OVERVIEW
This report distills insights from interviews with over 70 current and former federal officials who designed and implemented the Inflation Reduction Act's clean energy tax credit provisions—highlighting what worked, what proved challenging, and what future policymakers can learn.
REPORT STRUCTURE
This report translates the experiences of the career civil servants and appointees who implemented the IRA’s new and expanded clean energy tax credits into a structured set of conclusions and recommendations.
The report is divided into three sections:
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[1]
Design
Addresses when tax credits are the most appropriate policy tool to meet particularly in the context of clean energy and greenhouse gas (GHG) emissions reduction. Assesses how statutory language can create or reduce implementation friction, and when to pair credits with complementary policy and implementation tools.
[2]
Implementation
Examines the strategic leadership, organizational structures, and human capital investments required for the executive branch to execute an effective interagency process to implement tax credits focused on clean energy and GHG emissions reduction.
Addresses when tax credits are the most appropriate policy tool to use, particularly in the context of clean energy and greenhouse gas (GHG) emissions reduction. Assesses how statutory language can create or reduce implementation friction, and when to pair credits with complementary policy and implementation tools.
Examines the strategic leadership, organizational structures, and human capital investments required for the executive branch to execute an effective interagency process to implement tax credits focused on clean energy and GHG emissions reduction.
[3]
Compliance and Uptake
Explores the role of the federal government in ensuring taxpayers and filers, including those with limited prior exposure to the tax code, can discover and access tax credits. Discusses available tools, including customer-facing IT, guidance, verification regimes, and technical assistance.
INSIGHTS
The implementation of the IRA’s clean energy tax credits surfaced six key insights about how large-scale tax policy performs in practice. Reflecting across legislative design, executive branch implementation, and taxpayer compliance and uptake, consistent patterns emerged about what accelerates progress, what creates friction, and what determines who ultimately participates.
These insights distill cross-cutting themes observed throughout the implementation process. They provide a high-level framework for understanding how legislative design choices interact with administrative capacity, interagency coordination, and operational systems to shape outcomes.
The sections that follow translate these insights into more detailed lessons learned. Organized by design, implementation, and compliance and uptake, they offer specific observations and recommendations grounded in the experience of turning statute into action.
INSIGHT 1
Design determines success
Legislative choices impact speed, administrative burden, and who ultimately benefits.
Design
Tax credits work best when barriers are primarily financial and markets are ready to respond. Simplicity and clarity reduce friction and uncertainty.
Implementation
Agencies must proactively prepare for statutory ambiguities and align on trade-offs to maintain implementation speed.
Compliance & Uptake
Complexity can increase compliance burdens, raise reliance on outside advisors, and disadvantage smaller or less-resourced actors.
INSIGHT 2
Speed requires empowered leadership
Rapid execution depends on clear authority and disciplined decision-making.
Design
Design should anticipate bottlenecks and resource agencies for implementation from day one.
Implementation
A single, empowered arbiter prevents deadlock and keeps timelines on track.
Compliance & Uptake
Faster guidance improves market certainty and accelerates investment decisions.
INSIGHT 3
Collaboration must be BUILT
Effective implementation requires deliberate coordination across agencies with distinct expertise and authorities.
Design
Statutes should (where appropriate) explicitly authorize technical consultation and fund cross-agency collaboration.
Implementation
Agencies must invest early to clarify roles, build trust, and establish disciplined coordination processes.
Compliance & Uptake
Sustained relationships across the interagency and with outside stakeholders are essential to ensure successful uptake.
INSIGHT 4
Human capital is CRITICAL
Ambitious policy succeeds when government invests in the people who design, interpret, and deliver it.
Design
Future legislation should fund adequate staffing and provide hiring flexibility.
Implementation
Investing in specialized legal, technical, and project management talent is what translates ambitious statutes into timely, workable guidance.
Compliance & Uptake
Adequate staffing enables proactive outreach, responsive customer service, and tailored resources that expand participation.
INSIGHT 5
Operational infrastructure enables uptake
Modern IT systems, operational tools, and administrative capacity are foundational to implementing tax credits at scale.
Design
Legislation that relies on registration, transfer mechanisms, verification systems, or modelling tools should fund and plan for that infrastructure at the outset.
Implementation
Building portals, registration systems, and processing tools is essential to operationalizing tax credits at speed.
Compliance & Uptake
Reliable digital systems, clear verification processes, and accessible platforms increase confidence, reduce friction, and expand participation.
INSIGHT 6
Reaching all Americans takes more than guidance
Broad participation depends on sustained engagement, clear communication, and accessible support systems.
Design
Structuring credits for consumers, such as enabling point-of-sale delivery, expands who can benefit.
Implementation
Clear rules, practical tools, and coordinated messaging make it possible for everyday participants, not just well-advised firms, to act with confidence.
Compliance & Uptake
Working through trusted local partners helps translate federal policy into real opportunities across communities.
Nearly $500 billion in private clean energy and manufacturing investment in the first two years
Clean investment doubled as a share of total private investment, with more than $350 billion in new or expanded clean energy and transportation manufacturing facility investments announced.
Over 150,000 clean vehicles supported, saving consumers more than $1 billion at the point of sale
Impact
Early indicators suggest the IRA’s clean energy tax credits reshaped investment decisions and accelerated deployment.
What Comes Next
The IRA experience offers five key recommendations for future clean energy policy:
Write the next era of clean energy incentives: simple, clear, and designed for efficient implementation.
Reimagine and build the federal workforce for the challenges ahead.
Transform how government works to deliver at speed and scale.
Build civil society infrastructure that transforms policy into participation.
Write the next era of clean energy incentives: simple, clear, and designed for efficient implementation.
Reimagine and build the federal workforce for the challenges ahead.
Transform how government works to deliver at speed and scale.
Build civil society infrastructure that transforms policy into participation.
Deploy the full energy and economic policy toolkit, beyond tax credits alone.
Deploy the full energy and economic policy toolkit, beyond tax credits alone.
REFLECTIONS FROM INTERVIEWS:
"The speed at which Treasury and IRS implemented these credits exceeded all expectations. This could have taken half a decade. Within two years, we had the core guidance projects nearing completion. We created an unbound incentive to produce clean energy at scale."
Former Senior Treasury Official
"We successfully implemented an entire law in two and a half years. This was not a foregone conclusion in August 2022 that this was possible. We saw major investment decisions, impacts on the ground, and rapid market behavior changes."
Former National Economic Council Senior Official
REPORT AUTHORS
Emily Barkdoll
Emily Barkdoll served as Acting Deputy Director, Technology Policy and Strategic and Policy Design Analyst for the Office of Policy at the U.S. Department of Energy.
Ted Lee served as Deputy Assistant Secretary for Tax Policy and Delivery at the U.S. Department of the Treasury and as Senior Advisor on the White House American Rescue Plan Implementation Team.
Ted Lee
Dorothy Lutz
Dorothy Lutz served as Senior Policy Advisor at the White House Office of Domestic Climate Policy and Policy Analyst at the Office of Policy at the U.S. Department of Energy.