Business car or private car? The tax choice

The moment you consider buying or putting a car into your business is the moment you face a tax question that costs real money: should the car be a business asset (with all costs deductible, but a tax charge for private use), or should it stay private (and you claim a fixed amount per business km)? There is no one-size-fits-all answer, but the math is simpler than it looks.

The two paths#

Option A: Business car. You buy or lease the car in the name of your business. All running costs—fuel, maintenance, insurance, road tax—are fully deductible. You also depreciate the purchase price (or the leasing costs are expensed). The catch: any time you drive the car privately, you owe income tax on the value of that private use (bijtelling). That value is set by the tax office, typically based on the car's list price.

Option B: Private car. You own the car personally. You keep no deduction for running costs. Instead, when you drive it for business, you claim a fixed mileage allowance: €0.23 per km in 2025, rising to €0.25 per km in 2026 (always check belastingdienst.nl for the current year). No bijtelling, no tax charge for private use.

The break-even calculation#

Whether a business car makes sense depends on three things: how much you drive for business, how much the car costs to run, and your marginal tax rate.

Let's sketch a worked example. Assume:

• Your car costs €30,000 (typical Dutch list price).
• Annual bijtelling rate is roughly 8–15% of list price (varies by car and year; the newer and cheaper the car, the lower). Call it 10%, so €3,000 per year.
• At a 49.5% marginal income-tax rate (the top bracket), that bijtelling costs you €1,485 in tax.
• Fuel, maintenance, insurance, and road tax together run about €4,500 per year.
• You claim it all as business expenses, saving 49.5% × €4,500 = €2,228 in tax.
• Net cost of business car: €1,485 − €2,228 = −€743 (i.e., a net saving).

Now compare the private car option:

• You drive 18,000 km for business.
• At €0.23/km, you deduct 18,000 × €0.23 = €4,140.
• Tax saving: 49.5% × €4,140 = €2,049.
• You still pay running costs yourself (€4,500), with no deduction.
• Net cost of private car: €4,500 − €2,049 = €2,451 (you bear most of the cost).

In this example, the business car wins by a margin.

But flip the scenario: if you only drive 5,000 km for business:

• Private car deduction: 5,000 × €0.23 = €1,150, saving 49.5% × €1,150 = €569.
• You still pay €4,500 running costs (personal loss).
• Net cost: €3,931.

For a business car, the bijtelling cost stays the same (€1,485), and the running-cost saving stays the same (€2,228). The calculation doesn't change much—the business car is still marginally cheaper, because the deductible costs don't vary much with km driven.

The real break-even is roughly 12,000–15,000 business km per year, depending on the car and your tax bracket. Below that, a private car and mileage deduction usually make sense. Above that, a business car often wins.

Watch out: the bijtelling rules#

Bijtelling is not one simple number. The Belastingdienst sets a loonheffingskorting factor (currently in the range of 8–25%, depending on the car's list price, emissions, and age). Some cars have much lower factors, especially if they're cheap or very old. A €15,000 car might have a 5% factor, while a €50,000 luxury car might be 20%.

Also, if you have a genuine separate-entrance home office (the strict "zelfstandige werkruimte" test), you can sometimes reduce bijtelling by the proportion of your home that's the office. But this is rare.

The mileage-deduction alternative: three practical rules#

If you take the private car route (mileage deduction), keep three things in mind:

1. Keep a trip log. You must be able to prove the km were for business. A logbook (or app, or spreadsheet) is your audit protection. Include date, destination, purpose, and km.
2. No BTW. Unlike a fuel expense from a business account, the mileage allowance carries no BTW (it's not a purchase). You can't reclaim it.
3. It's all-or-nothing. You either claim mileage or deduct actual costs. You can't do both in the same year.

Business car and BTW#

One extra angle: if the car is on the business, you can reclaim the BTW you paid when you bought or leased it (if you're a standard-rate taxpayer). Over a €30,000 car, that's €6,300. Over 5–10 years, that's a meaningful saving.

If you lease instead of buy, the same applies: the leasing company's BTW is reclaimed by you quarterly.

For a private car, you can't reclaim BTW. You pay it out of your own pocket.

• Calculate your annual business km
• Get the bijtelling factor for your specific car from the Belastingdienst
• Calculate the annual bijtelling cost at your marginal tax rate
• Compare it to the mileage deduction (km × €0.23 in 2025, or €0.25 in 2026)
• Factor in the BTW reclaim on purchase or lease
• Decide based on your real usage

Frequently asked questions#

The choice between a business and private car isn't a legal question—it's a tax-and-cash-flow question. Run the numbers for your situation, keep a trip log if you go private, and remember that ZZP Belasting tracks all your mileage and costs, so you can switch strategies if your business changes.

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