This briefing paper explores the likely content of a market access agreement for financial services between the UK and the EU. Despite the UK Government’s early hopes that all trade issues could have been settled in the Withdrawal Agreement, the actual situation is that this Agreement addresses only those trade issues necessary to ensure an open Irish Border.  The accompanying Political Declaration on the future relationship between the UK and the EU lays out some broad non-binding principles on which negotiations around financial services access are intended to proceed during the transition period, but important details are undefined. During the negotiation of the Political Declaration itself, some counter-briefing took place as to the meaning of some of these principles. The existence of such counter-briefing suggests that when these negotiations commence, the rules of access for UK financial services will again be a contentious issue. This paper uses what we know now to analyse the options that may emerge and the likelihood of their adoption. Read Briefing Paper 27 – EQUIVALENCE, MUTUAL RECOGNITION IN FINANCIAL SERVICES AND THE UK NEGOTIATING POSITION