Sweden’s tax authority has intensified its scrutiny of cryptocurrency mining operations, issuing substantial additional tax assessments against several firms based in the northern town of Boden.
Skatteverket has determined that six companies must pay nearly 540 million kronor—roughly 56 million dollars—in back taxes after concluding that the businesses structured their activities to obtain reliefs reserved for ordinary data-processing facilities.
Officials argue that the operators employed elaborate corporate arrangements intended to conceal the fact that their facilities were primarily dedicated to mining, the energy-intensive process of generating new units of digital currency.
Because mining itself falls outside certain tax-relief schemes designed for conventional computing services, the agency maintains the companies claimed advantages they were never entitled to receive.
Patrik Lillqvist, head of intelligence at Skatteverket, described the pattern in blunt terms.
He said the inspected firms frequently relied on special setups that hid their mining work so they could secure tax benefits unavailable to genuine crypto miners.
“You come to a society and steal from it,” he remarked.
The latest wave of assessments forms part of a broader review covering 2024 through 2026.
During that period nine companies nationwide received tax adjustments totaling more than half a billion kronor.
Six of those firms, all operating in Boden, account for the great majority of the new bill.
The action follows an earlier investigation by public broadcaster SVT Norrbotten in 2024.
That reporting estimated that crypto operations had deprived the Swedish state of approximately one billion kronor, with the bulk of the disputed activity concentrated in Boden.
Authorities now say the same practices continued after the first revelations.Several of the affected companies have challenged the decisions in administrative court and the court of appeal.
Those courts have so far upheld the tax agency’s findings.
One of the largest operators, Bikupan Datacenter—which maintains sites in Boden and nearby Robertsfors and is linked to the publicly listed Canadian firm Hive Digital Technologies—has entered financial reconstruction after determining it cannot meet the assessed liabilities.
The company has taken its case to Sweden’s Supreme Administrative Court.Boden originally attracted miners because of cheap hydropower and naturally cool temperatures that reduced cooling costs.
Municipal leaders had courted data-center investment as a source of jobs and economic activity.
The unfolding tax disputes have complicated that strategy, prompting some operators to rebrand their facilities as high-performance computing or AI infrastructure even as tax authorities continue to classify much of the historic activity as mining.
The episode illustrates the tension between Sweden’s earlier openness to energy-intensive digital industries and a later determination to enforce tax rules that distinguish mining from other forms of data processing. Whether the remaining appeals succeed or further assessments follow, the northern mining cluster now faces a more demanding fiscal environment than the one that first drew it there.