# The UN's Money: Its Pension Fund, Its Staff's Taxes, and the Gift of Its Land

The United Nations runs a ninety-billion-dollar pension fund, operates a private tax system that keeps its payroll inside its own walls, and sits on Manhattan land a single family bought and gave it.

Author: J.A. Watte
Published: July 6, 2026
Source: https://jwatte.com/blog/united-nations-money-and-access/

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The United Nations does not print money or collect taxes the way a government does. Yet it manages a retirement fund holding more than ninety billion dollars ([UNJSPF](https://www.unjspf.org/newsroom/united-nations-joint-staff-pension-fund-financial-statements-for-2024/)), it runs a private tax system that keeps its payroll inside its own walls, and it sits on some of the most valuable ground in Manhattan, handed to it outright by one man. None of this is hidden. It is simply spread across financial statements, tax FAQs, treaty texts, and old photographs that almost nobody reads side by side.

## The pension fund that would rank among the world's largest

The United Nations Joint Staff Pension Fund reported net assets available for benefits of US$95.42 billion as of 31 December 2024, an 8.1 percent rise over the previous year, with the fair value of its investments at US$94.36 billion, up 7.7 percent ([UNJSPF](https://www.unjspf.org/newsroom/united-nations-joint-staff-pension-fund-financial-statements-for-2024/)). That is an institutional fortune, managed for people scattered across the planet.

It is also not a single-employer plan. At year-end 2024 the fund served 150,704 participant accounts and paid 89,308 periodic benefits across 190 countries ([UNJSPF](https://www.unjspf.org/newsroom/united-nations-joint-staff-pension-fund-financial-statements-for-2024/)). It covers 25 member organizations and is administered by the UN Joint Staff Pension Board, which currently has 33 members representing those organizations ([UNJSPF](https://www.unjspf.org/about-us/about-the-fund/)). One pool, many employers, one common set of rules.

The cash flows the way a mature pension does. In 2024 the fund collected US$3.66 billion in contributions and distributed US$3.84 billion in benefits ([UNJSPF](https://www.unjspf.org/newsroom/united-nations-joint-staff-pension-fund-financial-statements-for-2024/)). Paying out slightly more than it takes in is normal for a plan with many retirees and a long history. What keeps it solvent over decades is investment return. The fund's preliminary long-term real rate of return, measured over 15 years and longer, was 4.09 percent as at 31 December 2024, above its own stated objective of 3.5 percent a year ([UNJSPF](https://www.unjspf.org/newsroom/update-on-the-state-of-unjspf-in-2024/)). The word "real" is doing quiet work there. It means the return after inflation, which is the only figure that matters for an institution promising to pay pensions thirty or forty years out.

## The tax that never leaves the building

Every UN staff member, regardless of nationality, has a "staff assessment" deducted from gross salary. It behaves like an internal income tax: it lowers take-home pay the way a national tax would, except the money stays inside the UN system rather than flowing to any treasury. The UN's own guidance is blunt about the rules. The staff assessment "cannot be reimbursed to staff members under any circumstances, and it cannot be claimed as a deduction on United States income tax returns" ([UN Income Tax Unit](https://tax.un.org/en/content/frequently-asked-questions)).

Most staff pay no separate national income tax on their UN earnings. The United States is the large exception. US citizens and permanent residents who signed the required waiver are subject to US income tax on their UN earnings ([UN Income Tax Unit](https://tax.un.org/en/content/frequently-asked-questions)). To keep those staff from carrying a burden their colleagues do not, the UN reimburses them from a pool called the Tax Equalization Fund, with the stated aim of placing them "in the position in which they would have been if their official emoluments were not taxed" ([UN Income Tax Unit](https://tax.un.org/en/content/frequently-asked-questions)).

The plumbing behind that is worth following, because it is where the burden actually lands. Staff assessment deductions from everyone's pay are credited to the Tax Equalization Fund. Member states that do not tax UN earnings then receive a credit against their assessed contributions from that same fund ([UN Income Tax Unit](https://tax.un.org/en/content/frequently-asked-questions)). The money used to make American staff whole therefore comes, in effect, from a pool the entire membership feeds. An American on the UN payroll in New York ends up neither ahead nor behind, and the cost of getting them there is quietly spread across the organization.

There is a smaller wrinkle on the self-employment side. Because of how US law treats these salaries, American staff owe Social Security and Medicare tax as if they were self-employed. The UN "will normally reimburse one-half of the self-employment tax due on United Nations taxable earnings, as calculated on IRS Schedule SE," leaving the staff member to pay the other half ([UN Income Tax Unit](https://tax.un.org/en/content/frequently-asked-questions)). That mirrors the split an ordinary US employer and employee already share, just routed through a reimbursement instead of a payroll line.

## How a global salary gets set

Where does the pay scale itself come from? For Professional and higher-category staff, the UN uses one worldwide salary scale set under what it calls the Noblemaire principle: pay should be good enough to recruit from the country with the highest-paid national civil service. Since the organization's earliest days, that comparator has been the United States federal civil service ([ICSC](https://icsc.un.org/Resources/SAD/Booklets/sabeng.pdf)). One country's government payroll, in other words, quietly anchors the salaries of international civil servants everywhere in the world.

Setting and policing that scale is the job of the International Civil Service Commission, an expert body established by General Assembly resolution 3357 (XXIX) of 18 December 1974. It consists of 15 members appointed by the General Assembly ([UNSCEB](https://unsceb.org/international-civil-service-commission)). The commission is meant to sit apart from any single agency, which is the whole point. It maintains one common system of pay and benefits across the many UN organizations instead of letting each negotiate its own, and it is the reason the pension fund can cover 25 employers under a single rule book.

## Immunity, and who can take it away

UN officials are often described as untouchable. The reality is narrower and more deliberate. The organization's immunities flow from Article 105 of the UN Charter and from the Convention on the Privileges and Immunities of the United Nations, which the General Assembly adopted on 13 February 1946 ([ICJ](https://www.icj-cij.org/other-texts/convention-on-the-privileges)). What officials receive is functional immunity: protection for acts performed in their official capacity, granted for the organization's benefit rather than for the individual's comfort.

The distinction matters most at the moment immunity becomes inconvenient. Under Section 20 of the Convention, the Secretary-General "shall have the right and the duty to waive the immunity of any official in any case where, in his opinion, the immunity would impede the course of justice and can be waived without prejudice to the interests of the United Nations" ([ICJ](https://www.icj-cij.org/other-texts/convention-on-the-privileges)). Immunity here is not a personal shield an official owns and carries. It belongs to the institution, and the institution can set it aside. For the Secretary-General's own immunity, the power to waive rests one level higher, with the Security Council ([ICJ](https://www.icj-cij.org/other-texts/convention-on-the-privileges)).

## The narrow door in

Getting hired into that system at the entry level runs, for many, through the Young Professionals Programme. The eligibility rules are strict and unforgiving. A candidate must be 32 years old or younger in the year of the examination, hold at least a first-level university degree (a bachelor's or a three-year degree) relevant to the exam's job family, and hold the nationality of a participating member state, meaning one the UN has flagged as unrepresented or under-represented for that year ([UN YPP brochure](https://www.un.org/sites/un2.un.org/files/2025_ypp_brochure_-_english.pdf)). The list of participating countries changes every cycle, so eligibility itself is a moving target rather than a fixed door.

Language is a gate too. Applicants must be fully fluent in English or French, the Secretariat's two working languages, and knowledge of another official UN language counts as an advantage ([UN YPP brochure](https://www.un.org/sites/un2.un.org/files/2025_ypp_brochure_-_english.pdf)). The examination itself has two parts: a General Paper taken by everyone sitting that day, and a Specialized Paper tied to the chosen job family. When more than 40 eligible applicants come from the same country and exam area, the UN screens and ranks them further, on education, language, and experience, before the exam even begins ([UN Academic Impact](https://www.un.org/en/academic-impact/work4un-young-professionals-programme)).

How steep are the odds once you clear all that? The UN publishes the rules but not an acceptance rate. Figures that circulate on career-advice sites, on the order of tens of thousands of applicants competing for roughly a hundred roster spots, are not confirmed by any official UN statistic, so they are best treated as unverified. What the published rules make clear on their own is harsh enough: a single gap ends the application before the exam. An age one year over the limit, a degree in the wrong field, the wrong passport in the wrong year, and the file closes.

## The gift of the land

The UN's home in New York was a private gift. The 17 to 18 acre site (about 6.9 to 7.3 hectares) in the Turtle Bay neighborhood, a six-block stretch along the East River, did not come from the US government or from the city's treasury ([Wikipedia](https://en.wikipedia.org/wiki/United_Nations_Headquarters)). It came from John D. Rockefeller Jr., who put up $8,500,000 to buy the land and hand it to the organization ([UN Photo](https://media.un.org/photo/en/asset/oun7/oun7771368)).

The ground had a stranger recent history. The developer William Zeckendorf had assembled the parcels for a futuristic complex he called "X City," planned around twin 57-story towers holding offices and a hotel. When the financing never came together, Nelson Rockefeller arranged an option on Zeckendorf's Turtle Bay land, funded by his father, John D. Rockefeller Jr. That $8.5 million purchase became the UN site, donated in December 1946 ([Wikipedia](https://en.wikipedia.org/wiki/United_Nations_Headquarters)).

What makes the gift more than a real-estate footnote is what it beat. In late 1946 the young organization was seriously weighing other cities, and Philadelphia was the leading rival. Philadelphia had offered to donate land in prime locations, including a Center City site that would have run the headquarters along a mall from Independence Hall to Penn's Landing, while San Francisco, Boston, and several New York suburbs were all in the running as well ([Wikipedia: Headquarters of the United Nations](https://en.wikipedia.org/wiki/Headquarters_of_the_United_Nations)). What tipped the decision to Manhattan was the land itself. Rather than build his X City, Zeckendorf sold the option on his Turtle Bay parcels, Nelson Rockefeller assembled the deal, and his father's $8.5 million gift put a finished, donated site on the table that no rival city could match on short notice ([Wikipedia: Headquarters of the United Nations](https://en.wikipedia.org/wiki/Headquarters_of_the_United_Nations)). The developer's abandoned dream city is the reason the United Nations sits in New York rather than Philadelphia.

The ceremony came a few months later. On 25 March 1947, a check for $8,500,000 was presented to Secretary-General Trygve Lie, with the city's parks commissioner Robert Moses and Mayor William O'Dwyer on hand ([UN Photo](https://media.un.org/photo/en/asset/oun7/oun7771368)). One detail is worth getting right: the gift was Rockefeller Jr.'s, but the check was physically handed over by his son, John D. Rockefeller III, on his father's behalf.

The gift covered the land, not everything that had to happen to it. New York City spent about $5 million clearing and preparing the ground, a sum that works out to roughly $52 million in 2024 dollars, on top of Rockefeller's purchase ([Wikipedia](https://en.wikipedia.org/wiki/United_Nations_Headquarters)). The result is one of the few patches of Manhattan that answers to no US zoning board and pays no city property tax.

## The bottom line

Three threads run through all of this. The UN manages a retirement fortune large enough to rank among the world's bigger pension funds. It runs a self-contained tax system that keeps its payroll intact and, for its American staff, spreads the cost of US taxes across every member state through a single pooled account. And it stands on land it never bought, given by one family whose name recurs throughout this series. None of it is secret, and almost none of it is against any rule. It is simply the ordinary machinery of an institution built, on purpose, to operate a little outside the systems that bind the countries sitting inside it.

## Related reading

- [The Land Assembler](/blog/william-zeckendorf-rise-and-fall/): the developer who put together the very parcels Rockefeller later bought for the UN.
- [The Family Behind the Gift](/blog/rockefeller-dynasty/): the Rockefellers, whose money bought the Turtle Bay site.
- [Pools of Institutional Money](/blog/trust-funds-vs-sovereign-wealth/): how a giant institutional retirement pool is structured and governed.
- [Another Public Retirement System](/blog/thrift-savings-plan/): a large, rule-bound government plan for comparison.
- [The Working Ledgers](/blog/the-working-ledgers/): the market and the money underneath the institutions.

## Fact-check notes and sources

- **The pension fund** (net assets, investments, 150,704 accounts, 89,308 periodic benefits, 190 countries, contributions and benefits, 25 member organizations, 33-member Board, and the preliminary 4.09 percent long-term real return against a 3.5 percent objective): [UNJSPF financial statements for 2024](https://www.unjspf.org/newsroom/united-nations-joint-staff-pension-fund-financial-statements-for-2024/), [UNJSPF About the Fund](https://www.unjspf.org/about-us/about-the-fund/), and [UNJSPF state-of-the-fund update](https://www.unjspf.org/newsroom/update-on-the-state-of-unjspf-in-2024/).
- **The internal tax system** (staff assessment deducted regardless of nationality and never reimbursed, the Tax Equalization Fund, reimbursement of US-taxpaying staff, member-state credits, and the one-half self-employment tax reimbursement on IRS Schedule SE): [UN Income Tax Unit FAQ](https://tax.un.org/en/content/frequently-asked-questions).
- **The salary rule and the ICSC** (the Noblemaire principle with the US federal civil service as comparator, the commission created by General Assembly resolution 3357 (XXIX) of 18 December 1974, and its 15 members): [ICSC common-system booklet](https://icsc.un.org/Resources/SAD/Booklets/sabeng.pdf) and [UNSCEB on the ICSC](https://unsceb.org/international-civil-service-commission).
- **Immunities and their waiver** (Article 105 of the Charter, the Convention adopted 13 February 1946, functional immunity, and the Section 20 waiver power of the Secretary-General and the Security Council): [ICJ text of the Convention](https://www.icj-cij.org/other-texts/convention-on-the-privileges).
- **The Young Professionals Programme** (the age-32 limit, the degree and nationality rules, the English-or-French fluency requirement, the General and Specialized papers, and the more-than-40-applicant screening rule): [UN YPP brochure](https://www.un.org/sites/un2.un.org/files/2025_ypp_brochure_-_english.pdf) and [UN Academic Impact](https://www.un.org/en/academic-impact/work4un-young-professionals-programme). Applicant-volume and acceptance-rate figures circulate only on secondary career sites and are not confirmed by any official UN statistic; they are flagged as unverified above.
- **The land** (the $8,500,000 Rockefeller gift, the 25 March 1947 presentation to Trygve Lie with Robert Moses and Mayor O'Dwyer, the transfer through John D. Rockefeller III, Zeckendorf's "X City" of twin 57-story towers, the 17 to 18 acre six-block Turtle Bay site, and the city's roughly $5 million clearing cost): [UN Photo caption](https://media.un.org/photo/en/asset/oun7/oun7771368) and [Wikipedia: United Nations Headquarters](https://en.wikipedia.org/wiki/United_Nations_Headquarters). The 2024-dollar conversion and the acreage rest on a tertiary source and are approximate. **The site rivalry** (Philadelphia as the leading competitor with its Fairmount Park and Center City offers, San Francisco and Boston also in contention, and the Rockefeller gift of Zeckendorf's land tipping the choice to Manhattan): [Wikipedia: Headquarters of the United Nations](https://en.wikipedia.org/wiki/Headquarters_of_the_United_Nations).

*This post is informational and educational, not tax, legal, or investment advice. Figures are reproduced from the cited financial statements, UN tax guidance, treaty texts, and archival records, with any contested or unverified figures flagged as such. Individuals and organizations named here are discussed as a matter of public record under nominative fair use, with no affiliation or endorsement implied.*


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