Overstay penalty
USD 15Effective 1 September 2025, the Nigeria Immigration Service introduced a USD 15 per day fine for every day overstayed beyond the approved period, a genuinely dated, recent change; a grace period ran until 1 August 2025 allowing expatriates to regularise their status without penalty first. Overstaying three months or more adds a five year re-entry ban on top of the daily fine; overstaying a year or more adds blacklisting and a permanent ban.