Palantir Is Helping Trump’s IRS Conduct “Massive-Scale” Data Mining

military contractor Palantir is helping the IRS analyze dozens of different data sets on Americans to investigate a broad range of financial crimes, according to records shared with The Intercept.

Since 2018, the Internal Revenue Service’s Criminal Investigation division has used Palantir’s Lead and Case Analytics platform to aggregate and analyze a sprawling list of sensitive federal databases and data sets.

Public records detailing Palantir’s IRS contract, obtained by the nonprofit watchdog group American Oversight and shared exclusively with The Intercept, reveal the immense volume of data plugged into the military contractor’s software. The LCA uses both Palantir’s Gotham and Foundry applications to facilitate “analysis of massive-scale data to find the needle in the hay stack,” the contract paperwork says.

Documents indicate the IRS has paid Palantir over $130 million for these services to date.

Palantir’s LCA is ostensibly directed toward cracking down on fraud, money laundering, and other financial crimes. According to a 2024 agency privacy impact assessment, IRS “Special agents and investigative analysts … utilize the platform to find, analyze, and visualize connections between disparate sets of data to generate leads, identify schemes, uncover tax fraud, and conduct money laundering and forfeiture investigative activities.”

The IRS use of the software, launched under Trump’s first term and expanded under Biden, is now in the hands of an IRS Criminal Investigations office that has drastically scaled back its pursuit of tax cheats and pivoted, under Trump’s direction, toward investigating “left-leaning groups,” the Wall Street Journal reported in October.

“The real concern is the consolidation of vast amounts of sensitive personal data into a single system with minimal transparency — especially one built and operated by a contractor like Palantir, whose business model is premised on integrating data and expanding surveillance capabilities,” American Oversight director Chioma Chukwu said in a statement to The Intercept. “Its platforms have been used in deeply troubling contexts, from immigration enforcement to predictive policing, with persistent concerns about overreach, bias, and weak oversight.”

Palantir did not respond to a request for comment, nor did the IRS.

The contract documents reviewed by The Intercept reveal that these “disparate sets of data” are vast. Palantir’s LCA allows the IRS to quickly search and visualize “connections from millions of records with thousands of links” between databases maintained by the IRS and other federal agencies. According to the contract documents, this data includes individual tax form and tax returns as well as Affordable Care Act data, bank statements, and transactions, and “all available” data compiled by the Treasury Department’s Financial Crimes Enforcement Network.

Its view apparently extends to cryptocurrencies including bitcoin, Ethereum, Litecoin, and Ripple. “The application would sit on top of a singular repository of identified wallets from seized servers utilizing dark web data obtained from exchangers such as Coinbase,” the documents note.

The program places an emphasis on mapping social relationships between the targets of an investigation. That includes analyzing a “network of people and the relationships and communications between them,” such as “calls, texts, [and] emails events.” The use of “IP address analysis” within LCA allows the IRS to “Identify suspects more easily” and “Establish (new) relationships among actors.”

These investigative functions are continuously updated, the materials say, through ongoing close work between Palantir engineers and IRS personnel.

The intermingling of sensitive data on millions of Americans comes at a time of increased global skepticism and opposition toward Palantir, which, despite its military-intelligence origins, has a thriving business with civilian agencies like the IRS. The use of Palantir software at the U.K.’s National Health Service, for example, has created an ongoing political controversy across Britain, while a similar contract with the New York City public hospital network was recently canceled following public protest.

The contract is also active at a time when IRS Criminal Investigations has been coopted to aid in the broader Trump administration’s aggressive agenda. In July, ProPublica reported that the agency was working with U.S. Immigration and Customs Enforcement to provide “on demand” data to accelerate deportations. Last year, the New York Times reported that Palantir, founded by Trump ally Peter Thiel, was central to an administration effort to increase data-sharing across federal agencies.

The company’s right-wing politics and eagerness to facilitate U.S. and Israeli military aggression abroad, NSA global surveillance, and ICE deportations has also made many weary of its access to incredibly sensitive personal data. A recent post on the company’s Palantir’s X account summarizing a book by CEO Alex Karp triggered an immediate backlash from those unnerved by the manifesto’s fascistic bent. The bullet points extolled the virtue of arms manufacturing, argued the Axis powers were unfairly punished after World War II, called for a reinstatement of the draft, condemned cultural pluralism, and claimed that wealthy elites are unfairly persecuted.

“When the government can map relationships, track behavior, and generate investigative leads across data sets at this scale, the question isn’t just what it can do — it’s who it will be used against,” Chukwu said. “Entrusting that infrastructure to a company known for opaque, security-state deployments only heightens those risks.”