It is understood that a pension or other similar remuneration or annuity is deemed to be derived from a Contracting State if and insofar as the contributions or payments associated with the pension or other similar remuneration or annuity, or the entitlements received from it qualified for tax relief in that State. The transfer of a pension from a pension fund or an insurance company in a Contracting State to a pension fund or an insurance company in another State will not restrict in any way the taxing rights of the first-mentioned State under this Article.
