On 2 September 2015, in light of the JCPOA, the UK Foreign and Commonwealth Office released a set of frequently asked questions on doing business with Iran.

The questions and accompanying guidance cover issues such as the impact of the deal on business, the time of phasing of sanctions relief, the risks of doing business in Iran and other topics. The guidance emphasises that, until the sanctions relief is in force, the prohibitions remain in place and enforceable, and reiterates that trade with or investment in Iran is currently not encouraged by the UK.