Polish tax authorities can investigate car purchases after neighbor tip

Polish tax offices regularly receive anonymous reports about individuals who may be hiding income or evading taxes. A neighbor’s complaint can be triggered by conspicuous spending such as buying a new car, undertaking costly home renovations, or taking an expensive holiday.

When a tip is received, the tax administration must verify the information. It can check whether the taxpayer has declared the relevant income, reported rental earnings, registered a business activity, or paid the required taxes. In many cases the suspicion proves unfounded, but the taxpayer may still need to provide documentation explaining the source of funds.

Purchases that attract particular scrutiny include used‑car transactions with private sellers. The buyer must file a PCC‑3 declaration and pay a 2 % tax on the vehicle’s value within 14 days, unless the car is bought from a dealer or is worth less than 1 000 zł. Tax officers may also assess whether the declared price reflects market value and adjust the tax accordingly.