Companies may suffer losses unexpectedly due to “don’t know”． Possibility suffering losses would increase especially when conducting unusual transactions or making international transactions． Similarly, in taxation, there is the possibility of unexpected taxation due to “don’t know” when unusual or international transactions are carried out. Even significant amount of taxes can be manageable if it is expected before the transaction. However, unexpected tax has generally a large impact to the profit from the transaction even if it is small amount． To avoid such unexpected tax, it is necessary to involve a tax specialist who is specialized with taxation related to unusual transactions and/or international transactions. We will support you in order to minimize unexpected tax arising from your “don’t know”．