For makers and artists, the rise of Palantir’s Foundry API at the IRS signals a broader shift where government data access is increasingly mediated by private tech giants. While this might seem distant from creative tools, it establishes a precedent for how complex, siloed data ecosystems are modernised—often at the expense of transparency. The new system aims to unify disparate financial records into a single investigative engine, raising questions about who controls the underlying infrastructure of public sector intelligence.
The contract revealed
Documents obtained by 404 Media through a Freedom of Information Act (FOIA) request detail a partnership between the Internal Revenue Service and Palantir. The goal is to deploy an Application Programming Interface (API) that makes IRS data readily available to any application the agency chooses to connect. This initiative specifically targets the Criminal Investigation (CI) division, seeking to merge traditionally separate systems into one overarching platform for financial crime detection.
While the Department of the Treasury previously announced the award of a contract to Palantir to build a common API layer, these newly released papers offer granular insight into the agency’s operational objectives. One document states that as the IRS’ mission expands due to legislative mandates and oversight requirements, its data systems have become “increasingly complex and siloed.” The proposed solution is to “modernize data access, enhance secure information sharing across business operations, and accelerate compliance capabilities.”
Modernising the Criminal Investigation division
In September, the Treasury Department noted that this partnership would support “federal employees, increasing efficiency for their professional duties.” However, recent reporting by The Intercept clarifies that Palantir is helping the IRS analyse dozens of datasets to probe financial crimes.
One of the obtained documents outlines a specific objective for the CI modernisation project: to provide modern tools for investigating “complex criminal financial crimes, organized crime, tax crimes, protecting the US financial system and other US Treasury Department missions.”
The current state of chaos
The documents highlight a stark reality regarding how CI currently manages information. The agency lacks a centralised law enforcement case management system. Consequently, it cannot perform deconfliction, lead tracking, or maintain a unified chain of custody. Investigative file sharing remains fragmented between CI, Chief Counsel, the Department of Justice, and civil counterparts.
Instead of a digital repository, case data is currently stored in Windows folders on individual agents’ computers. These are shared via local office folders that back up to regional servers, with physical evidence kept in locked filing cabinets and grand jury storage rooms. This patchwork approach contrasts sharply with the “single overarching system” Palantir is now building.
Legal and operational friction
The timing of this expansion coincides with legal pushback against data sharing practices. In February, a federal judge ordered the IRS to cease sharing residential addresses with Immigration and Customs Enforcement (ICE), a move Politico reported at the time.
Neither Palantir nor the Department of the Treasury responded to requests for comment regarding these specific documents.
The full cache of responsive documents can be read via the following links:
Key takeaways
- 404 Media has obtained FOIA documents confirming Palantir is building a unified API for the IRS Criminal Investigation division to consolidate disparate financial crime data.
- The current lack of centralised case management forces agents to rely on local Windows folders and physical filing cabinets, creating significant operational inefficiencies.
- The new system aims to accelerate compliance and intelligence sharing, aligning with Treasury goals to protect the US financial system while centralising control over data access.
- These developments occur alongside ongoing legal challenges regarding the IRS’ ability to share taxpayer data with other government agencies like ICE.
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