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# What are the consequences if I don't declare all my income?

If you do not declare all your income, there could be implications. 

The Luxembourg tax authority maintains exchanges of information with other foreign tax authorities, which increases the possibility of detecting undeclared income, whether as a result of negligence or deliberate intent. 

In the event of detection, the consequences will vary according to various factors, but it is important to note that intentional concealment of income may be considered as tax fraud and lead to sanctions.