Aumbur Kwaghter Sule Wants the Ledger to Carry the Proof

Aumbur Kwaghter Sule can tell you the exact moment a grant becomes a problem. It is not the moment the money runs out. It is the moment an auditor asks, three years later, what one line on a bank statement paid for, and the answer has to be reconstructed instead of retrieved.

Reconstruction is slow, expensive and sometimes impossible, and the cost of it lands on a program rather than on a bank. Sule has spent five years building the machinery that makes it unnecessary, first inside a bank and then in a run of journal articles that have now been cited 1,871 times.

She heads the Development Banking Desk at Access Bank Plc, where the clients are embassies, multilateral agencies working in health and food security, international foundations and nongovernmental organizations running programs in Nigeria. What those clients have in common is that none of them owns the money in the account in any ordinary sense.

“Almost everything a bank does assumes the money in the account belongs to the person whose name is on it, and that they can spend it as they choose,” Sule said. “Take that away and the design changes. The balance is not a resource. It is a set of obligations that happens to be denominated in naira and dollars. Once you accept that, you stop building the relationship around lending and start building it around traceability.”

She has led that desk since June 2023 and has worked in Nigerian banking since 2008, across five institutions and through public sector, retail and marketing roles. She read business management at Benue State University in Makurdi, took an MBA from University of the People, the American online institution, completed a HarvardX certificate program in 2020 and a United Nations Institute for Training and Research immersion program in 2024. The argument she is known for, though, is not confined to a desk. She has been making it in journals as well, and the eighteen months since the first suspensions of American assistance in January 2025 have tested it harder than any of them.

The test arrived with the dismantling of the American aid architecture. USAID stopped implementing foreign assistance on July 1, 2025, and the State Department took over the programs that survived. Nigeria was among the most exposed countries. Analysis published by ODI put US health funding to Nigeria above $440 million in 2024, roughly 15 percent of the national health budget, and noted that the federal government added $200 million to its own health allocation within a month of the announcement. What has replaced the old model is a bilateral agreement of the kind at least nine African governments have now signed, which the Center for Global Development characterizes as combining reduced American funding with high co-financing expectations and a shift toward direct government-to-government assistance, at roughly half the annual level of 2024.

Sule is careful about which part of this she will discuss.

“I have no view worth publishing on another country’s budget decisions, and it would be presumptuous of me to offer one,” she said. “What I can describe is what it changed on my side of the ledger. When a single funder was carrying a program end to end, the reporting was demanding but it was singular. Co-financing splits one program across two or three sources with different fiscal years, different eligible-cost rules and different definitions of what counts as spent. Nobody removed a requirement. They multiplied the reconciliations.”

The transition, in her account, has been misread as a loosening. She argues the opposite.

“There is an assumption that when a donor steps back, the paperwork goes with it,” she said. “It does not. Money routed government to government arrives inside a public financial management system that has its own audit chain, and the counterpart contribution has to be evidenced too. The number of parties entitled to a full answer went up, not down. If you had a weak evidence layer under the old model, the new one will find it.”

The stakes of getting that wrong are not administrative. A study published this year in Health Policy and Planning modeled the withdrawal across six West and Central African countries and projected the largest absolute increase in maternal deaths in Nigeria, on the assumption that no substitute financing arrives in time. Sule frames her own work as sitting a long way downstream of that finding, in the plumbing that decides whether substitute financing can move at all.

The American compliance chain, meanwhile, has not relaxed. Federal awards are audited to the line item, and an organization expending $1 million or more in a fiscal year sits for a single audit. Foundation grants carry their own covenants and their own auditors. The chain runs downhill until it arrives at a ledger entry, and Sule’s position is that the entry has to be built at the moment of payment to survive inspection years later.

“The program team reports to a funder abroad and to a domestic regulator, and neither will accept the other’s version of the answer,” she said. “Our job is to produce one record that satisfies both, without asking them to rebuild it by hand in a spreadsheet at the end of the quarter. If they are doing that, we have not done the work. We have just moved it.”

Her research pushes the same argument past what one desk can reach. In 2024 she was first and corresponding author on a study of green finance in banking, published in the Gulf Journal of Advance Business Research, which works through green bonds, sustainability-linked loans and renewable energy financing as instruments, then turns to the harder question of how a bank makes them auditable. Artificial intelligence and distributed ledger tools, she and her co-authors argue, matter less as innovation than as a way of making claims verifiable at scale. She has returned to the theme across co-authored papers on artificial intelligence in credit scoring and debt recovery for microfinance institutions and small enterprises, on digital transformation in financial services, and on data analytics used to find inefficiencies inside banks.

She writes as an independent researcher based in Abuja rather than under her employer’s name, which she treats as a point of principle. “A desk gives you a sample of one institution,” she said. “Publishing forces the method out of the institution. If the argument only holds inside my own bank, it was never a method. It was a habit.” Alongside the citation count, her Google Scholar profile showed an h-index of 29 and an i10-index of 42 at the end of July 2026.

Sule also spends a substantial share of her time assessing other people’s work. She has served as a peer reviewer and on editorial boards across four journals since 2021, and has been named reviewer of the year or editor of the year on nine occasions between 2021 and 2025. In March 2025 she was elected a fellow of the Institute of Management Consultants of Nigeria, its highest grade, which is conferred on nomination by existing fellows rather than on application. She had been admitted a fellow of the Institute of Corporate Administration of Nigeria in October 2024, and holds a further fellowship in loan and risk management.

She is direct about what those elections did and did not tell her.

“You cannot apply. Someone who has watched your work has to propose you, others have to second it, and a committee that has never met you reads the file,” she said. “So it is not a prize for being liked. What it settled for me was narrower than recognition. The people assessing me were consultants and administrators, not development bankers, and they were checking whether the reasoning held up outside the setting that produced it. That is the same test I set myself when I publish. Passing it twice, with two different sets of assessors, is the closest I have come to knowing the method is not just local habit.”

Asked what changes next in her field, Sule returns to proof.

“Funders are moving toward disbursement conditions verified from data rather than attested in a narrative report, and the co-financed model accelerates that, because two contributors both want assurance and neither wants to take the other’s word,” she said. “The ledger has to carry the proof at the moment the payment clears, not six months later when someone writes it up. Any bank that cannot produce that at transaction level ends up as a place the money passes through, and nothing more. That is the piece I have been trying to solve, at the desk and on paper.”

It is an unglamorous ambition, and she seems content with that. Development banking, as she describes it, is documentation, reconciliation and a reporting deadline that does not move. The results everyone wants to celebrate sit downstream of whether the paperwork holds.