One of the world's poorest and smallest economies, the Comoros is made up of three islands that are hampered by inadequate transportation links, a young and rapidly increasing population, and few natural resources. The low educational level of the labor force contributes to a subsistence level of economic activity and a heavy dependence on foreign grants and technical assistance. Agriculture, including fishing, hunting, and forestry, accounts for about 50% of GDP, employs a majority of the labor force, and provides most of the exports. Export income is heavily reliant on the three main crops of vanilla, cloves, and ylang ylang (perfume essence); and the Comoros' export earnings are easily disrupted by disasters such as fires and extreme weather. Despite agriculture’s importance to the economy, the country imports roughly 70% of its food; rice, the main staple, and other dried vegetables account for more than 25% of imports. Remittances from about 300,000 Comorans contribute about 25% of the country’s GDP. France, Comoros’s colonial power, remains a key trading partner and bilateral donor.
Comoros faces an education system in need of upgrades, limited opportunities for private commercial and industrial enterprises, poor health services, limited exports, and a high population growth rate. Recurring political instability, sometimes initiated from outside the country, and an ongoing electricity crisis have inhibited growth. The government, elected in mid-2016, has moved to improve revenue mobilization, reduce expenditures, and improve electricity access, although the public sector wage bill remains one of the highest in Sub-Saharan Africa. In mid-2017, Comoros joined the Southern African Development Community with 15 other regional member states.
| 1990 | 2000 | 2010 | 2018 | |
| GNI, Atlas method (current US$) (billions) | 0.4 | 0.39 | 0.95 | 1.15 |
| GNI per capita, Atlas method (current US$) | 980 | 730 | 1,380 | 1,380 |
| GNI, PPP (current international $) (billions) | 0.65 | 0.98 | 1.55 | 2.63 |
| GNI per capita, PPP (current international $) | 1,580 | 1,800 | 2,250 | 3,160 |
| GDP (current US$) (billions) | 0.43 | 0.35 | 0.91 | 1.18 |
| GDP growth (annual %) | 5.1 | 10.8 | 3.8 | 3.4 |
| Inflation, GDP deflator (annual %) | 2.2 | -4.5 | 1.7 | 1.2 |
| Agriculture, forestry, and fishing, value added (% of GDP) | 29 | 29 | 30 | 33 |
| Industry (including construction), value added (% of GDP) | 12 | 12 | 12 | 9 |
| Exports of goods and services (% of GDP) | 9 | 9 | 10 | 13 |
| Imports of goods and services (% of GDP) | 27 | 27 | 30 | 30 |
| Gross capital formation (% of GDP) | 18 | 18 | 18 | 15 |
| Revenue, excluding grants (% of GDP) | .. | .. | .. | .. |
| Net lending (+) / net borrowing (-) (% of GDP) | .. | .. | .. | .. |
| States and markets | ||||
| Time required to start a business (days) | .. | .. | 22 | 16 |
| Domestic credit provided by financial sector (% of GDP) | 12 | 8.2 | 9.2 | .. |
| Tax revenue (% of GDP) | .. | .. | .. | .. |
| Military expenditure (% of GDP) | .. | .. | .. | .. |
| Mobile cellular subscriptions (per 100 people) | 0 | 0 | 24 | 59.9 |
| Individuals using the Internet (% of population) | 0 | 0.3 | 5.1 | 8.5 |
| High-technology exports (% of manufactured exports) | .. | .. | .. | 0 |
| Statistical Capacity score (Overall average) | .. | .. | 50 | 42 |
| Global links | ||||
| Merchandise trade (% of GDP) | 16 | 16 | 28 | 27 |
| Net barter terms of trade index (2000 = 100) | 86 | 100 | 78 | 73 |
| External debt stocks, total (DOD, current US$) (millions) | 185 | 232 | 278 | 283 |
| Total debt service (% of exports of goods, services and primary income) | 2.9 | 4.8 | 4.7 | 4.8 |
| Net migration (thousands) | -3 | -10 | -10 | -10 |
| Personal remittances, received (current US$) (millions) | 10 | 32 | 87 | 173 |
| Foreign direct investment, net inflows (BoP, current US$) (millions) | 0 | 0 | 8 | 6 |
| Net official development assistance received (current US$) (millions) | 44.9 | 19.3 | 69.9 | 90.9 |