Most travel companies answer "how do you make money" with a sentence about being free to use. That is technically true and practically useless, because "free to you" usually means "paid by someone whose interests are not identical to yours". This is the long answer, including the awkward parts.
One qualification governs everything below. Zeptotravel is new: no commission has been paid to us, no consolidator margin earned, no service fee charged. What follows is a description of the model — how agency revenue works, what each product typically pays, and which way that pulls — not a report of revenue received. Where a sentence says car rental pays more than published air, it is describing how this industry pays agencies generally, which is checkable against any trade source; it is not a statement about our own books. We are publishing it now, before the first booking, precisely because an incentive structure disclosed in advance is worth something and one disclosed after the fact is worth very little.
Supplier commission, and how it varies by vertical
Commission is a percentage of the booking value paid to us by the supplier after the travel is fulfilled. It comes out of the supplier's own margin — it is not a surcharge on your price, and the same car booked direct at the same rate does not get cheaper because no agency is involved. What matters is that the rate is wildly uneven across the two things we sell, and the unevenness runs in one direction.
Car rental pays the most, and it is now the only product on the desk that pays commission at all. Vehicle rental is an inventory-rich, perishable product where suppliers compete hard for distribution, and commission in the high single digits to mid teens as a percentage is the normal shape of that market. Rates vary by supplier, rate type and volume, and prepaid rates frequently pay differently from pay-at-counter ones.
Published air fares typically pay little or nothing. US carriers largely removed base commission on domestic published fares decades ago. Some international carriers and markets still pay a percentage, but as a working assumption a standard published economy ticket sold at the airline's own fare generates close to zero commission for the agency selling it. This matters more than anything else on this page, and the bias section explains why.
So the gap is not marginal. On the same trip, a week's car hire can earn us more than the long-haul tickets that took four times the work to price, issue and service. That asymmetry is the single most important thing to understand about how any travel agency — this one included — is paid, because it is what shapes the suggestion you get when an advisor says "while I have you, shall I look at the car?"
It is worth being blunt about what a two-product catalogue does to that picture. An agency selling accommodation, rail and activities alongside air and ground draws commission from several directions, and no single product carries the weight. We sell two things, only one of which pays commission at all, so the entire counterweight to a labour-intensive, low-paying air business is the car. We are not going to pretend that makes us more neutral. It makes the incentive narrower and sharper, and it means the specific upsells worth watching for are few enough to name: a longer hire than the trip needs, a vehicle class above what the party and the bags require, and a prepaid rate chosen over pay-at-counter. Ask about any of the three and you will get the reasoning, not a deflection.
Commission is also contingent. Cancel a rental and it is normally reversed; no-show and it is reversed; if a supplier fails to pay, we absorb it. That means our interest is aligned with the trip actually happening as planned, which is at least a useful alignment.
Consolidator margin on negotiated air fares
The second source applies only to air, and only to fares that are not the airline's published fare. A consolidator holds a contract with a carrier permitting it to sell certain routes, cabins and departure windows at a net rate below the public price, usually in exchange for volume and usually with conditions: restricted routings, limited or no changes, no online display, sometimes no mileage accrual. It sells at that net rate to an accredited agency, and the agency's revenue is the difference between the net rate and the price it quotes you.
Two consequences follow. The margin sits inside the fare, not beside it — there is no separate line on your confirmation to point at, which is a structural feature of the product rather than something hidden. And a negotiated fare can be simultaneously cheaper for you and more profitable for us than a published one: the single place where the incentive and your interest point the same way, and the reason phone-only fares exist at all.
The trade-off is in the rules. Negotiated fares often carry harsher change and refund conditions than the published fare for the same seat. An advisor should tell you which kind you are being quoted, and what it costs to change it, before you pay.
Our own service fees
The third source is the only one you pay directly. Where a service fee applies it is stated verbally before you authorise payment and itemised on your confirmation, always identified as a Zeptotravel fee rather than a supplier charge. Post-ticketing work — voluntary changes, name corrections, refund processing, seat and baggage add-ons, complex reissues — carries the published rates in our post-ticketing service fee schedule.
Fees exist because labour and commission are inversely related. The product that takes the most work to sell and service correctly — the published air ticket — pays the least. A refund on a cancelled international itinerary can involve a waiver request, a supplier escalation, a reissue and weeks of follow-up. Without a fee, that work would be subsidised by pushing the products that do pay, which is precisely the bias this page is about. A published, named fee is the less distorting option.
Supplier penalties are not our fees. A carrier change penalty, a rental no-show charge or a late-return fee belongs to the supplier and is passed through unchanged. You should always be told which is which.
Where we earn nothing at all
Quoting, comparing and explaining are free. There is no charge to ask us to price an itinerary, read you a fare rule, check a baggage allowance, explain whether a rental waiver duplicates your card's coverage, or tell you your options during a disruption on a booking you did not make with us. We earn nothing on a 24-hour risk-free cancellation, nothing on a call that ends with us telling you a public fare is cheaper, and nothing on the schedule-change monitoring and rebooking that follows an involuntary change.
We also do not sell personal data, earn from advertising on this site, or take payment from suppliers to appear in the editorial guidance across these pages. Where a commercial arrangement affects placement or ranking, it is labelled where it appears — that rule is part of our editorial standards.
How this could bias our advice, and what we do about it
Set the three sources side by side and the risk is obvious. Air pays least and takes the most work; ground pays most. The structurally profitable advice is therefore: extend the rental by a day, take the bigger vehicle class, book prepaid rather than pay-at-counter. Some of that is genuinely right for some travellers. All of it happens to pay us more. And with two products rather than a catalogue, that pull is not diluted — it points at one line of one booking, which makes the controls below matter more, not less.
We will not resolve that by describing our internal compensation arrangements, because you have no way to audit a claim like that and it would be worth as much as any other unverifiable assertion. What we can offer instead are controls you can observe on the call and check on your confirmation:
- The total is quoted before the work begins. You hear the whole number — fare or rate, taxes, supplier charges and any service fee — before you authorise anything, so an upsell has to be argued on its merits rather than absorbed silently into a total.
- The fee schedule is published, not quoted case by case. Our fees are set out in advance at post-ticketing service fees. A published schedule is checkable; a fee invented per call is not.
- Every charge is attributed. Supplier penalty or Zeptotravel fee — you are told which, every time. Confusing the two is the commonest way travellers are overcharged in this industry.
- We say when a public fare beats us. If the itinerary is cheaper on a published fare you can book yourself, the advisor tells you and points you at it.
- You can ask, on any call, how we are paid on this booking. Commission, consolidator margin, service fee or nothing — you get a straight answer. That question is the most useful thing a traveller can ask any agency, and the willingness to answer it is the real test.
The five questions to ask any travel agency
Take these anywhere, not just here. An agency that answers all five comfortably is being straight with you; one that deflects is telling you something too.
- "Is this a published fare or a negotiated fare?" It determines the change and refund rules you are buying, and tells you where the agency's margin sits.
- "What is the total I will be charged, including your fee?" Not the fare, not the rate, not the estimate. The number that reaches the card.
- "Which of these charges are yours and which are the supplier's?" A change penalty and a service fee have different owners and different refundability.
- "What happens to your commission if I cancel?" The answer tells you how hard the agency will push a non-refundable rate at you.
- "Is there a cheaper way to book this that does not involve you?" Sometimes there is. Whether they say so is the whole question.
The people behind this desk are on about Zeptotravel; how the guidance here is written, reviewed and corrected is on editorial standards.
ZT
Zeptotravel Travel Desk — Consumer protection and disclosure
Our policies are written to the statutes and regulations they answer to, and cite them so you can check the source rather than take our word for it.
What this page is based on
- US DOT full-fare advertising rule and 14 CFR Part 259
- California CCPA/CPRA and comparable state privacy statutes
- FTC guidance on drip pricing and negative-option disclosure
- US DOT consumer rules (14 CFR Part 259) on refunds and disclosure
- Airline contracts of carriage and filed fare rules