Department of the Treasury

The leader of the Trump transition team for the Treasury Department sends an email requesting that Thomas Krause be incuded on the "day 1 team, to lead on Fiscal Services modernization efforts."

Treasury Chief of Staff Dan Katz sends an email stating that DOGE staff need to be given access to pause USAID payments

Marko Elez is provided with a laptop from Treasury with with copies of the source code for PAM, SPS, and ASAP in a separate, secure coding environment known as a "secure code repository" or "sandbox."

Treasury Secretary Scott Bessent writes a letter to Congress about Scott Krause having read-only access but doesn't mention Marko Elez

Judge Colleen Kollar-Kotelly rules that DOGE should only be granted read access to government systems

A legal affadavit states a BFS payment was presented to State Department to not process after it was reviewed by DOGE

A legal affadavit from a Treausry employee states Marko Elez was accidentally given edit access to BFS systems but did not use it

White House pressures the IRS to sign a MOU granting DOGE expanded access to internal systems

White House official confirms one DOGE staffer will be working with an IRS employee to access IRS systems

Privacy advocates sue to stop DOGE acess to IRS systems

Treasury Secretary Scott Bessent says only one person from DOGE is "looking at an outdated IT system, that's all they're doing."

John York, a senior counselor to Bessent, wrote in a sworn statement that Ryan Wunderly would take over Marko Elez's work at the BFS

The White House and Treasury Department come to an agreement about how DOGE access to IRS systems will be structured

In a court filing, Treasury says it is adding two more DOGE staffers exclusively focused on the IRS

Treasury agrees to block Gavin Kliger from the IDRS system and provide him only with anonymized data

The Memorandum of Understanding (MOU) between the IRS and DOGE is signed. It reportedly will not let DOGE access individual tax returns

The Post reports that DOGE is being granted access to only anonymized data from IDRS

Gavin Kliger and Sam Corcos, DOGE representatives embedded at the IRS, on Friday asked IRS lawyers to assist in creating an "omnibus" agreement with other federal agencies that would allow a broad swath of federal officials to cross-reference benefits rolls with taxpayer data

The Government Accountability Office (GAO) starts an audit of how DOGE handled data at several agencies

The head of HR, Traci DiMartini, for the IRS is placed on administrative leave for refusing to bring in employees over the weekend to officially onboard Sam Corcos

The acting chief counsel of the IRS, William Paul, is removed from his role and replaced by Andrew De Mello, who is seen as more supportive of DOGE's work at the agency

Ruling in American Federation of Teachers et al v. Bessent et al, Judge Boardman issues a preliminary injunction against DOGE access to internal systems at the Departoment of the Treasury where the justification for access was "the DOGE agenda" (i.e., all of them)

President Trump issues an executive order mandating that all payments flow through Treasury that agencies must modify SORNs to share data with Treasury as "routine use"

Julie Bednar, a senior advisor in human resources at DOI, is pulled into a call with Katrine Trampe and Gavin Kliger calling from IRS who asked to speak to the system owner for FPPS directly

DOGE abruptly places 50 technologists working at the IRS on administrative leave

Senior technological positions are terminated including director of cybersecurity architecture and implementation, deputy chief information security officer, and acting director of security risk management. Only the CTO was spared.

In a 2-1 vote, the 4th U.S. Circuit Court of Appeals lifted a stay against DOGE data access at the Treasury, OPM and Department of Education imposed in the case American Federation of Teachers v. Bessent (D. Maryland 2025)

The IRS and DHS executed a Memorandum of Understanding (MOU) for data sharing between both agencies. Although DOGE is not named specifically in this agreement, ICE is allowed to designate authorized individuals to access the shared data. AI usage must also be reviewed first by the IRS.

A hackathon at IRS of DOGE engineers and some senior IRS developers kicks off to create a "Mega API." Reportedly, the company Palantir is also involved

The hackathon to create a "Mega API" at the IRS concludes. DOGE engineers are reportedly confidenct they will be able to deploy it in 30 days.

In a legal filing, the government describes the DOGE team at Treasury of consisting of six people, some previously unknown

Judge Vargas rules in New York et al vs. Donald Trump that Ryan Wunderly should be granted access to Treasury systems

A new DOGE staffer (Roland Shen) who works for the payments startup Ramp has reportedly been granted access to BFS systems

After two months of DOGE-directed cuts, IRS has lost 3600 (31% of that workforce) of the workers who perform audits

IRS Input Correction Operation employees working at the Kansas City office receive notifications they must work on Saturdays for 2 weekends in May to handle the growing backlog of returns flagged with errors

The ranking Democratic member of the House Committee on Oversight and Government Reform sends a letter requesting that the IRS Inspector General investigate the circumstances of the "hackathon"

Judge Vargas, ruling in New York v. Donald Trump lifted restrictions on DOGE staff accessing Treasury systems, saying that the government had demonstrated it was following proper procedures