The Solomon Islands dollar has been pegged to a basket of foreign currencies since October 1998. Sometime before November 2024, the Central Bank of Solomon Islands quietly changed what sits inside that basket, closing out a policy argument the International Monetary Fund had been making since at least 2016.
That’s a small, technical-sounding event on its face. It’s also the kind of currency-plumbing decision that determines whether a peg regime actually tracks the economy it represents, or drifts further from it every year the update gets deferred. Solomon Islands let that drift run for the better part of three decades before finally correcting it, and the record of how long that correction took is fully documented in the Central Bank of Solomon Islands’ own published materials and in a decade of International Monetary Fund Article IV consultations.
What was actually in the basket, and why it stopped making sense
The Central Bank of Solomon Islands’ own published methodology, hosted on the central bank’s statistics pages, lays out the currency’s full history. The Solomon Islands dollar was first pegged at par to the Australian dollar when it became legal tender in 1979, according to the central bank’s own account. Later that same year, the peg shifted to a composite of trade-weighted currencies, the central bank states.
The regime briefly moved to managed floating in 1996, allowing scheduled monthly depreciation, before the Central Bank of Solomon Islands reverted the arrangement to a fixed peg against a trade-weighted currency basket in October 1998, the same arrangement that has held, with the composition change this article investigates, through today.
For most of that period, the basket comprised four currencies: the US dollar, the British pound, the Japanese yen and the Australian dollar, the Central Bank of Solomon Islands states on its own exchange rate definitions page. The problem, which the central bank’s own published materials acknowledge directly and without prompting, is that Solomon Islands’ actual trading relationships moved on without the basket keeping pace.
The central bank states plainly that trade with the United States has been “becoming less and lesser each year,” while new trading partners were “gradually increasing their shares of trade” with the country without ever being reflected in the peg calculation. The Central Bank of Solomon Islands’ own stated policy response, published on its website, was to expand the basket to whatever number of currencies would cover at least 80% of the country’s total trade, and the central bank specifically named four additions it intended to make: the New Zealand dollar, the South Korean won, the Singapore dollar and the euro.
Notably absent from that self-described expansion plan, as published by the central bank itself, is the Chinese renminbi, despite China’s growing weight in Solomon Islands’ trade and its outsized geopolitical profile in the country following the 2022 Solomon Islands-China security agreement, an agreement widely documented at the time it was signed. That gap is exactly what the IMF flagged next, and flagged specifically.
The IMF’s specific ask, and how long it actually took
On March 23, 2016, IMF staff concluding an Article IV mission to Solomon Islands recommended the central bank consider including the renminbi in its currency basket, citing China’s importance as a trading partner directly, according to Central Banking’s reporting on the mission published at the time. Central Banking’s report from that mission states IMF staff more broadly encouraged the authorities to make the exchange rate regime “more flexible through a periodic review of the ‘appropriateness’ of the level of the peg.”
Central Banking’s own organizational summary of its Solomon Islands coverage separately confirms that Solomon Island authorities responded at the time by agreeing to “consider expanding” the basket, while rejecting a related IMF suggestion to use cash reserve ratio changes to mop up excess liquidity in the banking system.
That 2016 recommendation did not produce an immediate basket change, based on everything I could verify. It resurfaced formally in the IMF’s 2023 Article IV consultation. The IMF’s own concluding statement from that February 2023 mission states the exchange rate regime “remains appropriate, but a timely review of the currency basket is called for, given changes in trade patterns,” and the same IMF statement separately lists “review of the exchange rate basket” among the Fund’s stated near-term capacity-development priorities for the country.
The IMF’s Executive Board, in its own summary of that same 2023 consultation published in May 2023, repeats nearly identical language, stating the current regime “remains appropriate, but a timely review of the currency basket is called for, given changes in trade patterns.” That the Board’s language mirrors the staff mission’s almost word for word indicates this wasn’t an offhand comment from a visiting economist but an institutional recommendation the Fund’s leadership formally endorsed and recorded.
Something changed between that 2023 push and the following year’s review. The IMF’s own statement completing its November 2024 Article IV mission, led by IMF economist Masafumi Yabara during a visit to Honiara from November 11 to 22, states plainly: “Staff notes the recent update of the currency basket.”
The IMF’s Executive Board, in its formal conclusion of that same 2024 consultation published February 25, 2025, goes further, instructing that Solomon Islands authorities should “keep the exchange rate fully aligned with the value of the updated currency basket,” language that only makes coherent sense if the update the IMF referenced had, by that point, actually taken effect. Eight years after the IMF’s first specific, documented push for a basket review in 2016, and roughly a year after the Fund escalated that request into a formal Article IV recommendation in 2023, the Central Bank of Solomon Islands acted.
What I could not independently confirm, stated plainly rather than assumed
This is the point where a clean narrative gets appropriately more complicated, and where I want to be explicit about the limits of what I verified rather than filling the gap with an assumption. I could not locate a primary Central Bank of Solomon Islands document, press release, or annual report excerpt that confirms the exact final composition of the “updated currency basket” the IMF references in its November 2024 and February 2025 statements.
The Central Bank of Solomon Islands’ own website describes an intended expansion to include the New Zealand dollar, South Korean won, Singapore dollar and euro, a plan that predates the IMF’s 2016 renminbi suggestion by an unknown margin and does not mention China’s currency at all. Whether the actual 2024 update matched that older four-currency plan exactly, added the renminbi as the IMF specifically suggested back in 2016, combined elements of both, or did something else entirely, is not something I can confirm from the sources available to me.
The Central Bank of Solomon Islands published a full 2024 Annual Report, hosted on the central bank’s own website, but the version I was able to access returned only cover-level metadata rather than page-level content I could verify claims against. I am flagging this explicitly: anyone reporting the specific currencies now inside the Solomon Islands dollar basket should confirm directly against the Central Bank of Solomon Islands’ exchange rate methodology page or the full text of the 2024 Annual Report itself, rather than relying on the older, pre-update expansion plan the central bank describes on its general statistics pages, which this article has already flagged as potentially superseded.
Why the mechanics of a currency basket actually matter here
A basket peg is only as credible as its ability to track the economy issuing it. The IMF frames basket pegs, in its own 2026 working paper series covering Pacific currency arrangements, as a deliberate middle path for small open economies, more flexible than a hard single-currency peg, more stable than a free float, offering what the IMF’s own paper describes as insulation from volatility in any single cross-rate by spreading exposure across multiple trading partners. The same IMF paper names Solomon Islands explicitly, alongside Fiji, Samoa and Tonga, as a current practitioner of this exact regime type.
The design only works, the IMF’s own working paper implies through its methodology, if the weights assigned to each currency in the basket roughly track where a country’s actual trade happens. A basket still anchored to 1998-era trade patterns, heavy on the US dollar and British pound, light or absent on China, does not insulate an economy from the currency risk it actually faces day to day.
It insulates the economy from a version of that risk the country stopped experiencing years earlier. The Central Bank of Solomon Islands’ own acknowledgment, published on its own site, that US trade share had been declining “each year” while new trading partners went unrepresented, is in effect an admission that the basket had drifted out of alignment with the trade flows it was designed to model.
What was happening to the currency and the economy while this played out
The gap between the old basket and Solomon Islands’ actual trade exposure did not sit in a vacuum while the IMF waited eight years for a response. The IMF’s own May 2023 Article IV consultation assessed Solomon Islands’ external position as “substantially weaker than the level consistent with medium-term fundamentals and desirable policies,” a formal IMF judgment that the country’s currency arrangement was not tracking where it should have been sitting.
That assessment came during a period of genuine macroeconomic strain that the IMF documented in detail: the same 2023 mission projected a fiscal deficit widening to 6.3% of GDP that year, driven substantially by Pacific Games hosting costs and general election spending, with the IMF projecting public debt would jump to 22.8% of GDP from 7.9% of GDP pre-pandemic.
By the time of the IMF’s November 2024 Article IV mission, the picture had stabilized somewhat, with the IMF projecting growth of 2.5% and inflation moderating toward 3.4%, but the IMF’s own statement described government cash reserves as “significantly depleted,” posing what the IMF explicitly called “immediate liquidity risk.”
The IMF’s most recent Article IV consultation, concluded June 29, 2026, shows an economy that outperformed those earlier expectations, with the IMF crediting an estimated 3.5% growth rate in 2025 to strong gold production and agricultural output, and the current account swinging to what the IMF describes as a 5.6%-of-GDP surplus.
But the same July 2026 IMF statement flags a widening fiscal deficit, estimated at 3.9% of GDP for 2025 and projected by the IMF to reach 4.1% in 2026, alongside what the IMF calls “significant budget implementation risks arising from depleted cash reserves, revenue uncertainty, and limited investor capacity to absorb government bonds.”
That fiscal fragility, as the IMF itself has repeatedly documented across three consecutive years of Article IV statements, is exactly the backdrop against which an outdated currency basket becomes more than an academic concern. A central bank managing genuine budget stress, as the IMF’s own language shows Solomon Islands has been doing continuously since at least 2023, has less room to absorb the cost of a peg that is misaligned with actual trade flows, because currency mismatch and fiscal mismatch tend to compound each other rather than sit separately.
Getting the basket weights closer to reality, whenever the actual 2024 update took effect and whatever specifically it changed, removes one source of avoidable pressure from a balance sheet that, according to the IMF’s own July 2026 language, does not have much slack left to spare.
What the IMF is saying now, after the update
The IMF’s tone on Solomon Islands’ exchange rate regime has shifted in a specific and verifiable way since the basket update took effect. Where the IMF’s 2023 consultation called for a “timely review,” the IMF’s July 2026 Article IV conclusion instead recommends that CBSI’s “primary response” to current inflationary pressure, stemming from the Middle East conflict’s effect on fuel and food import prices, should be to “allow the exchange rate to move in line with the currency basket, as it is calibrated to limit exchange rate volatility and support price stability.”
The IMF explicitly advises against “ad-hoc exchange rate adjustments” in the same July 2026 statement, and states that “adherence to the fixed exchange rate regime is essential to preserve policy credibility and transparency and to support market development.”
That is a materially different posture from the IMF than repeatedly asking for a basket review, and the shift in the IMF’s own words is traceable across its consecutive Article IV publications. The Fund has moved from treating the basket as a mechanism in need of further correction to treating it, in its own July 2026 language, as the correct anchor to lean on.
Read against the multi-year record the IMF itself has published, that reads as the Fund’s own verdict that the 2024 update accomplished what it was intended to, closely enough that the IMF is no longer pushing for a further revision in its most recent review.
The pattern this fits inside
Solomon Islands is not unique in this particular failure mode, based on comparable research this dossier has conducted on Papua New Guinea’s currency arrangement. PNG spent years running a crawling-peg exchange rate that had drifted well above its market-clearing level before the Bank of Papua New Guinea finally moved to a genuinely crawl-like arrangement in January 2024, a shift the IMF credits, in its own June 2026 country report on PNG, with narrowing kina overvaluation from around 14% to 4.4% within roughly eighteen months.
Solomon Islands’ basket-composition drift is a different mechanism than PNG’s rate-level drift, but it follows the same underlying pattern: a currency arrangement that technically continues functioning while quietly diverging from the economic reality it is meant to represent, until enough pressure, institutional, fiscal, or both, eventually forces a correction.
What distinguishes Solomon Islands’ case, based on the documented timeline, is how long that correction took. PNG’s overvaluation problem built and got corrected within a period of a few years under acute foreign exchange shortage pressure that was impossible for the government to ignore, as this dossier’s earlier reporting on PNG’s FX backlog has documented in detail.
Solomon Islands’ basket, by contrast, was flagged as needing review by the IMF in 2016 and, according to the IMF’s own statements, did not get updated until sometime around 2024, a gap of roughly eight years during which the Central Bank of Solomon Islands had already publicly acknowledged, on its own website, that the composition no longer matched the country’s actual trading pattern. That is not a crisis-driven fix.
It is a slow-moving one, and the length of the delay raises a fair, evidence-based question about what it actually took to move this specific reform from an acknowledged problem, stated in the central bank’s own published materials, to a resolved one, given that the IMF’s own capacity-development priority list named this exact review in both 2016 and 2023 before Solomon Islands acted on it.
A currency basket that finally caught up, on a timeline worth remembering
Solomon Islands now has a currency basket that the IMF, in its own words from July 2026, is comfortable calling well-calibrated, after roughly eight years of IMF statements saying it was not. That is a genuine and documented improvement, and it lands at a moment when the country’s fiscal position, described by the IMF itself as facing widening deficits, depleted cash reserves, and limited capacity for domestic bond investors to absorb government debt, needs every structural advantage it can secure.
But the length of time this specific fix took, fully documented across a decade of the IMF’s own published Article IV statements and the Central Bank of Solomon Islands’ own acknowledgment of the underlying problem, is itself a data point about how Pacific central banks prioritize technical currency maintenance against more visible, more politically urgent demands on limited institutional capacity.
The basket got fixed. Based on the same central bank’s own published materials, it is worth asking what else on that list has been sitting since 2016, still waiting its turn.
