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# What penalty interest is applied on late payment?

If the tax debt isn't paid by the due date, interest for late payment is calculated on both the assessed tax and any additional amount due for late filing of the tax return.


There are two types of late payment interest:

1.  Interest at the global flat rate of 0,1 % or 0,2 % per month, applicable when the taxpayer benefits from a payment deadline.

2.  Interest at the full rate of 0,6 % per month, applied if the tax debt is not paid by the due date. Which means at the end of the following month, upon receipt of the tax assessment, i.e. in:

* absence of a payment deadline,
* submission of a request for payment after the due date,
* agreement of a payment deadline that exceeds 3 years.