Monaco imposes a penalty of EUR 15 to EUR 75 for late return filing.
Late payments are subject to a penalty of 3% of the tax due. In addition, a penalty of 1% per month the tax remains unpaid will be applied.
For general errors a penalty of up to 150% of the tax due will be imposed. In cases of fraud and willful evasion, the penalty is increased up to 400% of the tax due.