Author’s note: This article reflects publicly available information as of April 14, 2025. Future-state funding estimates are highly subject to change pending further donor country announcements and iteration on existing budget proposals.
Recent announcements by global donors signal a rapidly evolving global development landscape. These changes could add up to a generational shift in the way development-related programs are funded and organized. Announced reductions in official development assistance (ODA) up to mid-April 2025 are equivalent to a decrease of $41 billion to $60 billion (15 to 22 percent) relative to 2023—which understates the magnitude of the change for some sectors because the focus of aid has shifted toward Ukraine and refugees in recent years. In addition, forthcoming public-expenditure announcements and fiscal pressures may result in substantial further decreases.1 This acute change occurs against the background of decreasing volumes of foreign aid in the years before the COVID-19 pandemic, and it will have the greatest impact on sectors and countries that are most reliant on ODA.
Global health programs in particular are highly exposed to reductions in foreign aid. When COVID-19 expenditures are excluded, McKinsey analysis suggests that ODA for health programs was reduced by 44 percent between 2022 and the forecasted future state (from $39 billion to $22 billion).2 As a result, some health programs are already experiencing disruptions, including interruptions of care delivery and delays in the procurement of essential supplies. As organizations adapt to this new and evolving aid paradigm, there is a need both to respond to the acute shock and—when looking to the future—to potentially undertake more-systemic changes, including working to find efficiencies, mobilizing new funding, prioritizing investments, and redesigning the global development system to use available resources to greater effect.
Despite considerable ongoing uncertainty, the global development sector urgently needs to understand its potential options and make decisions about the best path forward. This article aims to provide a common analytical fact base as a possible input into those decisions. The analysis presented here is a snapshot in time, and organizations should maintain a clear understanding of announcements and their implications as the situation evolves. The article concludes with four strategies for preserving and sustaining programmatic impacts in a resource-constrained environment. Leaders and organizations may wish to consider these strategies as they grapple with the substantial challenges ahead.
The potential impact of recent ODA announcements
To contribute to a common analytical fact base, we have undertaken in-depth research into the evolution of ODA in recent years and the possible effects of recent announcements on recipient countries and international organizations (see sidebar, “Our methodology”).
Global ODA has grown steadily in recent years
Since 2018, total ODA has increased by 6 percent year over year, reaching $275 billion in 2023 (Exhibit 1). As a share of gross national income (GNI) among major donors, ODA has grown by 5.42 percent annually over the same period, reaching 0.42 percent of GNI in 2023.3 However, this remains well below the United Nations’ target of 0.7 percent of GNI.4
While funding has grown in absolute terms, ODA has consistently accounted for approximately 2 percent of recipient governments’ general expenditures since 2000 on average,5 underscoring its role as a stable, supplementary funding source in most recipient countries. However, the scale of ODA relative to domestic expenditure does vary by both country and sector.
Recently announced ODA reductions are equivalent to a 15 to 22 percent decrease relative to 2023
In recent months, Belgium, France, the Netherlands, Sweden, Switzerland, the United Kingdom, and the United States have all announced upcoming reductions to their respective foreign aid budgets.6 These announcements are equivalent to an estimated $41 billion to $60 billion reduction in ODA. This reduction may grow if further preliminary proposals for ODA drawdowns (from the European Union, for example) are realized.7 For comparison, our analysis shows that the largest year-over-year decline to date—$56 billion in 2007—was primarily driven by the conclusion of temporary cross-sector debt relief programs, with less impact on core, multiyear development programs.8 Although the projected ODA reduction is equivalent to a return to 2020–21 levels, it is likely that there will be disproportionately greater reductions in aid to many lower- and moderate-income countries (LMICs) because donor governments’ spending trends and recent announcements reflect a strategic reallocation of ODA toward geopolitical priorities (for example, support to Ukraine) and domestic resourcing needs (for example, support for refugees).9
Many of the recent announcements have cited NATO’s defense spending guideline,10 which specifies that NATO member states should spend at least 2 percent of GDP on defense, as a rationale for reallocating funding away from ODA.11 Evolving policy positions in other G7 countries may result in further ODA reductions. It remains to be seen whether other NATO member states will follow suit, though provisional proposals in other major donor countries (for example, Germany12) have indicated that ODA reductions are on the table.
The effect of funding cuts will likely vary by sector
Today, ODA facilitates development across a wide range of program areas. For example, it helps fund acute emergency response and humanitarian assistance, long-term government institutional support, and forward-looking adaptation and innovation in response to emerging trends (such as the energy transition). As high-level budget reductions are translated into line-item implications, state agencies will face difficult trade-offs across and within sectors.
Granular foreign aid budget announcements are just starting to be released, and long-term implications at the sector level remain generally unclear, but our projections indicate that the difference between future-state ODA funding and 2023 funding levels could vary substantially by sector—from 2 to 37 percent of the baseline (Exhibit 2, parts 1 and 2). Preliminary reports from the US government, based on USAID contract terminations, show a higher level of funding reductions in sectors such as education and energy, and for administrative spend.
Sectors and subsectors with a high concentration of funding in few donor sources may be particularly vulnerable; for instance, just two donors make up more than 50 percent of ODA to relief coordination and emergency food assistance (subsectors within “emergency response”). Sectors with a high share of multilateral funding may also face substantial funding reductions depending on how ODA reductions are allocated across channels. For example, water, sanitation, and hygiene services; agriculture and food; and health all receive at least 30 percent of their allotted ODA multilaterally. Climate-related initiatives are likely to be significantly affected as well: The top 20 recipients of ODA tagged with climate-related objectives received on average 72 percent of ODA from NATO bilateral donors in 2023.13
ODA reductions will also heavily affect multilateral organizations
Multilateral organizations serve as a critical channel for funding from donor countries and may face financial challenges if ODA is broadly reduced. For example, NATO member states accounted for 52 percent of contributions to the nine largest UN agencies in 2023 (Exhibit 3). Some of these agencies have already started to pause programs and close offices in anticipation of income reductions.14 Anticipated second- and third-order effects—including responses by other donor countries, private funders, civil society partners, and recipient governments—add to the ongoing uncertainty. Multilateral recapitalization rounds in 2025–26 may provide early signals on the longer-term direction of travel for multilateral ODA.15
A deeper look at the implications of ODA reductions on global health
It is worthwhile to examine the potential implications of ODA cuts on global health in more detail given the level of exposure of global health programs to ODA funding and the severity of worst-case scenarios related to the removal or breakdown of the public goods funded by ODA.
Global health programs are highly exposed to reductions in ODA
An estimated 18 percent of development assistance to health (DAH) is at risk of withdrawal based on current donor announcements (Exhibit 4, parts 1 and 2). The impact of these funding withdrawals could be exacerbated by the concentration of funding sources in particular program areas. For example, the US government provides more than 35 percent of DAH for HIV, malaria, and family planning programs in recipient countries.16 Recent US government reports indicate significant cuts to these sectors, with funding for USAID and State Department–managed programs for neglected tropical diseases, vaccines for children, and maternal and child health reported to reach zero.17 Private donor contributions, while significant, account for a much lower share of total DAH at 21 percent.
The potential consequences of rapid ODA reductions are already becoming apparent. Global health programs are experiencing immediate disruptions, including delays in the procurement of essential supplies, interruptions to care delivery, closures of research and development projects, and loss of program management capacity.18
There is significant variation in countries’ vulnerability to changes to ODA
Country-level exposure to ODA reductions varies significantly according to each nation’s reliance on ODA for overall health expenditures (Exhibit 5). Thirty-two countries receive an amount of health-related ODA that is equivalent to more than 25 percent of total domestic health expenditure. These countries face higher fiscal vulnerability because of the magnitude of health ODA relative to domestic government and private or out-of-pocket health spend.
In these highly exposed countries, closing the funding gaps created by current donor announcements would require backfill equivalent to as much as 118 percent of domestic government health expenditure (Exhibit 6). Mobilizing resources of this magnitude would be especially challenging for countries in debt distress or at high risk of debt distress—which represent the majority of those shown in Exhibit 6.19 The countries that are the most dependent on ODA thus are also the worst positioned to respond to acute ODA reductions, exacerbating the likelihood of severe health impacts.
The ultimate effects of ODA reductions will vary depending on factors such as disease burden, the current funding mix, and the ability of domestic and international resources to respond.
Potential paths forward for the global development ecosystem
Against the backdrop of funding changes and the related uncertainty, leaders of countries and organizations may need to chart new paths to fulfill their missions and achieve their desired impact.
The first step for stakeholders in global development will be to gain a fuller understanding of the likely impact of ODA reductions in their respective contexts. Scenario modeling can help stakeholders project the programmatic and geographic impacts of these changes, informing strategic decision-making. One approach would be to analyze potential funding scenarios at the program area level, translating funding reductions into intervention volume reductions (such as medical treatments administered and health commodities delivered) based on the historical budgets and outputs of global health programs. Impacts on health (for example, disability-adjusted life years) could then be modeled by applying intervention-level efficacy estimates from scientific studies.
While there is a need for near-term rapid responses, longer-term strategic planning will also be vital as the ODA landscape continues to evolve. Stakeholders in global development may consider the following four strategic levers as they look to both build resilience in the face of uncertainty and plan for the new ODA paradigm that will take shape over the coming years.
1. Capture efficiencies in program design and delivery
Stakeholders can consider the following actions:
- conducting cleansheet or “zero-based”20 budgeting analyses to identify the minimum costs required to deliver the current program outcome
- optimizing procurement and supply chains to negotiate lower commodity prices and reduce waste
- integrating systems and leveraging common delivery platforms to minimize duplicate spending
- investing in digital transformation to reduce long-term costs and improve the quality and timeliness of data
2. Mobilize resources
Stakeholders can consider engaging funders—including ministries of finance and nontraditional donors, such as private sector actors—to secure additional resources. In a few cases, this could be a moment to consider models in which those local consumers who are able to do so pay for products and services as a way to spread donor resources further.
3. Reprioritize programs and investments
Stakeholders can consider assessing programmatic priorities to prioritize high-ROI initiatives and reallocate resources to areas of greatest need. They may also wish to focus on additionality by prioritizing initiatives that few other sources of financing or organizations are able or willing to support.
When determining which programs and investments to prioritize, countries and organizations may consider whether each item meets the following criteria:
- Major programmatic impact: initiatives that deliver large-scale, highly effective interventions with significant positive impact
- High urgency: programs with immediate impact on lifesaving services
- Support for vulnerable groups: efforts that protect or uniquely reach vulnerable populations, such as those described in the 2030 Agenda for Sustainable Development (for example, refugees or persons with disabilities)
- Enabling of core functionality: programs that enable the efficient delivery of multiple initiatives across disease areas and geographies
- Highly specialized: initiatives requiring specific expertise, infrastructure, or assets that are difficult to replicate
- Catalytic potential: programs that can mobilize additional resources or unlock broader systemic change
4. Restructure the global development ecosystem
Stakeholders can consider exploring partnerships or mergers among programs, departments, and international organizations to reduce any duplicative efforts and enhance operational efficiency. Stakeholders may also consider a more comprehensive system redesign using a zero-based approach to align development infrastructure with a refreshed set of clear goals. As part of this system redesign, stakeholders could consider sourcing solutions from across sectors, including from the private sector.
The anticipated reductions in ODA represent a pivotal moment for the global development ecosystem. Notwithstanding current uncertainty, there may be an opportunity for stakeholders to reinvent approaches to program delivery and build more-resilient systems. With strategic planning and partnership, countries and organizations can navigate the shifting ODA landscape to continue driving positive impact for the communities they serve.