In January, the Global Impact Investing Network’s 2026 trends commentary predicted that reductions in international aid would increase pressure to mobilise impact capital for development. It also anticipated closer scrutiny of value for money, greater interest in place-based investment and more deliberate use of Impact Measurement and Management (IMM).

The first half of 2026 has reinforced that forecast, but it has also exposed a risk: the assumption that private investment can step neatly into spaces vacated by development aid. Impact capital has an important role in Africa, but that role becomes clearer when investors distinguish between financing viable enterprises, building markets and paying for essential services that do not generate sufficient revenue to repay capital.

The aid reduction is larger than an investment opportunity

The Organisation for Economic Co-operation and Development reported in April that official development assistance fell by 23.1% in 2025, the largest annual contraction on record. Bilateral support to sub-Saharan Africa declined by 26.3%, as did aid for development programmes, projects and technical co-operation.

The OECD projected a further 5.8% decline in 2026, even before accounting for additional global disruption. These reductions affect grants, technical assistance, humanitarian programmes and the institutions that prepare markets and enterprises for investment.

Some of the lost funding supported businesses that can attract commercial or concessional capital. Other funding paid for public health, policy capacity and services for people with little ability to pay. The resulting gap contains investable enterprises, early-stage models requiring patient support and essential activities that will continue to depend on grants or public finance.

The economic context has become less forgiving

Between January and June, the wider environment also deteriorated. The World Bank’s June 2026 Global Economic Prospects forecast global growth of 2.5% for 2026, down from 2.9% in 2025, with forecasts downgraded for two-thirds of economies.

The Bank expected sub-Saharan African growth to ease to 4.0%, while higher energy, fertiliser and food prices placed pressure on businesses and households. Government debt across developing economies had risen from below 40% of gross domestic product in 2010 to more than 70%, leaving less fiscal room to absorb new shocks.

The International Monetary Fund’s April regional outlook described the aid shock as unprecedented in scale, speed and uncertainty. For investors, this combination means greater social need alongside weaker customers, tighter public budgets and more fragile enterprise cash flows. Models built around stable input costs, donor-funded buyers or government reimbursement now require closer examination.

Impact investment to complement aid

The GIIN was right to expect closer alignment between impact investing and international development. The harder question is what that alignment should look like, particularly where high social value does not translate into a commercial return.

Trying to replace grants with market-rate capital can push enterprises towards prices, customers or growth rates that weaken the original impact thesis. A more credible response assigns each form of capital to suitable work: grants for public goods, market infrastructure and early evidence; concessional capital for risks commercial investors cannot yet carry; and commercial capital for models with demonstrated demand and credible repayment paths.

This division is particularly important for smaller African enterprises. Many need working capital, technical assistance and stronger financial systems before they can use larger investment tickets well. Removing non-financial support because budgets are tight may improve a fund’s cost ratio while weakening both enterprise performance and impact.

A more deliberate role for impact capital

It remains to be seen whether impact investing can respond to development pressures without overclaiming what investment can achieve. The positive outlook is that the sector already has many of the required tools: blended structures, catalytic capital, local fund managers, patient investors and increasingly disciplined impact practice.

Aid reductions can encourage stronger partnerships between investors, foundations, development finance institutions and governments. They can also prompt a more honest segmentation of funding needs, directing repayable capital towards models that can sustain it while preserving grants for functions markets will not fund.

Impact investment cannot carry the development system alone, but it can become more useful by financing viable solutions, strengthening the systems around them and working alongside the remaining public and philanthropic capital with greater purpose. Find out more.

Sources

The 2025 aid figures were preliminary when published. This article does not test individual investment performance or estimate how much private impact capital could replace reduced aid.