What occupancy rate should you aim for to make a rental fleet profitable?

Flotly Team - published 19 April 2026 · 5 min read

At what occupancy rate does your fleet actually make money? The formula to calculate your own threshold, and the classic traps when reading the figure.

Occupancy rate is the most watched indicator in vehicle rental. It is also the most misread.

This article answers three questions: what a good rate is, why 100% is a trap, and how to improve it without wrecking your margin.

The simple definition

Occupancy rate = days rented / days available, over a given period. If a vehicle is rented for 22 days in a month, its rate is 22 / 30 = 73%.

Calculate your threshold instead of copying someone else’s

You will read profitability ranges by vehicle type everywhere. We won’t publish any: we have no panel of rental companies to establish them, and an average threshold tells you nothing about your rent, your financing or your local market. Yours can be calculated, and it only takes three numbers.

• F = your fixed monthly costs per vehicle: financing or depreciation, insurance, taxes, share of rent and overheads.
• P = your average daily rate actually collected, after discounts and free days. Not your advertised rate.
• V = your variable cost per rented day: fuel, cleaning, wear, payment and referral commissions.

Your monthly occupancy threshold = F ÷ (30 × (P − V)). As a worked example: if a vehicle costs you €600 a month in fixed costs, is rented on average at €55 a day and costs you €15 per rented day, the threshold is 600 ÷ (30 × 40) = 50%. Your numbers drive the result, not ours.

Redo the calculation by category: a B2B van on a long package rents less often but at a higher margin, a motorbike works over a short season, an e-bike has low fixed costs. These structural differences change the threshold far more than any market average.

Why aiming for 100% is a trap

A fleet that is almost never available is not a sign of good health: it is often the symptom of a price that is too low. You fill your vehicles while leaving money on the table, and you wear them out faster. The test is simple: raise the price of one category and see whether revenue per available day goes up while occupancy goes down. If it does, you were underpriced.

Conversely, persistently low occupancy doesn’t always mean demand is lacking. It is often down to the visibility of your catalogue, friction in the booking flow, or a price out of line with the local market. Check these three points before drawing conclusions.

How to improve it intelligently

Three levers to test, each with its own measure. None comes with a guaranteed percentage: the difference depends on your local demand, your fleet and your starting point.

1. Variable pricing: adjust your rates by period and by duration rather than applying a single price all year round. Measure: revenue per available day, compared over two periods with equivalent seasonality.
2. Public booking flow: an indexed site where your customers book on their own, 24/7, instead of going through the phone. Measure: number of incoming bookings per channel, recorded before and after going live.
3. Loyalty programme: reward the 3rd, 5th and 10th rental to bring customers back with no extra acquisition cost. Measure: customer return rate at 6 and 12 months, not the number of sign-ups.

Measuring correctly is half the job

Many rental companies calculate the rate by hand, at the end of the month, from a diary. That isn’t measuring, it is noting what already happened. With a real-time dashboard, you see the rate by vehicle, by branch and by season, and you can correct course before the month is lost.