G20
The G20 is a forum of major advanced and emerging economies, representing about 85% of global GDP and two-thirds of the world's population, that coordinates economic policy through an annual leaders' summit and meetings of finance ministers and central bank governors (2026 US presidency site). It has no permanent secretariat; the presidency rotates each year. The United States holds the 2026 presidency and the UK holds it in 2027.
Who leads it
- 2026 G20 presidency: United States (summit in Miami, Florida) (since 1 December 2025) (state.gov)
The UK and the G20
The UK is a G20 member. HM Treasury states the UK will hold the G20 presidency in 2027, and the Chancellor leads on international economic and financial affairs at the G7 and G20 (gov.uk).
Key figures
| Figure | Value | Source |
|---|---|---|
| Share of global GDP (as stated by the 2026 presidency) | about 85% | US G20 presidency, read 16 October 2026 |
| Share of world population (as stated by the 2026 presidency) | two-thirds | US G20 presidency, read 16 October 2026 |
| Founded (—) | 1999, in response to the financial crises of the late 1990s | US G20 presidency, read 16 October 2026 |
| 2026 presidency (2026) | United States, from 1 December 2025; leaders' summit in Miami | US Department of State, read 20 October 2026 |
| 2026 state participants listed (2026) | 19: Argentina, Australia, Brazil, Canada, China, France, Germany, India, Indonesia, Italy, Japan, Mexico, Poland, Russia, Saudi Arabia, South Korea, Türkiye, UK, US; plus African Union and European Union | US G20 presidency, read 16 October 2026 |
| G20 members as described by the French G7 presidency (December 2025) | 19 countries including South Africa, plus the EU; African Union permanent seat since 2024 | French G7 presidency (Élysée), read 20 October 2026 |
| UK G20 presidency (as stated in 2025-26 accounts) | 2027 | HM Treasury, read 20 October 2026 |
What it decides
- No binding legal powers; leaders and ministers agree communiqués and statements (US G20 presidency).
- Meets at leaders' summits and at finance ministers and central bank governors' meetings, with working groups on set themes.
- The rotating presidency chooses priorities; the 2026 US presidency set three themes: regulatory burdens, energy supply chains, and innovation in emerging technologies.
- The 2026 finance track covers debt transparency and restructuring, cross-border payments, digital assets and global imbalances (US G20 presidency).
Records you can check
- G20 2026 presidency sitePriorities, working groups, ministerial statements and events
- HM Treasury Annual Report and Accounts 2025-26UK preparations for the 2027 G20 presidency
Common questions
Who is in the G20?
Nineteen countries plus the European Union and the African Union. The 2026 US presidency site lists Argentina, Australia, Brazil, Canada, China, France, Germany, India, Indonesia, Italy, Japan, Mexico, Poland, Russia, Saudi Arabia, South Korea, Türkiye, the UK and the US; the French G7 presidency's description of the G20 lists South Africa instead of Poland.
When does the UK host the G20?
In 2027, according to HM Treasury's 2025-26 annual report.
Where is the 2026 G20 summit?
Miami, Florida, under the US presidency that began on 1 December 2025 (US Department of State; G20 2026 site).
How much of the world economy is in the G20?
About 85% of global GDP and two-thirds of the world's population (US G20 presidency site and French G7 presidency site).
Other bodies at level 10
Sources
- G20 Miami 2026 (US presidency), read 16 October 2026
- US Department of State: United States Assumes Presidency of the Group of 20, read 20 October 2026
- Élysée (French G7 presidency): What is the G7? (includes the G20), read 20 October 2026
- HM Treasury Annual Report and Accounts, year to 31 March 2026, read 20 October 2026
- GOV.UK: The Rt Hon John Healey MP, Chancellor of the Exchequer, read 20 October 2026