(1) Interest derived from a Contracting State by a resident of the other Contracting State may be taxed in that other State.
(2) However, such interest may also be taxed in the Contracting State in which it arises, and according to the law of that State, but if the recipient is the beneficial owner of the interest the tax so charged shall not exceed 15 per cent of the gross amount of the interest.
(3) Notwithstanding the provisions of paragraph 2 of this Article, interest arising in a Contracting State shall be exempt from tax in that State if it is derived and beneficially owned by:
- (a) the Government of the other Contracting State or a local authority thereof or any agency or instrumentality of that Government or local authority.
- For the purpose of this sub-paragraph, Government agency or instrumentality means:
- (i) in the case of Czechoslovakia, the Ceskoslovenska obchodni banka; and
- (ii) in the case of Nigeria, the Central Bank of Nigeria.
- (b) any institution of a Contracting State set up by the Government of the State to finance external trade, provided that the loan or credit in respect of which the interest arises is approved by the Governments of the two Contracting States.
(4) The provisions of paragraphs 1 and 2 of this Article shall not apply if the beneficial owner of the interest, being a resident of a Contracting State, has in the other Contracting State of which the person paying the interest is a resident a permanent establishment or a fixed base situated therein and the debt-claim in respect of which the interest is paid is effectively connected with the business carried on through such permanent establishment or fixed base. In such a case, the provisions of Article 7 or Article 13 as the case may be, shall apply.
(5) Interest shall be deemed to arise in a Contracting State when the payer is that State itself, a political subdivision, a local authority or a resident of that State. Where, however, the person paying the interest, whether he is a resident of a Contracting State or not, has in a Contracting State a permanent establishment or a fixed base in connection with which the indebtedness on which the interest is paid was incurred, and such interest is borne by that permanent establishment or fixed base, then such interest shall be deemed to arise in the State in which the permanent establishment or fixed base is situated.
(6) Where owing to a special relationship between the payer and the beneficial owner or between both of them and some other person, the amount of the interest paid exceeds, for whatever reason, the amount which would have been agreed upon in the absence of such relationship, the provisions of this Article shall apply only to the last-mentioned amount. In that case, the excess part of the payments shall remain taxable according to the laws of each Contracting State, due regard being had to the other provisions of this Agreement.
(7) The term "interest" as used in this Article means income from debt-claims of every kind, whether or not secured by mortgage, and whether or not carrying a right to participate in the debtor's profits, and in particular, income from government securities and income from bonds or debentures, including premiums and prizes attaching to such securities, bonds or debentures.