The world leaders that gathered at the United Nations last month speaking about trust, reform, and the future of cooperation. Down the hall, the organization’s finance office was working on a plainer question: whether the cash will arrive in time to meet payroll.

Any comptroller would recognize the pattern. The General Assembly adopted a 2026 regular budget of $3.45 billion, about 7 percent below the prior year, after Secretary-General António Guterres proposed cutting resources by 15 percent and staffing by nearly 19 percent. Some 2,900 positions were abolished on January 1. In July the Assembly approved a $5.1 billion peacekeeping budget, 10 percent lower than the year before. By the usual standard of government reform, that is substantial discipline.

Yet the cuts address only one side of the ledger. The larger problem sits in receivables.

Member states owe mandatory assessments, and many pay late or in part. The United States is the largest source of the gap. After a payment of $827 million last month, split between $725 million for the regular budget and $102 million for peacekeeping, Washington still owes roughly $4.2 billion, according to PassBlue , which cited UN officials.

By my arithmetic, about one dollar in six of what was overdue has now been paid. UN officials have said the United States accounts for around 95 percent of arrears on the regular budget. China, which owed $429 million in April, has since paid its regular budget dues in full, according to the Council on Foreign Relations .

Peacekeeping shows the same strain. The Council on Foreign Relations counts about $3.5 billion in unpaid peacekeeping assessments, with the United States owing more than $2.3 billion of it. Last October the secretary general asked missions to cut spending by 15 percent and send home a quarter of their uniformed personnel. Troops in the field feel a late payment long before delegates in New York do.

The consequences are concrete. Last autumn the Secretariat borrowed $250 million from its Working Capital Fund to cover September payroll, then $226.9 million from a special account, then $130 million from the closed tribunals. The UN’s budget chief told delegates the organization nearly ran out of cash in December.

An accounting rule makes matters worse. When payments arrive late, programs are delayed, and the resulting underspending generates credits that must be returned to every member state, including those in arrears. The Center on International Cooperation estimated those credits at nearly $300 million for 2026, close to 10 percent of the budget. The secretary general called the cycle a race to bankruptcy. The Assembly endorsed a new method for handling unspent funds in July, a step its own meeting summary described as steering the organization away from imminent financial collapse.

Critics in Washington have legitimate points. The American mission to the UN says the 2026 budget saves the United States $570 million in assessments and removes nearly 2,600 posts. Duplicated mandates and bureaucratic sprawl are evident, and a leaner institution is a reasonable goal. But you cannot judge the efficiency of an organization whose spending is dictated by whether the money showed up. Hiring freezes, deferred programs, and emergency borrowing are not reform. They are what insolvency looks like from the inside.

There is also a question of standing. The Charter is a treaty the United States helped write and the Senate ratified, and it makes assessed dues a binding obligation. A government that objects to particular spending has an explicit remedy: state the problem, itemize what it is withholding and why, and negotiate. Letting unexplained arrears accumulate weakens the very oversight Washington says it wants.

Practical fixes are feasible. The UN could publish a payment calendar showing what each member has paid against what it owes, updated quarterly, so that delinquency becomes visible before it becomes a crisis. Credits should not flow back to members who have not paid. The Assembly could also require the next secretary general, who takes office on January 1, to present a solvency plan before presenting a reform agenda, since the first determines whether the second can be carried out.

Guterres leaves office on December 31. His successor inherits a smaller staff, a thinner budget, and a balance sheet that depends on the goodwill of its largest debtor. Reform is worth pursuing, and it will only be resilient if the money the rules already require actually arrives.

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