Should I buy the van or lease it?
Updated 17 September 2026
This is a complete worked Executive Decision Brief for a first significant asset — a van, though the logic holds for any equipment: whether to buy outright or lease. It shows the board recommending lease while utilisation is unproven, the point at which buying wins, and the CFO's dissent for owning kept on the record. Decision support, not financial or tax advice.
Cerno is a private AI boardroom that runs consequential decisions through a structured process and returns a brief like the one below. This example is illustrative; your own would reflect your cash, your mileage and how long you've been trading. The tax treatment of each option is a matter for your accountant.
Lease, on the shortest term with a sensible mileage allowance, for the first year. Buy when a year's real mileage and downtime say the business is stable and the van is used as much as you think — and not before.
- ›The business has been trading nine months; this would be its first vehicle.
- ›Buying outright would use roughly half of the available cash.
- ›Projected mileage is an estimate; there is no history to check it against.
- ›The projected mileage and utilisation are roughly right.
- ›The business will still need this size of vehicle in two years.
- ›Cash used to buy the van would not be needed for something more urgent.
Get lease quotes on the shortest term available with a mileage allowance a fifth above your estimate — the estimate is optimistic.
Ask your accountant about the tax treatment of each option for your situation. Let it inform the terms, not the decision.
Log real mileage and days off the road. That's the evidence for the buy decision in a year.
Re-run this: if mileage matched, downtime was low and cash is comfortable, buy. If not, you've learned that cheaply.
How this brief was reached
The advisors formed independent positions, a Devil's Advocate challenged the leading one, and the vote landed 3–2 for leasing first — with two dissents that are both, in their own terms, correct.
The CFO is right about the arithmetic: over the life of a vehicle, owning is cheaper. The majority's answer was that arithmetic over five years assumes you know what the five years look like, and a business nine months old does not. Buying uses half the available cash on an asset sized to a forecast; if the forecast is wrong in either direction — less mileage than expected, or a need for something bigger — the mistake is expensive to unwind. That's the shape of a one-way door, and the lease is the smaller one: dearer per month, cheap to walk away from.
The Entrepreneur's dissent is about how ownership changes how you treat a tool, and the board didn't dismiss it; it just judged that a year of being slightly careful is a small price for a year of evidence.
Confidence is moderate. The board is confident that leasing first is the safer sequence for a business this young; it's less sure how far the mileage estimate is from reality, which is the whole reason for the sequence.
What the board weighed
Half the cash is a lot of cash. The van isn't the only thing the business might need money for in the next year, and the board's pre-mortem on "we bought the van and regretted it" produced one failure mode above all others: not the van, but the thing the business couldn't afford because of the van. Leasing keeps the cash where it can respond to whatever comes.
Nine months is a forecast, not a record. Every number in the buy case — mileage, utilisation, how long the business needs this vehicle — is a projection by an owner who has never run one. The board reached for the base rate: businesses like this one, in their first year with a first vehicle, and how often their usage matched their plan. There's no published figure, but the owner can ask three people in the trade what their first year's mileage actually was against what they expected. The answer is usually not "the same".
The lease premium is the price of information. Leasing costs more per month. What it buys is a year of real numbers, at the end of which the buy decision is made against evidence. Whether that's expensive depends on how likely the evidence is to change the answer — and for a first vehicle, the board judged that likelihood high.
Tax is a term, not a verdict. The tax treatment of buying versus leasing is real and it differs. The board's view was that it should be checked with an accountant once the shape of the decision is clear, and should influence the terms rather than decide between fundamentally different commitments.
If your situation differs
If you've run vehicles in this trade before — a previous business, or years as an employee with a van — the biggest assumption is answered by your own record, and the CFO's dissent is probably the majority. Buy, and buy the size you know you need.
If cash is comfortable and buying would use a small fraction of it, the cost of being wrong drops and buying becomes reasonable even without the year's evidence — though the mileage log is still worth keeping.
If the vehicle needs significant modification — racking, refrigeration, signwriting — that investment is lost at the end of a lease, and the calculation shifts towards owning or towards a longer lease with the kit-out built in.
The frameworks behind it
This decision turns on reversibility — the lease is the smaller door while the forecast is unproven — and on reference-class forecasting: a first-year owner's mileage estimate is exactly the kind of inside-view number that needs a base rate beside it.
Weighing a vehicle or a piece of kit? Put your version through the boardroom and get a brief like this with your cash and your real usage.
Run this decision in CernoFrequently asked
Isn't buying always cheaper in the long run?
Usually, if you keep the vehicle for its full life and use it as much as you planned. The board's point is that a business in its first year doesn't yet know either of those things. Leasing costs more per month and buys you the right to be wrong about your own forecast. Whether that's worth it depends on how sure you are, not on the arithmetic alone.
What about the tax treatment?
It differs between buying, hire purchase and leasing, and it depends on your circumstances. The brief deliberately leaves it out: it's a factor to check with your accountant once you've decided the shape of the decision, not the thing that should decide it. This is decision support, not financial or tax advice.
When does buying clearly win?
When you've run a vehicle for a year or two and know your real mileage, your real downtime and that the business is stable. At that point you're buying against evidence rather than a plan, and the CFO's dissent in this brief becomes the recommendation.