FinlandFinlex
KHO: tax set on exact Customs data is not assessment-based taxation
KHO:2026:75 holds that excise duty quantified from Tulli's precise inspection data is not imposed by estimation, so the 25% increase for assessed tax does not apply and the 10% basic rate stands.
By Taxxa AI OyPublished 22 September 2026
The Supreme Administrative Court (KHO) holds in precedent KHO:2026:75 that excise duty is not imposed by estimation where Verohallinto can quantify it directly from precise information received from Tulli on the quantities and types of imported excise goods, even though the taxpayer filed no returnFinlex. In that situation the 25 per cent tax increase (veronkorotus) for assessed tax does not apply
Finlex, and the basic 10 per cent rate stands
Finlex.
The case concerned alcohol and beverage-packaging excise on a large consignment of alcoholic beverages found in a van arriving from Tallinn at Helsinki's Länsisatama on 28 May 2021. By decisions of 17 August 2023 Verohallinto imposed alkoholi- ja alkoholijuomavero of 1,962.02 euro and juomapakkausvero of 340.63 euro, plus a 25 per cent increase on the taxes for failure to meet the filing duty. The Tax Adjustment Board rejected the claims on 9 September 2024, but the Helsinki Administrative Court, by decision 3025/2025 of 12 May 2025, annulled the increase decisions in part and reduced the increases to 10 per cent of the taxes imposed. The KHO granted the Veronsaajien oikeudenvalvontayksikkö leave to appeal, dismissed the appeal and left the Administrative Court's outcome unchanged.
The decisive distinction is between the two layers of the assessment. The evaluation under 72 §:n 2 momentti of the valmisteverotuslaki concerned only the purpose for which the products were imported and the sufficiency and credibility of the evidence on it — whether part of the consignment had been brought in for commercial or other business purposes. The amount of tax itself rested directly on undisputed evidence of the products' quantities and types obtained in Tulli's internal-border inspection of the vehicle combined with the hearing of the taxpayer. Where the information needed to impose the tax is available in that form, there is no situation within the meaning of 43 § of the laki oma-aloitteisten verojen verotusmenettelystä in which information needed from the taxpayer would be missing; in this case no such information was requested from the taxpayer either. Imposition of the tax therefore did not occur arvioimalla within the meaning of 43 §, and it was not arvioverotus within the meaning of 38 §:n 3 momentti.
As a result, the 25 per cent rate for tax assessed by estimation could not be imposed under 38 §:n 3 momentti. Because no other grounds were presented for departing from the basic level of the increase in 38 §:n 1 momentti, the Administrative Court's reduction of the increases to 10 per cent of the taxes imposed stands. A missed excise return still triggers an increase under 37 §, but the 25 per cent rate requires genuine estimation; precise third-party quantity data takes the assessment outside it.
On procedure, the KHO finds that the Administrative Court should not have decided the taxpayer's appeal without hearing the Veronsaajien oikeudenvalvontayksikkö. Under 66 §:n 2 momentti that shortcut is available only where the amount at stake on the taxpayer's claim is at most 6,000 euro and the matter is not open to interpretation or unclear; here the decision turned centrally on the interpretation of assessment-based taxation, the panel members disagreed, and the decision was published in the Finlex database. The error was a hearing defect for which the decision would ordinarily be annulled and remanded, but because the unit was able to state its position before the KHO, the KHO did not annul the decision or remand the case on that ground.
Legal basis: laki oma-aloitteisten verojen verotusmenettelystä (768/2016) 38 §:n 1 ja 3 momentti and 43 §:n 1 momentti, applied alongside valmisteverotuslaki 72 §:n 2 momentti on the assessment of use purpose.
When disputing a 25 per cent increase on excise duty imposed after a missed return, check whether the tax amount rested on precise third-party quantity data rather than genuine estimation.