Illicit financial flows (IFFs) are money that is illegally earned, transferred, or used as it moves across borders. They cover the proceeds of crime and corruption as well as tax evasion and trade misinvoicing, and they drain huge sums from developing economies each year.
Key takeaways
- Illicit financial flows are illegally earned, moved, or used money crossing borders.
- They include crime, corruption, tax evasion, and commercial misinvoicing.
- IFFs are broader than money laundering, though the two overlap.
- UNCTAD estimated Africa loses about $88.6 billion a year to IFFs.
- They hit developing countries hardest, draining money needed for development.
- Fighting them relies on transparency, tax cooperation, and AML controls.
On this page
What they areTypes of IFFsHow they moveThe scaleIFFs vs launderingThe impactHow they are tackledIFFs and AMLFAQsRead more
$88.6B
Estimated annual loss to Africa from illicit financial flows
Source: UNCTAD, 2020
~$1T
Estimated yearly illicit outflows from developing countries
Source: Global Financial Integrity
$800B to $2T
Laundered worldwide each year, an overlapping problem
Source: UNODC
What are illicit financial flows?
Illicit financial flows are money that breaks the law at some point in its journey across borders. The money may be illegally earned, illegally moved, or illegally used, and any one of these makes the flow illicit.
The term is deliberately broad. It captures not only the proceeds of crime, but also money hidden to dodge tax or moved through dishonest trade pricing, even where the underlying business is legal.
IFFs are a global concern because the money crosses borders and escapes oversight. Read more: much of it is later hidden through money laundering.
Types of illicit financial flows
IFFs are usually grouped into three broad types. They differ in where the illegality lies.
- Criminal. Proceeds of crimes such as drug trafficking, fraud, and smuggling.
- Corrupt. Bribes and stolen public funds moved out of a country.
- Commercial. Money hidden through tax evasion and trade misinvoicing, often by otherwise legal businesses.
The commercial category is the largest and the hardest to see, because it hides inside ordinary-looking trade and tax arrangements. Estimates suggest it accounts for the bulk of illicit flows, which is why so much attention has turned to trade and tax transparency.
How illicit financial flows move
IFFs use a range of methods to cross borders unseen. Most rely on hiding the money’s true nature or owner.
- Trade misinvoicing. Over- or under-pricing goods to move value across borders.
- Money laundering. Disguising criminal proceeds so they can be moved and used.
- Hidden ownership. Shell companies and nominees that conceal who really benefits.
- Tax evasion schemes. Shifting profits to low-tax or secretive places.
Trade misinvoicing is thought to be the single largest channel, precisely because global trade is so vast that mispricing hides easily within it.
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The scale of illicit financial flows
The sums involved are staggering, though hard to measure precisely. Because the money is hidden by design, all figures are estimates.
UNCTAD estimated that Africa alone loses about $88.6 billion a year to illicit financial flows (UNCTAD, 2020). Global Financial Integrity has estimated that developing countries as a whole lose around a trillion dollars each year in illicit outflows. Whatever the exact number, it dwarfs the aid many of these countries receive.
That gap between what leaves and what comes in is what makes IFFs a development issue, not just a crime one.
Illicit financial flows vs money laundering
IFFs and money laundering overlap, but they are not the same. The difference is one of scope.
Money laundering is about disguising the criminal origin of money. Illicit financial flows are broader: they include laundering, but also tax evasion and trade misinvoicing that may involve legally earned money moved illegally. In short, laundering is one way IFFs happen, not the whole of it.
| Money laundering | Illicit financial flows | |
|---|---|---|
| Focus | Hiding criminal origin | Any illegal earning, moving, or use |
| Includes | Proceeds of crime | Crime, corruption, and tax or trade abuse |
| Money involved | Illegally earned | Sometimes legally earned, illegally moved |
So every laundered dollar can be an illicit flow, but not every illicit flow is laundering.
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The impact of illicit financial flows
The heaviest cost of IFFs falls on developing countries. Money that should fund schools, hospitals, and roads leaves instead, often for wealthier or more secretive places.
Beyond the lost funds, IFFs weaken institutions, fuel corruption, and widen inequality. They also undermine trust, since honest taxpayers and businesses compete against those who cheat. This is why bodies such as the United Nations treat cutting IFFs as a development goal.
The effect compounds over time. Money that leaves cannot be taxed, invested, or spent at home, so each year of outflows leaves a country a little poorer and a little less able to fund the very institutions that might stop the next round.
How illicit financial flows are tackled
Fighting IFFs takes more than any one country can do alone, because the money crosses borders. The main tools work together.
- Transparency. Beneficial ownership registers that reveal who is behind companies.
- Tax cooperation. Countries sharing tax information to catch evasion.
- AML controls. The screening, monitoring, and reporting that catch dirty money.
- Trade scrutiny. Checks on pricing to catch misinvoicing.
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Illicit financial flows and AML
AML is one of the main defenses against IFFs. The same controls that catch laundering also catch much of the money moving illicitly across borders.
When a bank verifies who owns a company, screens a cross-border payment, or reports a suspicious transfer, it is helping to stem IFFs. A firm’s AML work, in other words, is part of a much larger effort to keep illicit money from flowing unseen.
This is worth remembering on days when compliance feels like paperwork. The same checks that satisfy a regulator also help keep money in the countries that need it, which gives the routine work a larger purpose.
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Frequently asked questions
What are illicit financial flows?
Illicit financial flows, or IFFs, are money that is illegally earned, transferred, or used as it moves across borders. They cover the proceeds of crime and corruption as well as tax evasion and trade misinvoicing, even where the underlying business is legal. IFFs drain large sums from developing economies each year.
What are the types of illicit financial flows?
IFFs are usually grouped into three types: criminal, such as the proceeds of drug trafficking and fraud; corrupt, such as bribes and stolen public funds; and commercial, such as tax evasion and trade misinvoicing by otherwise legal businesses. The commercial category is the largest and the hardest to detect.
What is the difference between illicit financial flows and money laundering?
Money laundering disguises the criminal origin of money. Illicit financial flows are broader: they include laundering but also tax evasion and trade misinvoicing, which may involve legally earned money moved illegally. Laundering is one way illicit flows happen, so every laundered dollar can be an illicit flow, but not every illicit flow is laundering.
How much money is lost to illicit financial flows?
The exact figure is unknown because the money is hidden by design, but estimates are large. UNCTAD estimated Africa alone loses about $88.6 billion a year. Global Financial Integrity has estimated developing countries as a whole lose around a trillion dollars each year in illicit outflows, which dwarfs the aid many receive.
How do illicit financial flows move across borders?
IFFs move through trade misinvoicing, where goods are over- or under-priced to shift value, money laundering that disguises criminal proceeds, hidden ownership through shell companies and nominees, and tax evasion schemes that shift profits to low-tax or secretive places. Trade misinvoicing is thought to be the single largest channel.
What is trade misinvoicing?
Trade misinvoicing is the deliberate over- or under-pricing of goods on trade documents to move value across borders illegally. For example, under-pricing exports lets money stay abroad, while over-pricing imports moves money out of a country. Because global trade is so vast, misinvoicing hides easily within it, making it a major channel for illicit financial flows.
Why are illicit financial flows a problem for developing countries?
IFFs hit developing countries hardest because money that should fund schools, hospitals, and infrastructure leaves the country instead. Beyond the lost funds, they weaken institutions, fuel corruption, and widen inequality. The amounts leaving often exceed the aid these countries receive, which is why cutting IFFs is treated as a development goal.
How are illicit financial flows tackled?
IFFs are tackled through beneficial ownership transparency that reveals who is behind companies, tax cooperation where countries share information to catch evasion, anti-money laundering controls that catch dirty money, and trade scrutiny to detect misinvoicing. Because the money crosses borders, these efforts require cooperation between countries rather than action by any one alone.
How do illicit financial flows relate to AML?
Anti-money laundering is one of the main defenses against illicit financial flows. The same controls that catch laundering, such as verifying company ownership, screening cross-border payments, and reporting suspicious transfers, also catch much of the money moving illicitly. A firm’s AML work is part of the larger effort to stem illicit flows.
Are all illicit financial flows illegal?
Yes, by definition an illicit financial flow involves illegality at some point, whether in how the money was earned, moved, or used. However, the underlying business can sometimes be legal, with the illegality lying in tax evasion or dishonest trade pricing. This is what makes the commercial category of IFFs harder to detect than outright crime.
Where does the money from illicit financial flows end up?
The money does not disappear; it lands somewhere. Funds drained from poorer countries often end up in property, banks, and companies in wealthier or more secretive financial centers. This is why transparency in rich countries matters as much as enforcement in the countries losing the money, since both ends of the flow are involved.
Who measures illicit financial flows?
Bodies such as UNCTAD, the United Nations, and Global Financial Integrity produce estimates of illicit financial flows. Because the money is hidden, all figures are estimates based on data such as trade gaps and capital movements. The United Nations includes reducing illicit financial flows among its Sustainable Development Goals.
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Last reviewed July 12, 2026 · 11 min read · Written for compliance and risk professionals · By the WhoWiki editorial team
Key takeaway: illicit financial flows are money that is illegally earned, moved, or used across borders, and they drain vast sums from developing economies.