With more than 15 years of experience as a tax and business lawyer, Sigbjørn advises both Norwegian and international companies, as well as individuals, on national and international tax matters and corporate law. He has extensive experience assisting international companies establishing or doing business in Norway, providing practical and strategic advice tailored to the Norwegian regulatory and tax landscape. His expertise includes corporate and personal taxation, reorganizations, mergers and demergers, business transfers, and transactions. Sigbjørn supports clients throughout all stages of the business lifecycle — from corporate structuring and governance matters to tax audits and disputes with the tax authorities. He also conducts tax due diligence in connection with transactions and assists clients with tax audits, appeals, and correspondence with the tax authorities.
Blog Post by Sigbjørn Sørensen - Lawyer & partner
Business in Norway
Sigbjørn Sørensen - Lawyer & partner13. May 2026
Doing business in Norway—6 compliance pitfalls to avoid
Doing business in Norway can be highly rewarding for foreign companies, but navigating Norwegian regulations, tax rules, and employment requirements can be challenging. From VAT ...
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Corporate Law
M&A
Sigbjørn Sørensen - Lawyer & partner12. February 2026
Why and how to conduct a valuation of your company?
Valuation of a company can be relevant in many contexts. It can be in connection with the purchase and sale of a business, as well as mergers or demergers, generational changes ...
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News
Taxation
Sigbjørn Sørensen - Lawyer & partner6. February 2026
State budget 2026—A summary
On October 15, the Støre government presented its proposed state budget for 2026. It is important to emphasize that this is only a proposal - the government will now negotiate ...
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Corporate Law
Business in Norway
Sigbjørn Sørensen - Lawyer & partner8. May 2025
Private Limited Company in Norway: Why you need a Company Secretary
Operating a private limited company (“aksjeselskap” or “AS”) in Norway involves a range of legal and administrative duties. Unlike some countries, Norway does not require ...
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News
Sigbjørn Sørensen - Lawyer & partner18. October 2024
The 2025 national budget: Key tax and duty changes
On October 7, 2024, the Støre Government presented the national budget 2025. Although the government plans to increase oil revenues, only minor changes have been proposed to the ...
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News
Sigbjørn Sørensen - Lawyer & partner14. May 2024
Revised National Budget 2024 - The most important changes
Today at 10:45 AM, the proposal for the Revised National Budget was presented by Finance Minister Vedum. There were high expectations regarding potential tax changes that could be ...
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Contract Law
Business in Norway
Sigbjørn Sørensen - Lawyer & partner7. June 2023
Business in Norway—contract drafting and negotiation
Doing business in Norway requires more than just drafting a contract—it requires understanding how Norwegian law treats agreements. Unlike some legal systems, Norwegian contract ...
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Taxation
Sigbjørn Sørensen - Lawyer & partner18. January 2023
How are Bitcoin and other cryptocurrencies taxed?
There are many people who invest in cryptocurrencies today. However, The Norwegian Tax Administration states that very few people declare their crypto investments in their tax ...
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