• Research
  • Emissary
  • About
  • Experts
Carnegie Global logoCarnegie lettermark logo
DemocracyIran
  • Donate
{
  "authors": [
    "David Whineray"
  ],
  "type": "commentary",
  "centerAffiliationAll": "dc",
  "centers": [
    "Carnegie Endowment for International Peace"
  ],
  "collections": [],
  "englishNewsletterAll": "ctw",
  "nonEnglishNewsletterAll": "",
  "primaryCenter": "Carnegie Endowment for International Peace",
  "programAffiliation": "EP",
  "programs": [
    "Europe"
  ],
  "projects": [],
  "regions": [
    "Western Europe",
    "United Kingdom",
    "Iran"
  ],
  "topics": [
    "Political Reform"
  ]
}

Source: Getty

Commentary

After the UK Election, What Next for the Brexit Negotiations?

The UK has a new government. What does this mean for the Brexit negotiations between the UK and EU? What happens next?

Link Copied
By David Whineray
Published on Dec 13, 2019
Program mobile hero image

Program

Europe

The Europe Program in Washington explores the political and security developments within Europe, transatlantic relations, and Europe’s global role. Working in coordination with Carnegie Europe in Brussels, the program brings together U.S. and European policymakers and experts on strategic issues facing Europe.

Learn More

There are two main outcomes from the election of the new UK government for Brexit. The first is that the UK will leave the EU by the end of January 2020. The new British parliament will ratify the withdrawal agreement that the UK and EU have agreed, which sets the terms and conditions for the UK’s exit.

The second outcome is that the UK and the EU will begin negotiating their future relationship and partnership. The withdrawal agreement includes a one-year transition period through to the end of 2020, during which the UK will continue to adopt EU legislation, even though it will have exited the EU. This is designed to provide stability and continuity for UK and EU businesses while London and Brussels negotiate a new future economic and security relationship. A free trade agreement will be central to these talks. But the negotiations could also cover other areas, such as cooperation on crime and defense.

As the transition period lasts one year, the next big Brexit deadline is at the end of 2020. What will happen then?

There are four broad possible scenarios for the next twelve months.

First, the UK and EU agree on a comprehensive new partnership covering economic—including a free trade agreement—and security cooperation. Both the EU and UK have said that this is what they want. The challenge with this scenario is reaching and ratifying such an agreement in just one year.  For example, the recent economic and trade deal between the EU and Canada took considerably longer.

A central issue in the negotiations will be the extent to which the EU demands that the UK matches EU regulations and standards—as French President Emmanuel Macron has said is required—in exchange for an ambitious trade deal, and the extent to which the UK is willing, or not, to agree to this. A softer Brexit—more convergence than divergence—may be easier and faster to agree.

Second, no agreement is reached, and the UK and EU begin to trade on World Trade Organization rules when the transition period ends.  The challenge with this harder Brexit scenario is the potential economic implications of new tariffs. There would also be no agreement on security cooperation.

Third, to avoid a hard Brexit, the EU and UK agree to extend the transition period. The challenge with this scenario is that UK Prime Minister Boris Johnson has said he will not do this.

Fourth, a pared-down free trade deal is agreed covering, for example, trade in some goods but not services. The challenge with this scenario is, again, the potential economic implications given that most of the UK economy is made up of the services sector.

These four scenarios may not necessarily be exclusive. For example, it could be theoretically possible to agree to a phase one, pared-down trade agreement over the next year, and to also agree to extend the transition period to cover issues where no agreement has yet been reached.

The large size of the new UK government’s majority in parliament means that it will have scope to pursue any of these four scenarios it prefers.  It could seek a Brexit that is shorter, longer, closer, further, softer, or harder.  The main question now is: Which will it choose?

About the Author

David Whineray

Former Nonresident Fellow, Europe Program

David Whineray was a nonresident fellow in the Europe Program at the Carnegie Endowment for International Peace in Washington, DC.

    Recent Work

  • Article
    How Europe Views Transatlantic Relations Ahead of the 2020 U.S. Election

      Erik Brattberg, David Whineray

  • Commentary
    The Pros and Cons of a European Security Council

      David Whineray

David Whineray
Former Nonresident Fellow, Europe Program
Political ReformWestern EuropeUnited KingdomIran

Carnegie does not take institutional positions on public policy issues; the views represented herein are those of the author(s) and do not necessarily reflect the views of Carnegie, its staff, or its trustees.

More Work from Carnegie Endowment for International Peace

  • Commentary
    Strategic Europe
    Europe Should Not Let Nuclear Nonproliferation Die

    Amid uncertainty caused by the Iran war, the global drive for nonproliferation has stalled. With Europe diplomatically marginalized and countries reassessing their nuclear options, efforts to curb the spread of nuclear weapons risk becoming irrelevant.

      • Jane Darby Menton

      Jane Darby Menton

  • Europe flags citizens demonstration
    Commentary
    Strategic Europe
    EU Enlargement Forgets Europeans

    Preparing candidate countries for EU membership is no longer enough. As the enlargement process becomes a reality, the union must also prepare its own societies.

      Iliriana Gjoni

  • Commentary
    Strategic Europe
    Taking the Pulse: Was it Right to Boycott Eurovision?

    Five countries staged the biggest political boycott in Eurovision history over Israel’s participation. With the FIFA World Cup and other sporting or cultural touchstones on the horizon, are boycotts effective?

      • Rym Momtaz

      Rym Momtaz, ed.

  • Marine Le Pen and Jordan Bardella on stage during a Rassemblement National RN rally For la France du Travail in Macon in Saone et Loire France May 1 2026
    Paper
    The French Far Right’s Foreign Policy: Big Ambitions, Uncertain Direction

    The National Rally’s electoral strength, coupled with its internal fragility at a crucial political juncture, contributes to foreign policy vagueness.

      Catherine Fieschi

  • Climate desalination plant Saudi Arabia
    Paper
    Ecological Statecraft in the Midst of War: Water, Regeneration, and the Future of Gulf Security

    The U.S.-Iran war has crossed a dangerous threshold: water infrastructure in the Gulf is now a target. Ecological statecraft is no longer peripheral to security, it's part of its foundations.

      • Ali Bin Shahid

      Olivia Lazard, Ali Bin Shahid

Get more news and analysis from
Carnegie Endowment for International Peace
Carnegie global logo, stacked
1779 Massachusetts Avenue NWWashington, DC, 20036-2103Phone: 202 483 7600
  • Research
  • Emissary
  • About
  • Experts
  • Donate
  • Programs
  • Events
  • Blogs
  • Podcasts
  • Contact
  • Annual Reports
  • Careers
  • Privacy
  • For Media
  • Government Resources
Get more news and analysis from
Carnegie Endowment for International Peace
© 2026 Carnegie Endowment for International Peace. All rights reserved.