Tax risks of shared cars and pool cars.

Colleagues help each other out. Someone "just" takes a van for a house move, the pool car stays outside someone's door for a night, a lease driver lends their car out for a day. That is practical and often desirable too. The tax side, however, is rarely arranged properly, usually because people do not know exactly how the rules work. This article explains how they work, where it goes wrong in practice, what it can cost and how to arrange car sharing so that it stays easy and is watertight for tax.

How the rules work

The core is simple. If an employee has a company car "at their disposal", the Dutch Tax Administration assumes they can also use that car privately. A taxable benefit is then due, unless the employer convincingly shows that no more than 500 kilometres were driven privately in it on an annual basis. The burden of proof explicitly lies with the employer (Article 13bis of the Dutch Wage Tax Act 1964). In February 2025 the Dutch Tax Administration published an extensive position on the use of shared cars and pool cars by employees (KG:204:2025:3). Six rules follow from it.

• "At their disposal" is broad. A car has been made available if the employee can decide for themselves what they use it for. Who owns it does not matter: a leased car, a pool car or a car used by several colleagues all count. A ban on private use alone is not enough: the employee must actually be unable to use it privately, or the employer must demonstrably supervise it. Only with a specific assignment that the employer checks, such as a particular customer trip, is there no making available.
• The 500 kilometres is an annual limit, and is recalculated pro rata. If someone uses a pool car for one day, the private allowance is 1/365th of that: 1.4 kilometres. For a month it is 42.5 kilometres. With shared use the allowance is therefore almost nil, and the employer must be able to show, per user and per day, who had the car and for what.
• Commuting is business for the taxable benefit, but not harmless. A pool car that goes home is at the employee's disposal outside working hours. In 2019 the Dutch Supreme Court ruled that a van parked outside an employee's home every day had been made available to them (ECLI:NL:HR:2019:361). For the VAT correction, moreover, commuting does count as private use.
• Proof can be given in two ways. With a watertight trip log: per trip the date, starting and final odometer reading, addresses, the nature of the trip and the reason for any detour, and for a pool car also who drove. Or with a genuine ban on private use: in writing, with sanctions, and with supervision that is recorded and enforced in case of a breach. The Dutch Tax Administration's guide on private use of cars gives as an example a fine of €1 per kilometre and €300 per breach.
• With multiple users, the taxable benefit is divided. If three colleagues drive a pool car without a watertight log, the employer divides the full taxable benefit among those three. In the Dutch Tax Administration's worked example, a car with a list price of €45,000 gives a taxable benefit of €9,900 per year (22%), divided in proportion to use.
• A declaration of no private use does not cover everything. That declaration only applies to the car and the employee for which it was issued, not to a pool car or a borrowed car. And if the employer knows, or could reasonably know, that private driving does take place after all, the additional assessment is still imposed on the employer.

The Dutch Tax Administration's position makes one thing clear: when cars are shared, the employer must "have insight into the users and the nature of the use". Without that insight there is no proof, and without proof there is a taxable benefit.

Where it goes wrong in practice

Most employers have their regular lease cars well arranged: taxable benefit on the payslip, done. The problem lies in everything that happens around them and is not recorded. Five situations keep coming back.

• A lease driver lends their car to a colleague for a weekend. The colleague then has the car at their disposal. The lease driver pays the taxable benefit, the colleague does not, even though they drive it privately. Afterwards nobody knows who drove when, and the lease driver's taxable benefit does not cover the colleague.
• The pool car goes home in the evening. Outside working hours it is parked outside the door, and the colleague can use it privately. There is no record of who had the car, for how long, and whether it was used privately.
• The pool car is "just" used privately, for a house move or a weekend. For one day of use the private limit is 1.4 kilometres, and it is exceeded straight away. Without records, the employer cannot apply the 500-kilometre test.
• The trip log is updated afterwards, or is missing for the pool car. Then the log has no evidential value: the Dutch Tax Administration compares it with fuel receipts, MOT (APK) readings and traffic fines. With a pool car, moreover, nobody feels they own the administration.
• Someone has a declaration of no private use for their own car, but also drives the pool car. The declaration does not cover the pool car; the employer must substantiate that use itself. Yet employers often assume the declaration covers everything.

What these situations have in common: there is no ill will. It is a practical business where colleagues help each other. But the Dutch Tax Administration does not assess intentions, only what can be proven.

That it is not a paper risk became clear in July 2026. A sample check by the Dutch Tax Administration covering 2022 and 2023 shows that at 17% of businesses with a correction to their income tax, private use of the car was the cause, and that trip logs in practice are "often incomplete, drawn up afterwards or not watertight" (Accountancy Vanmorgen, 7 July 2026). It is an active point of audit.

What it can cost

If the employer cannot complete the proof, the Dutch Tax Administration imposes an additional payroll tax assessment. That can go back up to five years, and the employer receives the assessment: they are the withholding agent. Only with a valid declaration of no private use does the bill go to the employee, and even then not if the employer knew or could have known that private driving took place.

The figures in the table are an indication; the exact outcome depends on the rate, whether the employer can recover the additional assessment and whether the inspector opts for the final levy. But the order of magnitude is right: with an additional assessment via the final levy, the amount per car over five years can approach that car's list price. Tax specialists at Moore MKW explicitly warn about this. With a fleet of ten pool cars, it quickly runs to several hundred thousand euros.

Three things make it extra unpleasant:

• The bill often cannot be passed on. If the Dutch Tax Administration imposes the additional assessment as a final levy, the employer may not recover it from the employee. The District Court of Limburg ruled this in 2023 (Salaris Vanmorgen): the employer knew about the private use and could have asked for a log itself.
• A reconstruction afterwards does not work. Judges dismiss a trip log drawn up afterwards as soon as one objective fact does not match: a traffic fine in another place, or an odometer reading at the garage that does not add up (Civra, 2024).
• VAT is involved too. In addition to payroll tax, the employer makes a VAT correction for private use, and for that commuting does count as private. For pool cars without records, that correction cannot be substantiated.

On top of that comes the time of a tax audit, the unrest among employees who suddenly see a correction on their payslip, and the discussion between colleagues about who was actually responsible.

What case law shows

The Dutch Tax Administration does not publish the names of companies that received an additional assessment, but case law shows clearly how it turns out. Time and again, it concerns ordinary Dutch employers who thought they had arranged things reasonably well.

• A home care organisation (Supreme Court, 2017). Employees had company cars all day for client visits. Private use was banned in writing, with a €250 fine per breach, but there was no mileage administration and supervision was very limited. The additional assessment over five years, with a penalty for gross negligence, was upheld: the ban on paper was not enough.
• A landscaping company (Supreme Court, 2019). An employee took the van home after work; the van was parked outside his door every day. The car was deemed to have been made available, and a taxable benefit was due.
• An employer with foreign employees (district court, 2026). Employees had the keys to company cars. There was a GPS system and a rental scheme for private use, but the employer only checked when business kilometres deviated by more than 10%. The additional assessment was upheld: the schemes looked good, but how they were carried out in practice remained unclear.
• A holding company with a van via a subsidiary (district court, 2024). There was a ban on private use, but supervision was unclear: no GPS, no clear sanctions policy, no trip log. The additional assessment was justified. The requested 50% penalty for gross negligence failed only because intent was not proven.
• An employee with a declaration of no private use (district court, 2023). The trip log lacked departure and arrival addresses. The result was an additional assessment of €5,312 for one year, plus a default penalty and €460 in tax interest, for the employee themselves.
• A married couple at the same employer (Court of Appeal of The Hague, 2022). Two colleagues shared one car for their joint commute. The taxable benefit was justified, but had to be divided between the two. The judges called the situation distressing and asked the ministry for leniency.

What stands out: in almost every case there was a scheme, a ban or a good intention. What was missing was the proof that the scheme worked in practice: who had the car, when, for what, and who checked it. With shared use, you can only answer those questions if it is recorded at the moment itself.

What you as an employer want to have in place

A clear checklist follows from the rules and the case law. It is not complicated, but it has to be done consistently, every day, for every car.

• A written scheme for pool cars and for lending cars to each other: what is allowed, what is not, and what the sanction is for a breach.
• Recorded per car and per day: who had the car, from when to when, and for what: business, commuting or private.
• For private use, a personal contribution or a pro rata taxable benefit that is actually processed in payroll.
• A watertight trip log per car, kept at the moment itself and not afterwards, with starting and final odometer reading, addresses and the nature of the trip.
• Demonstrable supervision: someone checks the records, documents that and addresses people when something is wrong.
• Clarity about lent-out lease cars: the colleague who borrows is registered, so the taxable benefit does not silently stay with the wrong person.
• An administration that is kept for five years and can be produced straight away during a tax audit.

In practice this rarely works with Excel lists, a key cabinet at reception and good intentions. The first few weeks go well, then it fades. And that is exactly where the court rejected the cases above.

How Klicq helps: sharing is allowed, via the platform

Klicq is built on the point that matters for tax. Every time a company car is shared, lent or swapped, it goes through the platform and is recorded. Not as extra administration, but as the way colleagues arrange a car among themselves.

• Every shared use is recorded. Pick-up and return, the odometer readings, business or private, and for a business trip the destination. Who had the car, from when to when and for what: exactly the data the Dutch Tax Administration names as a condition in its position on shared cars.
• The informal arrangement reaches the platform too. With a direct request, a colleague asks the lease driver for a car, even if that car was not "officially" available. That way the lending moments that currently bypass the administration disappear.
• You can make the use of Klicq a condition. Lending or swapping is allowed, but only via the platform. That is the "genuine supervision" the court asks for, without employees having to take many extra steps.
• The taxable benefit ends up with the right person. Because it is known per day who had which car, payroll can apply the taxable benefit pro rata or process a personal contribution. No surprises afterwards for the lease driver who lent out their car.
• Proof for five years, in one place. During a tax audit there is an overview per car and per employee, instead of a reconstruction from calendars and fuel receipts.

What Klicq does not do: the platform does not replace a per-kilometre trip log or tax advice. A lease driver's own trips in their own car fall outside Klicq; they stay in their normal trip log. Klicq arranges the part that is hardly arranged properly anywhere today: shared use. Together with a normal trip log, or a genuine ban on private use, that provides the proof the law requires.

And just as important: it makes sharing easier rather than harder. Companies that now discourage car sharing out of caution can instead start encouraging it, with fewer cars, lower costs and a story that is watertight for tax.

A good first step

Go through with the fleet manager and the payroll team where car sharing currently bypasses the administration. Half an hour is usually enough to get a clear picture. Klicq is happy to show you how the platform solves this in practice, and to discuss what a start looks like, straight away with the whole fleet.

Sources

• Kennisgroep loonheffing, KG:204:2025:3 Gebruik deelauto's door werknemers (Belastingdienst, februari 2025, laatst bijgewerkt april 2026)
• Handreiking privégebruik auto (Belastingdienst)
• Privégebruik auto en rittenregistratie (Belastingdienst)
• Belastingdienst: gebrekkige rittenregistratie blijft veelvoorkomende oorzaak van fiscale correcties (Accountancy Vanmorgen, 7 juli 2026)
• Fiscale aandachtspunten bij de (bestel)auto van de zaak (Moore MKW, februari 2026)
• Werknemers mogen auto's werkgever meenemen (4-Vision, juni 2026)
• Naheffing wegens privégebruik auto niet doorberekenen aan werknemer (Salaris Vanmorgen, 2023)
• Case law: Supreme Court 2 June 2017, Supreme Court 15 March 2019 (ECLI:NL:HR:2019:361), Court of Appeal of The Hague 13 January 2022