Who must file
Every entity earning income from trade or business in Kuwait files an annual declaration, including one a treaty exempts. In practice the charge falls only on foreign corporate bodies and on the foreign-owned share of a local or GCC company, so a wholly Kuwaiti or GCC-owned business has no corporate return to file. Kuwaiti shareholding companies also pay Zakat and KFAS, and listed ones the labour support tax. There is no personal income tax return.
Tax year and deadline
The declaration is due within three months and fifteen days of the end of the period, and the director may grant a reasonable extension on application (Income Tax Decree, art. 8). Tax is paid in four equal instalments on the 15th of the fourth, sixth, ninth and twelfth months after the period ends; where an extension was granted the whole liability falls due when it expires.
Filing step by step
- File through an audit firm licensed in Kuwait: the declaration has to be certified by an approved local auditor, so self-filing is not the norm.
- File on an actual-profit basis with the prescribed records; the authority also accepts a deemed-profit basis in practice.
- Use the Ministry of Finance portal for registration, the tax card, residency certificates and retention release requests.
- Expect an inspection and then an assessment letter. Object within 60 days, and appeal to the Tax Appeals Committee within 30 days of a rejection.
Penalties for filing or paying late
The charge is 1% of the tax for each 30 days or part of 30 days, and it runs separately for four defaults listed in Article 34 of the Executive Bylaw: filing the declaration late, never filing before the authority assesses you, paying a declaration instalment late, and leaving the final assessment unpaid more than 30 days after you are told of it, of the objection reply, of the Appeals Committee decision or of the court ruling. Article 8 of the Income Tax Decree removes the charge where the failure has a reasonable cause. The assessment letter itself must be paid within 30 days (Article 20). Falsifying records or making false statements on a declaration is a criminal offence with up to two years in prison, a fine, or both (Article 12), and a year already assessed can be reopened for five years from the date the false information is found (Article 21).