We provide a broad range of tax advisory services with focus on tax litigations, transaction and financing structuring services, due diligence, financial services tax and tax compliance and audit assistance. Our tax services complement our ability to execute high-end transactions, equity and debt structures, and litigations processes.
Rankings
2025
Avance has achieved Tier 2 rankings in both the Tax controversy and Transactional tax categories, reflecting our team’s dedication to providing top-tier tax advisory services. Additionally, Avance received Tier 3 rankings in General corporate tax and Indirect tax, with the latter marking our debut in this category. Partner Sebastian Kellas continues to earn recognition as ‘Highly Regarded’ in the Real estate and Transactional tax. Antti Leppänen, is again named ‘Highly Regarded’ in Tax controversy, while Senior Associate Janina Järvi is celebrated as a ‘Rising Star’ in Transactional tax.
ITR World Tax 2025
2024
“Avance’s team has a great ability to explain complex issues in layman’s terms and the implications of different scenarios.”
“They are extremely good. They have a deep understanding of our company and its circumstances. They have top-notch partners and people, so it becomes easy and efficient to work with these guys.”
Chambers Europe 2024, Tax
2024
Avance receives Tier 2 rankings in the General corporate tax, Tax controversy and Transactional tax categories. Partner Sebastian Kellas continues to be recognized as ‘Highly Regarded’ in the Real estate and Transactional tax categories. Antti Leppänen is recognized as ‘Highly Regarded’ in ‘Tax controversy’ and Senior Associate Janina Järvi enters the rankings as a ‘Rising Star’ in Transactional tax.
ITR World Tax 2024
2023
Avance receives Tier 2 rankings in the General corporate tax, Tax controversy and Transactional tax categories. Partner Sebastian Kellas continues to be recognized as ‘Highly Regarded’ in the Real estate and Transactional tax categories.
ITR World Tax 2023
2022
Avance’s Tax and Structuring practice has again been recognized in the prestigious World Tax ranking released by International Tax Review, by receiving e.g. Tier 2 rankings in both Transactional tax and Tax controversy categories. In addition, Partner Sebastian Kellas individually ranked as ‘Highly Regarded’ in the Real estate and Transactional tax categories.
ITR World Tax 2022