing before you contact the seller
ScanBeforeBuy reviews the wording for hidden risks, missing information, possible future cost areas, seller questions, and negotiation points.
Scan a used-car listingFrequently asked questions
What is the most commonly missed used-car cost?
Immediate maintenance is often overlooked, especially tyres, brakes, fluids, batteries, and scheduled work due soon after purchase.
Should I negotiate for every future maintenance item?
Normal maintenance is part of ownership, but overdue work and misleading condition claims can be relevant to the price.
How large should my repair reserve be?
It depends on the vehicle's value, age, complexity, condition, and parts costs. The reserve should be large enough that one predictable repair does not make the vehicle unaffordable.
Can ScanBeforeBuy calculate exact repair costs?
No. It can identify possible cost areas from the listing text, but exact costs require diagnosis, local labour rates, parts prices, and inspection.
Related used-car guides
This page provides general buyer information and is not legal, financial, mechanical, or jurisdiction-specific advice. Vehicle laws, transfer requirements, and consumer protections vary by location. Verify local rules and arrange appropriate professional checks before purchasing.