Panama Papers: Enablers Still Facing Justice in 2026

Ten years after the Panama Papers leak, a Mossack Fonseca partner faces trial in Cologne, showing justice for tax cheats moves slowly but surely.

12 min read

The courtroom in Cologne was quiet on a March morning in 2026 when lawyers for Christoph Zollinger rose and read a statement their client had prepared. “In the end, I accept the consequences,” they told the judge. Zollinger, a dual Swiss-Panamanian citizen and former partner at the Panamanian law firm Mossack Fonseca, sat and listened as his own words filled the room. He did not say them himself. After more than a decade of evasion, international arrest warrants, and the slow grinding machinery of European tax enforcement, he had chosen surrogacy even for his surrender.

The moment was quiet. It was also, for the investigators and journalists who had spent years chasing threads from one of the largest data leaks in history, something close to vindication.

Zollinger’s trial in Cologne did not arrive with the speed that a case of its apparent scale might suggest. The charges against him, facilitating tax evasion on an international scale, trace back to decisions made inside Mossack Fonseca years before the Panama Papers became a household phrase. German investigators first issued an international arrest warrant for him in 2020. He did not come forward until 2024, when the warrant was suspended on the condition of his appearance. By the time his lawyers read that statement in a Cologne courtroom, the Panama Papers investigation had passed its tenth anniversary. Justice, as the story of those 11.5 million documents has repeatedly shown, does not move on a journalist’s deadline.


What Mossack Fonseca Built

To understand what Zollinger is accused of, it helps to understand the architecture his former employer constructed over decades. Mossack Fonseca was not a discreet boutique. It was, at the peak of its operations, one of the world’s largest offshore service providers, a firm that manufactured shell companies the way a factory manufactures parts, at volume, across jurisdictions, and with an almost industrial indifference to who was buying.

The firm, founded in Panama by Jürgen Mossack and Ramón Fonseca, maintained offices across dozens of countries. Its product was opacity. For a fee, wealthy clients could route their assets through anonymous shell companies registered in Panama, the British Virgin Islands, the Seychelles, or any number of jurisdictions that asked few questions and required less disclosure. The clients included, as the Panama Papers would eventually reveal, star athletes, top business executives, and sitting heads of state.

German authorities have alleged that Zollinger was “a member of a group of companies” that helped clients from around the world “set up so-called ‘offshore companies’ based in Panama or other countries known as ‘tax havens.’” The allegation is not that Zollinger invented this system. It is that he operated it, knowingly and for profit, for clients whose primary interest in offshore structures was avoiding obligations to their home governments.

Leaked records from the Panama Papers investigation showed Zollinger’s involvement in some of Mossack Fonseca’s most controversial work, including the firm’s relationship with Rami Makhlouf, a Syrian businessman subject to international sanctions. Makhlouf, a cousin of Syrian President Bashar al-Assad, had been sanctioned by the United States Treasury Department in connection with his role in the Assad government’s finances. That Mossack Fonseca continued working with him, and that Zollinger was among those involved in those decisions, is documented in the leaked files.

If convicted on the charges he currently faces, Zollinger could receive up to seven and a half years in a German prison.


April 3, 2016: The Day the Files Arrived

The Panama Papers broke on April 3, 2016. The International Consortium of Investigative Journalists, working with German newspaper Süddeutsche Zeitung and more than 100 media partners around the world, published hundreds of stories simultaneously, drawn from a trove of more than 11.5 million confidential documents that had been leaked from Mossack Fonseca. The coordination required to hold that much material without leaks, to verify it, to report it across competing newsrooms in multiple languages and legal jurisdictions, was without precedent in the history of investigative journalism.

The impact was immediate and seismic. Within days, Iceland’s prime minister, Sigmundur Davíð Gunnlaugsson, resigned after the Panama Papers revealed he and his wife owned an offshore company that held bonds in failed Icelandic banks, a direct conflict of interest he had not disclosed. In Pakistan, the papers became central to a years-long legal and political battle over Prime Minister Nawaz Sharif’s family finances. Sharif was eventually disqualified from office and later convicted, in proceedings that drew on the Panama Papers’ findings among other evidence.

The investigation also pulled back a curtain that many in positions of power had counted on staying closed. Economist Joseph Stiglitz, a Nobel laureate and longtime critic of offshore secrecy systems, described his reaction to the scope of what the papers revealed. “It exposed the magnitude of what was going on,” Stiglitz told ICIJ. “It was mind-blowing. And it exposed the fact that it wasn’t just the most nefarious individuals in, you might say, poorly governed countries, but senior officials in countries like Iceland and the U.K.”

The Panama Papers won the Pulitzer Prize. ICIJ was named second on a list of the world’s biggest tax influencers for 2016. The phrase “Panama Papers” appeared in media reports in more than 190 countries, hundreds of thousands of times. For a financial scandal rooted in documents most readers would find impenetrably technical, it had achieved something rare: it had made tax evasion viscerally interesting to ordinary people.


The Enablers: A Category the Papers Named

One of the Panama Papers’ most lasting contributions was not the exposure of any single billionaire or politician. It was the shift in public vocabulary around who is responsible for financial crime. Before 2016, most public conversation about tax evasion focused on the wealthy individuals who evaded taxes. The Panama Papers redirected attention to the infrastructure that made evasion possible: the lawyers, accountants, bankers, and formation agents who designed and sold the vehicles through which assets disappeared.

These were the enablers.

Zollinger’s case is, in the clearest terms, an enabler case. He did not, as far as prosecutors have alleged, hide his own fortune in a shell company. He helped others hide theirs. He was, if the German prosecution’s theory holds, a professional in the business of opacity, someone whose expertise was the construction of financial structures whose primary purpose was to stand between wealthy clients and the tax authorities of their home countries.

The legal reckoning for enablers has been slower and more uneven than the political fallout the Panama Papers initially generated. Governments that lost revenue to the schemes Mossack Fonseca facilitated faced the difficult task of building criminal cases from leaked documents, working across international borders, navigating the different evidentiary standards of different legal systems, and prosecuting defendants whose lawyers were, almost by definition, expert at delay.

The Financial Action Task Force, the intergovernmental body that sets global standards for anti-money laundering and counter-terrorist financing policy, has repeatedly identified professional enablers as a priority concern in the decade since the Panama Papers. Multiple member states have introduced or strengthened legislation targeting lawyers, accountants, and formation agents who help tax evasion and money laundering. The pace of reform has varied considerably.

In the United Kingdom, where several prominent figures appeared in the Panama Papers, parliamentary inquiries followed. New unexplained wealth orders gave investigators a tool to require individuals to explain the sources of their assets. In the European Union, successive directives have tightened requirements on beneficial ownership disclosure, requiring that the actual human beings behind corporate structures be registered in publicly accessible databases. Whether those databases are consistently maintained, consistently accurate, and consistently accessible is a separate and considerably less encouraging question.


Rami Makhlouf and the Limits of Consequence

The Makhlouf connection in Zollinger’s case is worth dwelling on, because it illustrates a tension that runs through the entire Panama Papers legacy. The investigation was extraordinarily good at generating consequences for some categories of person and remarkably ineffective at generating consequences for others.

Politicians in functioning democracies, where electoral pressure and independent judiciaries exist, faced real accountability. Gunnlaugsson lost his job within days. Sharif eventually lost his freedom. Business leaders in jurisdictions with aggressive regulators faced fines and prosecutions. The enablers, as Zollinger’s decade-long journey to a Cologne courtroom demonstrates, faced consequences too, though on a timeline that tests the meaning of the word.

Rami Makhlouf, the sanctioned Syrian businessman whose financial arrangements Zollinger allegedly helped help, has faced a different kind of consequence. Makhlouf fell out of favor with the Assad government in 2020, a dispute with the regime that led to asset freezes and public statements from him about his mistreatment. The fall of the Assad government in late 2024 created new complexities around accountability for the network of businessmen who had sustained it financially for decades. What those complexities produce in terms of formal legal proceedings remains, as of early 2026, unclear.

The structural problem the Panama Papers exposed, that wealthy clients in poorly governed or actively authoritarian states could use offshore infrastructure to enrich themselves and insulate their assets from any accountability, has not been solved. The papers named names and sparked conversations, but the underlying architecture of offshore secrecy that Mossack Fonseca exemplified was not dismantled by journalism alone. It required sustained regulatory and legislative pressure over years, and that pressure has been inconsistent.


The Record That Keeps Producing Cases

What makes the Cologne trial remarkable is not just that it is happening, but that it is still happening a decade after the original publication. The Panama Papers, as a source of investigative and prosecutorial material, has not been exhausted.

According to reporting by ICIJ, the investigation contributed to more than $1.36 billion in tax recoveries and fines globally, along with arrests, new laws, and government probes in dozens of countries. That number, significant as it is, almost certainly understates the total impact. Many of the legislative changes that followed the Panama Papers have no clean dollar figure attached to them. The beneficial ownership registries, the anti-enabler statutes, the new scrutiny of offshore service providers in regulatory examinations, these changes represent potential future revenue that cannot be easily quantified against the baseline of what might have been lost.

The German case against Zollinger is also notable for its jurisdiction. Germany was not, in the most obvious sense, the country most directly harmed by Mossack Fonseca’s operations. Panama was where the firm was headquartered. The British Virgin Islands, the Seychelles, and other offshore jurisdictions were where the shell companies were registered. But Germany has aggressive tax enforcement authorities and, critically, German-language journalism played a central role in the original investigation. Süddeutsche Zeitung’s reporters were among the first to receive and begin working through the leaked documents. The German public and German prosecutors paid attention in a way that reflected both journalistic and institutional culture.

The fact that Zollinger, a dual Swiss-Panamanian citizen, is facing trial in Cologne is itself a product of that culture. Swiss and Panamanian authorities have moved at their own pace. German prosecutors moved faster, and with more resources, and issued an international warrant that eventually brought Zollinger to a German courtroom.


What Changed, and What Didn’t

The tenth anniversary of the Panama Papers invites stock-taking, and the picture that emerges is genuinely mixed.

On the positive side of the ledger, the decade has seen real advances in financial transparency. Beneficial ownership registries have spread across the European Union. The Financial Crimes Enforcement Network in the United States has implemented beneficial ownership reporting requirements for corporations and LLCs, following years of advocacy that drew explicitly on the Panama Papers’ findings. International information sharing among tax authorities has improved substantially under the Common Reporting Standard developed by the Organisation for Economic Co-operation and Development.

Multiple jurisdictions have introduced or strengthened anti-enabler legislation, creating specific criminal liability for professional service providers who help tax evasion, rather than treating evasion as a crime only of the ultimate beneficiary. This shift in legal theory matters enormously for cases like Zollinger’s.

On the negative side, the offshore industry has proven adaptable. Shell company formation has migrated to jurisdictions that moved more slowly to adopt transparency reforms. The United States itself, despite the beneficial ownership rules introduced at the federal level, has remained a destination for opaque corporate structures, particularly through states with permissive formation rules. Delaware and South Dakota, to name the most frequently cited examples, have continued to attract formations that raise questions their registration agents do not appear eager to answer.

The broader inequality that the Panama Papers illuminated, the systematically different relationship that the very wealthy have to taxation compared to everyone else, has not been corrected by a decade of reporting and legislative response. The documents revealed not just that tax evasion was widespread among the wealthy, but that an entire professional class existed to serve their desire to pay less. That professional class still exists. Its tools have shifted, some jurisdictions have become less hospitable, and its practitioners face greater legal risk than they did in 2015, but the fundamental economic incentive that created Mossack Fonseca has not disappeared.

Stiglitz’s description of the revelation as “mind-blowing” captures something important about how the papers were received in 2016. For ordinary people who pay their taxes without the benefit of offshore advisors and shell company formation agents, the scale of what the documents described was genuinely shocking. Whether that shock has translated into durable political will to remake the global tax architecture is a question that the tenth anniversary does not answer cleanly.


Cologne, March 2026

Back in the Cologne courtroom, after the lawyers finished reading Zollinger’s statement, the proceeding continued. The trial had not concluded. The verdict was not in. The defendant who had spent more than a decade as a fugitive from a German arrest warrant was present, represented, and had acknowledged, through his lawyers if not in his own voice, that consequences were coming.

For the investigators and reporters who first untangled the Mossack Fonseca files in 2015, watching the German case unfold a decade later requires a particular kind of patience. Investigative journalism operates on publication deadlines. Criminal justice operates on a different clock entirely. The Panama Papers were published in 2016. Zollinger’s arrest warrant came in 2020. He came forward in 2024. His trial opened in 2026. Each of these dates marks a real event in a real legal process, but the distance between them also marks every year in which the consequences remained abstract.

What the Cologne trial represents, for all its deliberate pace, is the persistence of accountability. The documents leaked from Mossack Fonseca did not expire. The German prosecutors who built their case from those documents did not move on. The international legal machinery that issued and ultimately honored the warrant did not forget. And Christoph Zollinger, a former partner at a law firm that helped wealthy clients disappear their money across borders, sat in a courtroom in Germany and listened as his lawyers told the judge he accepted the consequences.

Ten years is a long time. It is also, in the history of offshore financial crime, not particularly unusual. The question the Cologne proceeding poses is not whether justice is slow. Everyone who has covered financial crime already knows the answer to that. The question is whether, a decade after the Panama Papers forced a global conversation about tax evasion and the professional enablers who sustain it, the machinery of accountability has gotten more reliable, more resourced, and more capable of reaching the people who built and operated the infrastructure of secrecy.

The answer, measured against the evidence available in early 2026, is: somewhat. More than before. Not enough.

The lawyers closed their folders. The courtroom in Cologne moved to the next item on its docket. Outside, the offshore industry continued its work.

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