Every year, the leaders of the world’s largest economies sit around one table to argue about debt, trade, climate and conflict. That table is the G20: the most powerful economic forum on the planet that is not quite an organisation at all, with no headquarters, no secretary-general and no binding laws. Yet what happens there ripples through central banks, finance ministries and markets worldwide. To understand the G20 is to understand how the modern global economy is actually governed — informally, by consensus, and often in the shadow of crisis.

Why the G20 was created: from 1999 to the 2008 crisis

The G20 was born in 1999, in the aftermath of the Asian financial crisis of the late 1990s. That crisis had shown that financial turmoil in one region could spread rapidly across borders, and that the small club of wealthy nations — the G7 — no longer reflected where global economic weight actually sat. So finance ministers and central bank governors from a broader set of countries began meeting to talk about financial stability.

For its first decade, the G20 stayed in the background: a useful but low-profile gathering of finance officials. Then came the global financial crisis of 2008. With banks collapsing and trade seizing up, the forum was elevated to a leaders’ summit almost overnight, the first held in Washington in November 2008. The message was clear: when the world economy is on fire, you need the countries that actually drive it in the same room — including China, India and Brazil, not just the old Western powers.

Who sits at the table: 19 countries and two unions

The G20 brings together 19 individual countries: Argentina, Australia, Brazil, Canada, China, France, Germany, India, Indonesia, Italy, Japan, Mexico, the Republic of Korea, Russia, Saudi Arabia, South Africa, Türkiye, the United Kingdom and the United States. Alongside them sit two regional blocs: the European Union, which has been a member since the beginning, and the African Union, which was admitted at the 2023 summit in New Delhi under India’s presidency.

Together, the members account for roughly 85 per cent of global GDP, about three-quarters of international trade and around two-thirds of the world’s population. Those shares are the source of the G20’s authority. It does not govern by law; it governs by weight. When economies this large agree on a direction — on banking rules, debt relief or tax cooperation — the rest of the world feels it whether or not it was invited.

That is also the forum’s most persistent criticism: more than 170 countries are not members, and many argue that decisions affecting them are taken in rooms they cannot enter. The African Union’s admission was presented as a partial answer.

How a G20 year actually works: presidencies, Sherpas and tracks

With no permanent secretariat, each year one member holds the rotating presidency — setting the agenda, organising meetings and hosting the leaders’ summit. The past, current and incoming presidencies form a three-member “troika” for continuity. Recent summits were held in New Delhi (2023), Rio de Janeiro (2024) and Johannesburg (2025); the United States holds the 2026 presidency, with the summit scheduled in Miami that December.

The real work happens through two parallel tracks. The Finance Track brings together finance ministers and central bank governors to deal with macroeconomic policy, financial regulation and issues like debt and taxation. The Sherpa Track handles everything else — climate, energy, development, health, digital policy and geopolitics — negotiated by each leader’s personal emissary, the “Sherpa.”

Around these tracks sit engagement groups — the B20 for business, C20 for civil society, T20 for think tanks, Y20 for youth and others — whose advisory recommendations feed outside perspectives into the process.

What the G20 actually decides — and what it cannot

Crucially, G20 decisions are not laws. Each summit ends with a leaders’ declaration, adopted by consensus — a political commitment, not a binding treaty. No country can be fined or expelled for ignoring it. The G20 works through peer pressure and coordinated action, with members implementing norms through their own laws and institutions like the IMF and World Bank.

That sounds weak, but coordination at this scale can be powerful. The classic example is the 2008–09 crisis response, when leaders agreed on simultaneous stimulus and pledged to avoid the protectionist spiral that deepened the Great Depression. During the pandemic, the group backed the Debt Service Suspension Initiative, pausing debt payments for the poorest countries.

The limits show up just as clearly. When members fundamentally disagree — on fossil fuels, on trade, on wars involving member states — declarations get watered down to the lowest common denominator, or contentious paragraphs are simply left vague. Because everything requires consensus, a single dissenting major power can blunt the entire outcome. The G20 is therefore best understood as a crisis manager and agenda-setter, not a world government.

The criticisms that will not go away

Criticism of the G20 falls into three buckets. Legitimacy: a self-selected club of large economies was never elected by anyone, and most countries — and the world’s poorest people — have no seat. Implementation: declarations are easy to sign and hard to enforce, and follow-through on past commitments is often patchy. Effectiveness: sceptics question whether an annual summit justifies the enormous diplomatic machinery behind it.

Defenders answer each charge: the African Union’s membership and engagement groups on legitimacy; the market-moving weight of even partial compliance on implementation; and 2008 on effectiveness — when the system was at risk, the G20 was the only table big enough to coordinate a response. Whether that justifies the forum in calmer years is debated before every summit.

FAQs

Is the G20 a formal international organisation?

No. Unlike the United Nations, the G20 has no charter, headquarters or permanent staff. It is an informal forum whose power comes from its members’ economic weight and the political signal of consensus, not legal authority.

How is the G20 different from the G7?

The G7 is a smaller club of advanced Western economies plus the EU. The G20 is larger and far more diverse: it includes major emerging economies such as China, India, Brazil, Indonesia and Saudi Arabia, which is why its decisions carry more global economic weight.

Who leads the G20 each year?

The presidency rotates annually among members. The presiding country sets the agenda and hosts the summit, supported by the “troika” of the previous, current and next presidencies to preserve continuity from year to year.

Why was the African Union admitted?

The African Union became a permanent member at the 2023 New Delhi summit, presented as correcting Africa’s under-representation in global economic governance and giving the continent a standing seat at the table.

Compiled by the Khabar 24h Editorial Desk from publicly available sources.