The UN operational rate of exchange: why the amount you receive in francs is not the market rate

You work for an international organization in Geneva, your contract speaks in dollars, your bills arrive in francs, and the amount credited each month never quite matches what your app shows at the same moment. This is neither a payroll error nor a hidden commission: it is a different rate, one that has a name, a legal basis, and was never meant to reflect the market. This guide explains what the United Nations operational rate of exchange is, where it touches your pay, your allowances, your expense claims and your future pension, and which decisions it leaves you.

1. What the operational rate is, and who sets it

It is the United Nations accounting rate between the United States dollar and other currencies. Its basis is not a treasury practice but a written rule: the Financial Regulations and Rules of the Organization, issued under symbol ST/SGB/2013/4, provide at rule 106.5 that the Secretary-General establishes the operational rates of exchange between the United States dollar and other currencies, and that those rates are used to record all transactions of the Organization.

An administrative rate, not a market rate

The consequence fits in one sentence, and it explains most of the surprises: the Organization keeps its accounts in dollars, and anything that is not in dollars must be brought back to that accounting currency by a single rate, known in advance and identical for everyone. Rule 106.5 further provides that receipts and payments in a currency other than the United States dollar are recorded on the basis of the operational rate of exchange prevailing on the transaction date, and that any difference between the amount actually obtained on exchange and the amount the operational rate would have given is accounted for as loss or gain on exchange.

The UN Treasury, which publishes these rates, is explicit about what they are not: they are "intended only for the internal record-keeping of the United Nations" and "are not to be used and quoted as historic or market rates by the general public, as the U.N. Operational Rates are not bank rates nor databases of the exchange rates". That warning is the key to this guide: no one at the UN claims that it is the rate at which a currency transaction would actually be traded in the market.

A dated rate, valid for a period

Each rate is published with an effective date and remains applicable until the next revision. On 15 September 2026, the operational rate for the Swiss franc stood at 0.815 franc to the dollar. The Treasury also offers a view of the rates "changed since the 1st of the month", which shows that revision is not necessarily a once-a-month event: a rate can be replaced mid-period when the gap with the market warrants it.

2. Where the rate actually touches your money

Many international civil servants believe the operational rate only concerns their organization's accounting. In reality it runs through almost every line that makes up remuneration in the United Nations common system.

Pay: expressed in dollars, partly received in francs

The booklet United Nations common system of salaries, allowances and benefits, published by the International Civil Service Commission, states the principle in its February 2025 edition: "although salaries are expressed in United States dollars, in most duty stations staff must accept part of their salary in local currency". The exact share, however, is no longer set by a common text: the uniform formula that imposed a standard split between local currency and a convertible currency was abolished on 1 April 1995, leaving each organization to define its own arrangements. Two people at the same grade, on the same floor of the Palais des Nations, may therefore receive a different split depending on whether they belong to the Secretariat or to a specialized agency.

For the General Service category the logic is reversed: scales are established in local currency, grade by grade and step by step, and it is pensionable remuneration that is fixed in dollars. The operational rate then works in the opposite direction.

3. Why the amount received does not match the rate shown elsewhere

Because you are comparing two different objects: a rate frozen for a period and a rate that moves continuously. The gap is not an anomaly to report to payroll, it is the mechanical consequence of an accounting rate.

What one centime is worth

The order of magnitude is easy to work out. The International Civil Service Commission booklet uses as an example a staff member at the P-4, step VI level, whose annual net base salary is 93,882 dollars, or about 7,823 dollars a month before post adjustment. Assuming that salary were converted into francs in full (the share actually paid in local currency depends, as seen above, on your organization):

• one centime of movement in the rate is worth 78 francs a month, close to 939 francs over the year;
• five centimes are worth 391 francs a month, close to 4,694 francs over the year;
• the exposure follows the share actually converted: every 10% of salary delivered in francs exposes about 7.80 francs a month to one centime of movement;
• and post adjustment, which is added to base salary, mechanically amplifies these amounts, since each multiplier point adds 1% of net base salary.

In other words, the rate is not a marginal question on an international civil servant's income: it runs to thousands of francs a year, and it is replayed every month. Our guide on how to calculate an exchange rate sets out the basic reasoning, and the one examining the myth of the best moment in the month shows why the date chosen to convert matters less than people think.

The transaction date, not the date of the expense

The second lag is a matter of timing. Because payments are recorded at the rate in force on the transaction date, an expense incurred in francs and reimbursed several weeks later may be converted at a different rate from the one that applied when you paid. On a mission worth several thousand francs, the difference shows. It also explains why the same expense claim, submitted on two different dates, is not reimbursed at exactly the same amount.

4. Post adjustment: the exchange rate is already in your pay

This is the point most often overlooked, and the most useful to understand: the common system already absorbs part of the currency risk, but not at the pace one imagines.

Two components, two clocks

The post adjustment index measures the cost of living at a duty station relative to the base city, New York. The International Civil Service Commission booklet states that it is updated "to reflect changes due to inflation (local consumer price index (CPI)) and exchange rate fluctuations (local currency vis-à-vis the U.S. dollar)". Those two components do not follow the same calendar at hard-currency duty stations, known as Group I, which include Geneva:

• for inflation, a change is only made after a full 5% movement of the post adjustment index or after twelve months, whichever comes first;
• for exchange rate movements, changes "are reflected monthly in the post adjustment classifications".

The multiplier mechanism is then arithmetic: one point equals 1% of net base salary, so that a multiplier of 10.0 produces a post adjustment payment equal to 10% of net base salary, and the multiplier is expressed with a single decimal.

5. Allowances in francs: a frozen rate

Dependency allowances are a perfect illustration of what an administrative rate is. At hard-currency duty stations in Group I, the booklet states that "the United States dollar amounts of the allowances are converted to local currency using the official United Nations exchange rate as at the month of promulgation". What is published from then on is an amount in francs, and it does not move until the next promulgation.

The comparison is instructive. Converted at the operational rate of 15 September 2026, namely 0.815, the 2,929 dollars would give about 2,387 francs — noticeably less than the 2,785 francs actually published for Switzerland. Running the calculation the other way gives the rate at which the amount was frozen: 2,785 divided by 2,929 is 0.9508, and the second line of the table confirms it, since 975 divided by 1,025 is 0.9512. That is the order of magnitude of the dollar against the franc at the time of promulgation, in January 2011 — and that amount in francs has not moved since.

A frozen rate is therefore not unfavourable by nature. Depending on which way the currency has moved since promulgation, it works for you or against you, and it is precisely because it is administrative that it does not correct itself: here, the amount in francs remains almost 400 francs above what today's conversion would give.

6. The pension: the rate that follows you for thirty-six months

The United Nations rate does not stop at the last payslip. The United Nations Joint Staff Pension Fund offers a two-track system, open to beneficiaries residing outside the United States who provide proof of residence — the Fund requires actual physical presence of at least six months a year in the declared country of residence, and suspends the arrangement in certain countries. It is of particular interest to retirees settled in a high cost-of-living country, Switzerland among them.

How the local track is calculated

The local currency track pension is obtained by converting the value of the dollar track "at an average exchange rate between the United States Dollar and the currency of your country of residence", that average being "computed over the 36 consecutive calendar months up to and including the month of your separation from service". Each quarter the Fund compares the two tracks and pays the higher amount, with a ceiling set at 110% of the local track value and a floor at 80% of the dollar track value. The dollar track is then indexed to the United States price index, the local track to that of the country of residence.

The practical consequence deserves to be considered early: the rate that determines part of your retirement is not the one applying on the day you leave, but an average of the three preceding years. It is a decision prepared years in advance, much like the steps described in our guide to leaving Switzerland, and it is completed, once the pension is paid abroad, by the annual formalities set out in the guide to the life certificate.

7. What you can actually decide

The operational rate is not negotiable: it is set by the Organization and applies to everyone. What remains in your hands are three levers, and they explain most of the differences observed from one person to the next.

The split of your remuneration

This is the first and the most structural. Receiving a larger share in francs means entrusting the conversion to your organization, at the operational rate of the period. Keeping it in dollars means retaining control over the timing and the terms of the conversion — and accepting that the market moves in the meantime. Neither option is good in the abstract: the answer depends on the currency you spend in.

The currency you actually live in

In Geneva, a third term complicates the question. Part of the staff of international organizations lives in neighbouring France, in the Pays de Gex or around Annemasse, and therefore pays rent and household bills in euros while earning dollars and francs. Three currencies for a single budget means one more conversion, and rarely the one people plan for. The same reasoning applies to short contracts and consultants, whose fees are often denominated in a currency that is neither that of their rent nor that of their contributions.

The timing and the channel of the conversion

The third lever concerns what you do with the share you receive in dollars. Depending on the commitment involved — a monthly rent, annual school fees, a tax instalment — it may make sense to fix a rate in advance rather than convert as you go: our guide on how to lock an exchange rate describes that mechanism and its limits.

8. Frequently asked questions