Independent Pacific island nation and Commonwealth realm.
30% standard rate.
Progressive, confirmed via TaxAtlas 2026 brackets: 0% up to SBD 15,000, 11% from SBD 15,001-30,000, 23% from SBD 30,001-60,000, 35% from SBD 60,001-90,000, and 40% above SBD 90,000. Employment income is subject to PAYE withholding.
The Solomon Islands does not have a VAT or GST system. Instead, a goods tax is levied on imported goods and selected domestically manufactured goods at various rates, alongside separate import duties (four ad valorem rates of 20%, 15%, 10%, and 5% on most imported goods, with exemptions for government, diplomatic, and certain charitable/educational imports).
Per the Solomon Islands Inland Revenue Division's own guidance, an individual is resident for tax purposes if they reside, or intend to reside, in the Solomon Islands for longer than 6 months. A secondary source frames this as a 183-day-or-more test within any 12-month period, which is broadly consistent with the official 6-month framing but adds an intent element the official source emphasizes and the secondary source does not - use the official IRD framing (reside or intend to reside beyond 6 months) as authoritative. Companies incorporated in the Solomon Islands are residents. Residents are taxed on worldwide income; non-residents on Solomon Islands-source income only.
Confirmed via a direct read of the Solomon Islands Income Tax Act (Cap. 123, consolidated to 14 November 2012): there is no provision attributing the undistributed profits of a foreign-controlled subsidiary to a Solomon Islands resident shareholder. The Act instead relies on two narrower anti-abuse mechanisms aimed at protecting the domestic tax base rather than reaching into foreign subsidiaries. Section 21(2) recomputes the profits of a Solomon Islands resident doing business with a closely-connected non-resident on an arm's-length basis where the arrangement produces less than ordinary profit for the resident. Section 25 is a general anti-avoidance rule voiding any arrangement, direct or indirect, whose purpose or effect is tax avoidance, with the Commissioner empowered to reconstruct the taxpayer's income as if the arrangement had not been made. Neither functions as a CFC regime.
Confirmed via Section 20(3) of the Income Tax Act: interest paid on debt, including inter-company loans, is disallowed as a deduction to the extent the ratio of loan capital to paid-up equity exceeds the ratio that would apply to an arm's-length, competitive third-party transaction at the time the loan was made, as determined by the Commissioner. This is a facts-and-circumstances arm's-length test rather than a fixed statutory debt-to-equity safe-harbor ratio (there is no numeric ratio such as 2:1 or 3:1 specified in the Act itself), so the applicable limit is determined case by case by the Commissioner.
The Income Tax Act does not impose an individual-level FBAR/Form 8938-equivalent requiring a Solomon Islands resident to self-report their own foreign personal accounts to the Inland Revenue Division. Separately and independently of Solomon Islands law, US citizens and Green Card holders with Solomon Islands accounts remain obligated to file FinCEN Form 114 (FBAR) once aggregate foreign accounts exceed USD 10,000, and potentially Form 8938, regardless of the Solomon Islands' own domestic requirements.
The Solomon Islands has entered into a limited number of double taxation agreements, per available sources, per available sources; the ICAEW library confirms at least a UK-Solomon Islands double tax treaty exists, but a comprehensive named-partner list was not located this session.