Overstay penalty
Check with the embassy for overstay penalties.A tiered entry ban by overstay length rather than one flat fine: 1 year for an overstay of over 3 and up to 90 days, 2 years for most further violations including failing to depart after a return decision, 10 years if the traveler is judged a public order risk, 20 years for a national security risk. The IND's own page separately mentions a possible criminal penalty of up to 6 months in prison or a fine of a few thousand euros in a more serious case, not a routine, precisely published figure.