Question to the Foreign, Commonwealth & Development Office:

To ask the Secretary of State for Foreign, Commonwealth and Development Affairs, pursuant to the Answer of 9 June 2025 to Question 54794 on British Indian Ocean Territory: Sovereignty, what the value of each annual payment is in cash terms.

We have published the full costs alongside the Treaty and provided further detail in the accompanying explanatory memorandum. These were laid in the House on the day of signature. The average cost per year in today's money is £101 million and the net present value of payments under the treaty is £3.4 billion.