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Guide

How much does a car rental website cost?

The honest answer is that the fleet has almost nothing to do with it, and whether your rental system can be reached has almost everything. This is what actually moves the number, written in 2026.

The short answer.

A car rental website is priced by what happens after a customer picks a date. A site that shows your fleet and takes an enquiry is a small job. A site that reads live availability, quotes a real rate, takes a deposit and confirms a booking is a different job with a different number, and the gap between them is not design.

The four levels below are the ones worth pricing separately. What they cost from OwnerDeck is published further down, and what pushes any of them up or down is the section in the middle.

Every figure on this page is a price OwnerDeck publishes. It is not a survey of what other builders charge, and quotes elsewhere will differ, sometimes by a lot.

Four levels, and what separates them.

Level 1

Fleet website

Vehicle pages, rates, locations, contact and WhatsApp, an enquiry form. No live availability: the customer asks, you answer.

From OwnerDeck: €790 to build, €79 a month, on Site.

  • A page per vehicle or class, with its own rates
  • Locations, opening hours and collection points
  • Enquiry capture that reaches you somewhere you will see it
  • Fast on a phone, which is where the enquiry comes from

Level 2

Availability-aware website

The site knows your dates and rate rules. It can tell someone what a week in August costs for a compact automatic without you being awake.

This level sits between two published plans and is quoted against your rate rules. We would rather price it after seeing them than post a bracket you cannot hold us to.

  • Date and location selection
  • Rate logic: season, duration, class
  • Extras priced rather than listed
  • Complete enquiries, with the quote already attached

Level 3

Booking website

The customer books rather than asks. Availability is read from your rental system, and the booking, deposit and confirmation happen without a phone call.

From OwnerDeck: €2,990 to build, €449 a month, on Full Deck.

  • Live availability read from your existing system
  • Booking capture with driver, dates and vehicle
  • Deposits or payment where you take them
  • Confirmations out, and one arrivals list in

Level 4

Booking plus customer communication

Everything above, and the messaging answered too: WhatsApp and Instagram handled from the same availability and the same rules.

From OwnerDeck: €2,990 to build, €449 a month, on Full Deck.

  • An assistant answering from live availability
  • Replies in the language the question arrived in
  • A stated line where it hands the conversation to you
  • Follow-ups where your system supports them

What actually changes the price.

Ranked by how much each one moves a quote, which is not the order most owners expect. If you read one part of this page, read this one.

Changes the number most
Whether your rental system can be reached
The single biggest unknown. A system with an API is a few days of work. A system that exports nightly is workable with a stated lag. A system that exposes nothing means live availability is off the table entirely, and no amount of budget fixes it. This gets checked before anything is quoted, because it decides what is worth building.
Live availability
Every quote stops being a static number and becomes a query with a failure mode. What the page shows while the system is slow, what it shows when the system is down, and what happens to a booking made in the seconds before a car went out: three questions a brochure site never has to answer.
Seasonal and tiered pricing
One flat daily rate is one rule. Season, duration band, vehicle class, minimum days and a long-let discount interact, and the combinations are where the testing time goes. If your rates live in a spreadsheet with exceptions in your head, that spreadsheet is most of the build.
Taking money online
A payment or a deposit brings a provider, a refund and release flow, failed payments, chargebacks and a record you can reconcile. Taking a booking without payment is materially cheaper than taking one with it.
Changes it noticeably
Multiple locations
Availability per location, one-way rules and fees, different hours per site. Two offices is not twice one office, but it is not one either.
More than one language
Not the translation, the upkeep. Every rate change, every new vehicle and every policy edit now happens more than once, unless the system is built so it does not.
Extras and add-ons
A child seat, a second driver, an out-of-hours collection. Each is a small product with its own price, its own availability and its own line on the confirmation.
Delivery and collection zones
Geography and fees. Hotel delivery inside a radius, airport at a fixed charge, anywhere else on request.
Automated customer messaging
The assistant is not the expensive part. Writing down the rules it answers from, accurately enough to be trusted, is.
Changes it least
How many cars you have
Twelve vehicles or a hundred and twenty is the same template and the same logic. Fleet size is the thing owners expect to drive the price and it barely registers.
How the design looks
Real work, and bounded work. A distinctive site is not meaningfully dearer than a plain one, because the time sits in what happens after someone picks a date.
Ordinary content pages
About, terms, contact, an FAQ. Necessary, quick, and not where a quote goes wrong.

What you get at each level.

What each level of car rental website includes
LevelFleet pagesLive availabilityBookingPaymentsAssistant
Fleet websiteIncludedNot includedEnquiryNot includedNot included
Availability-awareIncludedIncludedEnquiryOptionalNot included
Booking websiteIncludedIncludedIncludedIncludedOptional
Booking plus messagingIncludedIncludedIncludedIncludedIncluded
A real example

Voyage Rent A Car already had a rental operation.

So nothing was rebuilt. The customer-facing side was connected around the information the business was already using, rather than a second fleet database that would have drifted out of step within a week. That decision is what kept it in the bracket it was in.

See the Voyage implementation

Median reply time
1.9sec
Answered without a person
87%
Conversations never escalated
63%

Three plans, all published.

See what each plan includes
Site
€790 and €79 a month
Deck
€1,990 and €299 a month
Full Deck
€2,990 and €449 a month

Excluding VAT. You pay 40% to start and 60% on launch, and the monthly begins on launch day. One month’s notice to stop.

Want the number for your operation?

Tell us what rental system you run and how your rates are structured. Those two answers decide most of this, and we will give you a figure rather than a bracket.

Or email [email protected]