Solomon Islands CPI inflation (headline, 3-month moving average, year-on-year)
Solomon Islands CPI inflation (headline, 3-month moving average, year-on-year) is 3.9 percent, in force since 1 May 2026. It was 4.2 percent before that. Last checked against the official source on 23 Jul 2026.
Solomon Islands headline consumer price inflation as officially headlined — the annual rate calculated on a 3-MONTHS MOVING AVERAGE basis, National CPI (2017=100), weighted average of the four CPI towns (Honiara, Auki, Gizo, Noro), compiled by the Solomon Islands National Statistics Office (SINSO), Ministry of Finance and Treasury.
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| Current value | 3.9 percent (YoY, 3-month moving average) |
|---|---|
| In force from | 2026-05-01 |
| Official source | Central Bank of Solomon Islands — Monthly Economic Bulletin, Volume 17 Issue No.6, June 2026, §'Headline Inflation (Year-on-Year (YoY) -3mma)' and the Key Economic Indicators table: 'Headline inflation (YoY) eased to 3.9% in May 2026, down from 4.2% in April'; NCPI index 134.2 in May from 133.3 in April; source series compiled by SINSO |
| Last verified | 2026-07-23 |
| Verification | primary — No verification limitation recorded — read from the official source cited. |
| Provenance | source fingerprint |
What this value means
PUBLICATION LAG IS REAL AND MUST NOT BE HIDDEN. As of 23 July 2026 the newest month for which a headline inflation rate exists anywhere official is MAY 2026 — a lag of roughly two and a half months. The two official publishers are out of step with each other: (a) SINSO (statistics.gov.sb), the compiler, has published only up to MARCH 2026 — Statistical Bulletin 06/2026, 'National Consumer Price Index (March 2026)', released 06/05/2026 and posted to the site 14 May 2026; SINSO's last narrative news release was for December 2025, posted 4 February 2026, so its own 'All releases' feed looks four months stale even though a March data file exists behind the Consumer Price Index category page. (b) CBSI republishes the SINSO series monthly in its Monthly Economic Bulletin, which is more current — the June 2026 MEB (published July 2026) carries CPI through May 2026, and CBSI's homepage indicator tile showed 4.2% for April 2026 as at 23 July 2026, i.e. the CBSI DASHBOARD ITSELF LAGS ITS OWN BULLETIN BY A MONTH. The value served here (3.9%, May 2026) is the most recent official figure, taken from CBSI's bulletin, which is an official primary publisher republishing the official compiler. WHICH MEASURE: Solomon Islands headlines a 3-MONTH MOVING AVERAGE annual rate, not a simple through-the-year rate, and the two differ materially — for March 2026 the 3mma annual rate was +4.2% while the plain through-the-year change was +3.1%. Anyone comparing Solomon Islands to a country that headlines simple YoY must know this. Also published: monthly (MoM) change and underlying/core measures. Composition for May 2026: domestic ('other items') inflation 4.7% (down from 5.9%), imported inflation 1.9% (up from 0.2%), core inflation 0.9% (down from 1.4%) — i.e. the 2026 inflation episode is domestically and supply driven, with core well contained; CBSI's Governor described recent inflation as 'more supply driven than demand driven'. Index base is 2017=100; NCPI level 134.2 in May 2026. CBSI's target ceiling is inflation below 5%; its March 2026 MPS projected headline easing to ~3.5% by June 2026 and ~3.4% at end-2026, which the May outturn is tracking. ACCESS NOTES: SINSO CPI bulletins are text-extractable PDFs behind opaque download URLs of the form statistics.gov.sb/download/13/consumer-price-index/<id>/<slug> — the ids change every release, so a watcher must scrape the Consumer Price Index category listing rather than guess a URL. The CBSI MEB filename pattern is unstable (older issues at /sites/default/files/reports/MEB-<Month>-<Year>.pdf, newer at /sites/default/files/<yyyy-mm>/MEB-<Month>%20<Year>_N.pdf with an arbitrary trailing index), and note the February 2026 issue is misspelt 'MEB-Feburary-2026.pdf'. Next expected: June 2026 CPI, via the July 2026 MEB (early-to-mid August 2026) and a SINSO bulletin at an unpredictable later date.
Earlier values
| From | Value | Source |
|---|---|---|
| 2026-04-01 | 4.2 | CBSI — Monthly Economic Bulletin, June 2026, Key Economic… |
| 2026-03-01 | 4.2 | SINSO — Statistical Bulletin 06/2026, National Consumer… |
| 2026-02-01 | 2.6 | CBSI — Monthly Economic Bulletin, June 2026, Key Economic… |
| 2026-01-01 | 0.6 | CBSI — Monthly Economic Bulletin, June 2026, Key Economic… |
| 2025-12-01 | 0.4 | SINSO — 'National Consumer Price Index declines by 0.4… |
Get it programmatically
curl https://ausref.dev/v1/sb/cpi
# $0.005 per call — x402 on Base (USDC). No key, no signup.
# History: curl https://ausref.dev/v1/sb/cpi/history?from=2020-01-01
# Provenance: curl https://ausref.dev/provenance/sb/cpiOther Solomon Islands series: CBSI Policy Rate · Sales tax · VAT registration threshold · Minimum wage (statutory hourly rates) · Public holidays · Company income tax rate (resident) · Withholding tax rates · Court-rule interest on judgment debts · Personal income tax brackets (resident individuals) · Statutory social-insurance contributions
The same figure elsewhere: Tonga · Vanuatu · Australia · Fiji · New Zealand · all 8