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🚙 Use of a vehicle under a business name - how it affects taxation

When you use a car in your business, it has a direct impact on your taxation and, if used correctly, can bring significant tax savings. Your vehicle's tax liability is affected by how much you drive it for business purposes, and this determines how much you can deduct from your taxation

🔹 Less than 50% business driving? Tax benefit through kilometre allowances

If less than half of the use of your vehicle is for business purposes, the expenses are treated as an additional deduction. This means that we will automatically include your driving in your tax bill according to the mileage allowances set by the Tax Administration.

🔹 Over 50% business driving? Deductions according to receipts

But when business-related journeys account for more than 50% of total annual kilometres, the situation changes. In this case, vehicle expenses such as fuel, maintenance and insurance are split between private and business driving, and tax deductions are made on the basis of the receipts provided.

📒 Driver's logbook

As deductions are based on driving, it is necessary to keep a logbook. Similarly, basic vehicle information must be provided so that we can process your tax correctly.

If you want to easily and accurately add your car expenses to your accounting, we recommend the Driversnote app. As a Truster customer, you get it at a discounted price, and recording your working hours is a breeze. This way, your company's expenses are kept in order - automatically.

👉 Get Driversnote at a special price here!

Vehicle taxation

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How do I add expenses?

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How does accounting work with Truster?

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Where can I find my company details?

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What expenses can I add to my accounts?

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What does the Pro Light service cost?

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How does income tax work on Truster Pro Light ?

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How Truster handles YEL insurance

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Who has to take out YEL insurance?

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Payment transactions in Pro Light

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Have you received a request for information from the Immigration Service?

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Downloadable commission agreement for a sole trader

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How do I subscribe to Truster Pro Light ?

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Creating an invoice

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I already have a business ID, can I use Truster Pro Light ?

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In which registers will the business name be registered?

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Company data management

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Suomi.fi - Company mandates

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Suomi.fi - Personal mandates

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Important dates for an entrepreneur

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YEL insurance

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Business reports for the self-employed entrepreneur

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How to set up a direct debit

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Subcontractor: how to share your data with the end user

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Advance taxes Truster Pro Light - service

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How do I handle receipts

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Kilometre allowances in 2025

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I have a substitute, how do I split the bill?

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Mileage allowances for self-employed persons

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