Your funding will continue to come from the EC, to the end of the project, now that the Withdrawal Agreement has come into force. On 22 January 2020 UKRI published the following statement providing further clarity on the situation:
UK scientists, researchers and businesses can continue to participate in, bid for and lead projects in the European Union’s (EU) flagship programme Horizon 2020, as if the UK remained a Member State, even after the UK exits the EU on 31 January 2020.
The UK remains the second highest recipient of Horizon 2020 funding for science and innovation and UK organisations are encouraged to continue to bid into calls for grants until the end of the Horizon 2020 programme.
The Withdrawal Agreement means that the UK continues to participate in EU Programmes financed by the 2014-2020 Multiannual Financial Framework (MFF) until their closure. Horizon 2020 is a Programme funded under the current MFF. UK scientists, researchers and businesses can continue to participate in these programmes and receive EU grant funding for the lifetime of individual projects, including projects finishing after the transition period ends in 2020.
A very limited number of UK Horizon 2020 projects, which involve access to security-related sensitive information restricted for EU Member States, may be unable to continue after EU Exit in their current form. The government expects the European Commission to inform participants if this is the case. Any affected UK grant holders should contact UKRI at EUGrantsFunding@ukri.org
The priority continues to be securing the best outcome for UK research and innovation and creating the best possible environment for collaborations and international partnerships to flourish. This includes a mutually beneficial future relationship with the EU in science and innovation.
The transition period ensures that there will no change as far as UK participation in Horizon 2020 is concerned; all existing UK participants will continue to receive funding from the European Commission for the full duration of funded projects (including those which run beyond 31 December 2020), current funding applications will continue to be evaluated by the Commission, and UK researchers can continue to submit applications to Horizon 2020 calls.