If your tax return contains errors or omissions that reduce your tax or increase a tax advantage in your favour, tax penalties apply.

Tax increase due

You will have to pay a 10%.

It is applied to the additional tax you must pay or the amount of the benefit to which you are not entitled.

You can avoid this increase by one of the following 2 ways:

• Regulate your situation spontaneously (by lodging a declaration of amendment)
• Respond within 30 days to a revival of the administration

In the event of fraudulent or wilful misconduct, more severe penalties.

Late interest

You may also be charged late interest.

They amount to 0,20% tax due per month of delay (or 2.4% over 1 year).