Selling a private car can create a tax obligation that many vehicle owners are not aware of. Reporting such a transaction in the annual tax return requires knowledge of detailed tax rules and a correct calculation of the tax base. Reporting the sale incorrectly can lead to additional tax liabilities or sanctions from the tax authorities.
The taxation of private car sales affects many people who replace their vehicles. What matters most is the timing of the sale and how the car was acquired. Tax rules set out precisely when such a transaction is taxable and when it can be treated as exempt from income tax. When the car belongs to a business, different rules apply — we describe them in our article on taxes on selling a company car.
The sale of a private car is subject to income tax only if it takes place before half a year (6 months) has passed from the end of the month in which the vehicle was acquired (Article 10(1)(8)(d) of the PIT (personal income tax) Act). After this period the sale creates no tax obligation and does not have to be reported in the annual tax return
When the sale of a car is taxable
The basic criterion for taxing the sale of a private car is the time between acquiring and disposing of the vehicle. Under the PIT Act, a source of income is the paid disposal of movable property (in the Act: "other things"), which includes passenger cars.
Article 10(1)(8)(d) of the PIT Act sets out precisely the conditions that must be met together for the sale of a car to generate income from this source. The first condition is that the sale must not take place in the course of a business activity. This means the vehicle must have belonged to the owner's private assets.
The second, key condition is timing. The sale must take place before 6 months have passed, counting from the end of the month in which the car was acquired. This period is much shorter than for real estate, where it is 5 years, counting from the end of the calendar year of acquisition.
A car acquired in January can be sold without tax consequences only after 31 July of the same year. If the sale takes place earlier, a tax obligation arises that must be settled in the annual tax return
It is worth stressing that these rules apply to vehicles held as private assets. If the car was a fixed asset of a business (it was subject to entry in the fixed asset register), its sale is business income (Article 14(2)(1)(a)), also after it has been withdrawn from the business – if 6 years have not passed between the first day of the month following the month of withdrawal and the day of sale (Article 10(2)(3)).
The method of acquisition also matters in practice. Whether the car was bought for cash, on credit or received as a gift, what counts is the date on which ownership was actually acquired. When buying on credit, the relevant date is the date the sale agreement was signed, not the date of the last instalment.
Determining the tax base on the sale of a car
The tax base on the sale of a private car is the income, calculated as the difference between the revenue from the sale and the tax-deductible costs. Determining it correctly requires a detailed analysis of all elements of the calculation and proper documentation of the expenses incurred.
The revenue from the sale is the price stated in the car sale agreement, reduced by the costs of the sale (Article 19(1)). If the sale price differs significantly from the market value of the vehicle without a justified reason, the tax authority may set the revenue at market value (after asking the parties to change the price or explain the reasons – Article 19(4)). Market value is determined on the basis of prices used in trading cars of the same kind and type, taking into account their technical condition, mileage and degree of wear. A car's value also has to be set in other tax situations, for example when dealing with car value in a lease and the cost limit.
Acquisition costs of the car
Acquisition costs include all expenses incurred in connection with buying the vehicle. This category mainly covers the purchase price shown on the invoice or in the sale agreement. In addition, a number of costs accompanying the purchase can be included.
Acquisition costs of a car may include the tax on civil law transactions (PCC) paid by the buyer when buying from a private person (2% of the market value where it exceeds PLN 3,000 from 3 November 2026, or PLN 1,000 for contracts concluded earlier – Article 7(1)(1)(a) and Article 9(6) of the PCC Act, Dz.U. 2026, item 1354), excise duty when importing the vehicle from abroad, the fee for the first roadworthiness test, translation of documents and the cost of registration plates
Pay particular attention to documenting the accompanying costs. Each expense should be documented with an invoice, a bill or another document confirming that it was incurred. For cars imported from abroad, costs can be much higher because of customs procedures and the need to adapt the vehicle to Polish standards.
For cars imported from abroad, the acquisition cost usually also includes expenses directly related to buying and importing the vehicle, such as excise duty or the recycling fee – provided their payment is documented.
Outlays incurred during ownership
The second category of tax-deductible costs is outlays incurred while the taxpayer owned the car. However, not all expenses related to using the vehicle can be treated as tax-deductible costs. The Act allows the revenue to be reduced by the value of outlays made while the item was owned (Article 24(6)), and in practice outlays on the car are distinguished from ordinary running costs.
As a rule, tax-deductible costs may include expenses on repairing and upgrading the vehicle. These include, among others:
- Engine overhaul or replacement
- Bodywork and paintwork
- Installation of an LPG system
- Gearbox replacement
- Upgrading equipment
Running costs such as oil changes, fuel, regular roadworthiness tests, and third-party liability (OC) and comprehensive (AC) insurance cannot be treated as tax-deductible costs on the sale of a car. These costs do not increase the value of the vehicle; they only keep it working
A cost may also be, for example, transporting a broken-down car from the border, if this was a necessary step to make the vehicle usable.
Documenting tax-deductible costs
A key element of settling a car sale correctly is proper documentation of all tax-deductible costs. The rules do not specify which document must confirm an expense on the sale of movable property (the requirement of VAT invoices in Article 22(6e) applies to real estate and rights under Article 10(1)(8)(a)–(c)), so it is worth keeping every document that shows the expense was incurred and its link to the car being sold. In a business, a separate topic is excise duty on cars as a tax-deductible cost.
Documents confirming the costs incurred may include:
- VAT invoices issued by businesses
- Bills for services performed
- Bank transfer confirmations
- Fiscal receipts with additional proof of payment
- Other accounting documents
For fiscal receipts it is worth keeping additional proof of the cost, such as bank statements confirming payment. The documents should clearly show who incurred which expense and when, and its link to the vehicle
If the taxpayer does not properly document an expense or does not prove its link to the car, the expense cannot be a tax-deductible cost. This can significantly affect the tax base and the final amount of tax due.
How to report the sale in the annual tax return
Income from the paid disposal of a private car is taxed under the tax scale (12% and 32%) and must be reported in the annual tax return filed between 15 February and 30 April of the year following the tax year in which the sale took place (Article 45(1)). The return must also be filed if the sale resulted in a loss.
The correct form for settling such a transaction is PIT-36 (the annual return for income taxed under the tax scale) in the version applicable for the given tax year. Revenue, costs and the resulting income (loss) are reported in part E, in the row "Odpłatne zbycie rzeczy określonych w art. 10 ust. 1 pkt 8 lit. d ustawy" (paid disposal of things under Article 10(1)(8)(d) of the Act).
Calculating the tax due
Income from the paid disposal of a car is combined with the taxpayer's other income taxed under the general rules. This means it increases the tax base and may affect the tax rate applied under the tax scale.
The tax scale in 2026 (Article 27(1)) provides the following rates:
- 12% on income up to PLN 120,000, minus the tax-reducing amount of PLN 3,600
- 32% on the excess of income over PLN 120,000
On the paid disposal of movable property there is no obligation to pay monthly income tax advances. All tax on this transaction is settled in the annual tax return filed by 30 April of the following year
If the taxpayer made a loss on the sale of the car (costs exceeded revenue), the loss reduces income from the paid disposal of other movable property earned in the same tax year (Article 9(2)). It cannot be settled in later years – Article 9(3a)(1) excludes carrying forward losses from the paid disposal of things.
Preparing the annual tax return
Preparing an annual tax return that includes the sale of a private car requires gathering all necessary documents and making detailed calculations. The taxpayer must prepare:
- The car sale agreement stating the price
- Documents confirming the purchase of the vehicle
- Invoices and bills for outlays incurred
- Proof of payment of all costs
- Documents confirming the costs of the sale
Then calculate the tax base using the following scheme:
| Calculation element | Description | Example |
|---|---|---|
| Revenue from the sale | Contract price minus costs of the sale | PLN 45,000 |
| Acquisition costs | Purchase price plus accompanying costs | PLN 40,000 |
| Outlays during ownership | Documented repairs and upgrades | PLN 3,000 |
| Tax base | Revenue minus all costs | PLN 2,000 |
If the calculated tax base is negative, this means a loss, which can only be settled against income from the paid disposal of other movable property in the same year – the rules do not allow it to be carried forward to later years (Article 9(3a)(1) of the PIT Act)
Special situations when selling a car
In practice, various situations may require a special approach to settling the sale of a private car. Each of them can significantly affect how the tax base is calculated and which formalities are required.
Cars received as a gift
If the car was received as a gift, the date of acquisition is the day ownership was acquired under the gift agreement. The recipient does not incur an acquisition cost, and income is the revenue reduced by the acquisition cost and outlays (Article 24(6)) – so in practice the only costs are documented outlays. The provision allowing the inheritance and gift tax paid to be added (Article 22(6d)) applies only to real estate and rights under Article 10(1)(8)(a)–(c), not to cars.
Cars acquired by inheritance
For cars acquired by inheritance, the date of acquisition is the date the succession opened, i.e. the date of the testator's death. The special rules counting the period from the date of acquisition by the testator (Article 10(5)) apply only to real estate and rights under letters (a)–(c). The heir does not incur an acquisition cost for the car, so – as with a gift – the revenue is, as a rule, reduced only by documented outlays (Article 24(6)).
Car swaps
Special rules apply when one car is exchanged for another. In this situation each party to the swap is treated as both seller and buyer. The six-month period applies separately to each party, counting from the end of the month in which that party acquired the vehicle it is disposing of (Article 10(1)(8), final part).
The owner of a car acquired in January swapped it for another vehicle in May of the same year. Since 6 months had not passed from the end of the month of acquisition, the swap generates taxable revenue that must be settled in the annual tax return. The revenue is the value of the car disposed of in the swap (Article 19(2)), and the income is the difference between that value and the acquisition cost of the car disposed of.
Selling a car below its purchase price
Sometimes a car is sold for less than it cost to acquire. In this situation the taxpayer makes a tax loss, which reduces income from the paid disposal of other movable property earned in the same tax year.
If there is no other income from this source in that year, the loss is lost – it cannot be carried forward to later years (Article 9(3a)(1)). The sale at a loss must still be reported in the PIT-36 return for the year of sale.
Consequences of incorrect reporting
Incorrectly settling the sale of a private car or omitting this revenue from the annual tax return can have serious financial and legal consequences. The tax authorities have broad audit powers and can detect an unreported sale from various sources of information.
Sanctions for incorrect reporting
If irregularities are found, the tax authority may determine the tax liability in the correct amount (Article 21 § 3 of the Tax Ordinance Act (Ordynacja podatkowa)), and the taxpayer will pay the arrears together with late payment interest. Interest is charged from the day after the tax payment deadline, i.e., as a rule, from 1 May of the year following the tax year.
If the taxpayer, evading taxation, did not disclose the revenue from the car sale, they are liable under Article 54 of the Fiscal Penal Code (KKS). Where the amount of tax exposed to depletion does not exceed five times the minimum wage, this is a fiscal petty offence punishable by a fine of 1/10 to 20 times the minimum wage (Article 48 § 1, Article 53 § 3 KKS); above this threshold it is a fiscal offence.
The tax liability arising from the sale of a private car becomes time-barred 5 years after the end of the calendar year in which the tax payment deadline passed. Throughout this period the tax authorities may start a tax audit or tax proceedings (Article 70 § 1 of the Tax Ordinance Act)
Sources of information for the tax authorities
Tax offices (urząd skarbowy) have access to various sources of information that can reveal an unreported car sale:
- Data from the Central Register of Vehicles and Drivers (CEPiK)
- PCC-3 returns filed by buyers
- Cross-checks of buyers' and sellers' data
- Analyses of transactions on bank accounts
- Random and targeted audits
Taxpayers who regularly replace cars or carry out transactions for large amounts are particularly likely to be detected. The tax authorities may also check whether declared income is consistent with the taxpayer's standard of living. If you run a business, our office can prepare your returns and annual settlements — see our accounting services.
Most common mistakes when settling a sale
Practice shows that taxpayers make a number of typical mistakes when settling the sale of private cars. Knowing these mistakes helps you avoid them and meet your tax obligations correctly.
Miscalculating the 6-month period
The most common mistake is calculating the six-month period incorrectly. Taxpayers often count the period from the date of acquisition, whereas the rules refer to a period counted from the end of the month of acquisition. The difference can be significant and can decide whether a tax obligation arises.
Incorrectly documenting costs
Another common mistake is treating running costs that do not increase the value of the car as tax-deductible costs. Taxpayers often try to deduct the cost of fuel, insurance or routine roadworthiness tests, which are not outlays on the car.
Omitting the costs of the sale
Many taxpayers forget to deduct the costs related to selling the car, such as advertising fees, intermediaries' commissions or the cost of preparing documents. These costs can be deducted from the revenue, reducing the tax base.
- Costs of advertisements in the press or online
- Commissions for a car dealer selling on consignment
- Notary fees for drawing up the agreement
- Costs of technical inspections of the vehicle
- Expenses on preparing the car for sale
Errors in the tax return
Taxpayers often make mistakes when filling in the PIT-36 form, reporting the sale in the wrong part of the return or giving incorrect amounts. Correctly calculating the income and reporting it in the right row is particularly problematic.
A taxpayer bought a car in February for PLN 50,000 and sold it in June for PLN 48,000. They also paid PLN 200 for an advertisement. The revenue is PLN 47,800 (48,000 - 200) and the acquisition cost PLN 50,000, so the taxpayer made a loss of PLN 2,200, which can only be settled against income from the paid disposal of other movable property in the same year.
