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FinlandTulli

Tulli opens probe into systematic IOSS import undervaluation

Low-value consignments mainly from China were undervalued in buyers' names; Tulli will phone hundreds of shoppers for information — buyers are not crime suspects.

By Taxxa AI OyPublished 28 September 2026

Tax

Tulli has opened a criminal investigation into systematic abuse of the IOSS import schemeTulli, with suspected tax damage running into several millions of eurosTulli. Low-value consignments delivered from outside the EU — mainly from China — were declared in buyers' names by several different operatorsTulli at prices far below the real transaction valuesTulli, with false goods descriptions in the customs declarationsTulli. Undervaluation directly reduces the value-added tax accruing to FinlandTulli, and Tulli describes the resulting VAT gap for EU member states as significant. Investigation head Johanna Mickelsson says the figures will sharpen as the investigation proceeds.

Tulli suspects misuse of several operators' IOSS identifiers — either hijacked identifiers of legitimate businesses or identifiers originally obtained to enable fraudTulli. Tulli's customs supervision covers the correctness of import declarations; Verohallinto supervises the VAT accounting of IOSS-registered businesses to Finland.

In the coming months Tulli will phone hundreds of online shoppers to ask for details of their ordersTulli. The buyers are not suspected of crimes in this connectionTulli, and nobody needs to contact Tulli on their own initiative. When Tulli calls, it never asks anyone to click links or log in to any serviceTulli.

Tulli's audits also show a pattern behind the consignments: products ordered by Finns were marketed on Finnish-language sites in ways that could make consumers believe the goods were domestic or EU origin, when the parcels were in fact shipped directly from outside the EUTulli. Attractive advertising — steep discounts or bulk offers — drew shoppers to stores projecting reliability, and some buyers did not know where the goods came from or that their parcel had been customs-cleared. Separately, frauds were found where shoppers ordering, for example, furniture from a social-media store received only a worthless trinket; such stores may operate briefly, collect money from as many consumers as possible, vanish, and reappear under a new name.

A buyer whose parcel does not match the order should first contact the store and, for credit-card purchases, the card company. Customs inspector Mervi Luukas advises checking reviews and customer experiences online and reading the order and delivery terms in advance; missing company or contact details on the store's pages is itself a warning sign.

IOSS (Import One-Stop Shop) is the special VAT payment scheme for online purchases worth no more than 150 euros excluding transport costsTulli: where the purchase is within the limit, comes from outside the EU and the seller is IOSS-registered, Finnish VAT is paid to the online store at purchaseTulli. Declarations go under an IOSS identifier, and the IOSS operator reports its sales VAT to its EU registration state, which forwards VAT to the consumption states. Since 1 July 2026 an IOSS purchase can no longer be self-declaredTulli; clearance is always done by the seller or its representative such as the carrier.

Legal basis: Tulli notice of 28 September 2026 on the IOSS preliminary investigation.

Brokers and e-commerce sellers moving low-value consignments into Finland should verify that declared values, goods descriptions and IOSS identifiers are correct, since Tulli is now pursuing the operators behind systematic undervaluation.

Sources

Tulli lähestyy satoja verkkokauppaostajia – esitutkinta väärinkäytöksistä käynnissä