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Solomon Islands Statutory social-insurance contributions

Solomon Islands has 1 contribution branch on the calendar held here, in force from 1 Jan 1981. Last checked against the official source on 11 Aug 2026.

Mandatory payroll contributions for an ordinary private-sector employee in Solomon Islands (SB): the National Provident Fund contribution, the portion the employer may recover from the employee, the earnings and days thresholds that switch it on, and the instrument fixing the rate.

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Current value1 entries — see the API for the full schedule
In force from1981-01-01
Official sourceSolomon Islands National Provident Fund Act, Chapter 109 of the Laws of Solomon Islands [1996 Edition] — sections 13(1) to 13(4) (liability, recovery from the employee, voluntary excess contributions, prohibition on over-recovery), section 15 (time of recovery), section 16 (surcharge on late payment), First Schedule (exemptions) and Second Schedule (Rates of Contributions, as substituted by Act 8 of 1981 s.2), as published by the Solomon Islands National Provident Fund itself in its Relevant Legislation library. Solomon Islands National Provident Fund website — "About Contributions" ("The compulsory contribution rate is employer 7.5 cents and employee 5 cents for each dollar earned, total of 12.5 cents"), "About Contribution Rates" ("An employer is liable to pay monthly contributions after hiring an employee for 6 or more days and paid a wage of $20.00 or more in a month", and the requirement that the full 12.5% be allocated to each individual employee on the contribution schedule), and the interest-crediting page (interest declared by the Board on 30 September on balances after 30 June; minimum statutory crediting rate of 2.5% under the SINPF Amendment Act 2018).
Last verified2026-08-11
Verificationprimary — No verification limitation recorded — read from the official source cited.
Provenancesource fingerprint

What this value means

WHAT A PAYROLL ENGINE GETS WRONG IN SOLOMON ISLANDS. 1. THE WHOLE 12.5% IS THE EMPLOYER'S DEBT TO THE FUND. Section 13(1) imposes the contribution on the employer alone; the employee "share" is a statutory right of recovery under section 13(2), exercisable only against the wages on which the contribution was calculated and only at the time those wages are paid. A missed deduction is therefore a permanent employer cost, and recovering it from a later payslip is unlawful under sections 13(4) and 15. Model the employee's 5% as a recovery, not as a separate liability. 2. THE CONTRIBUTION IS CALCULATED ON LAST MONTH'S WAGES. "a contribution calculated upon the amount of wages payable to such employee by such employer for the preceding month". The obligation also continues into the month FOLLOWING termination, for the final month's wages. Engines that compute contributions on the current month's gross will be one period out and will drop the final contribution of every leaver. 3. COMPLETE DOLLARS ONLY. The rate applies "in respect of each complete dollar" of wages. Cents in the wage figure are ignored before the rate is applied; the resulting total per employee is then rounded UP to the next complete cent if it lands on a half cent. This is a real arithmetic rule in the Second Schedule, not a presentational convention, and it is why a straight 12.5% of gross will disagree with the Fund's schedule by a few cents per employee per month — enough to fail reconciliation on a large payroll. 4. THE THRESHOLD IS A TWO-LIMB MONTHLY TEST, NOT AN ANNUAL ONE. No contribution is due for a month in which the employee, in the PRECEDING month, earned less than SBD 20 or worked fewer than 6 days. Either limb disapplies the whole month. It must be re-tested every month, which matters for casual and seasonal labour. 5. THERE IS NO CEILING. The Second Schedule sets no maximum, so 12.5% runs on the whole of wages however high. Do not import an insurable-earnings cap. 6. THE SPLIT IS 5 AGAINST 7.5, NOT MATCHED. Mirroring the employee rate under-charges the employer by 2.5 percentage points. 7. LATE PAYMENT IS PUNISHED IN FLAT SBD 2 STEPS, NOT AS SIMPLE INTEREST. Section 16: 2% per month or part of a month, minimum SBD 2, and any surcharge above SBD 2 is rounded UP to the next multiple of SBD 2. Because it accrues on a part-month, being one day late costs a full 2%. The Board has a discretion to remit. 8. THIS IS A PROVIDENT FUND, NOT SOCIAL INSURANCE — AND IT IS THE ONLY STATUTORY PAYROLL CONTRIBUTION IN THE COUNTRY. Money goes to the member's own account and earns the Board's declared interest (minimum 2.5% per annum under the 2018 amending Act, declared by 30 September on balances at 30 June). There is no state pension insurance, no health-insurance contribution, no unemployment insurance, no maternity or sickness contribution and no separate employer training levy. Employment-injury liability sits outside the payroll system under workers' compensation law, met through employer-arranged cover rather than a percentage contribution. 9. VOLUNTARY TOP-UPS ARE STATUTORY AND HAVE THEIR OWN FORMALITIES. Employee excess contributions require WRITTEN notice to the employer and continue until written notice to stop; employer excess contributions must be in multiples of ten cents and must be notified to the Board. A system that cannot carry a per-employee override cannot implement section 13(3). 10. THE EXEMPTIONS ARE NARROW AND UNUSUAL. The First Schedule exempts only: any child under the age of fourteen years; any outworker as defined in the Workmen's Compensation Act; and any person detained in any prison, approved school, mental hospital or leper asylum. There is no exemption by industry, by employer size or by nationality — unlike neighbouring Papua New Guinea, a two-person employer in Solomon Islands is fully within the scheme. SUB-NATIONAL VARIATION: none. The Act applies uniformly across all nine provinces and Honiara; there is no provincial payroll contribution and no industry differentiation. WHAT WE DO NOT PUT A NUMBER ON: I put no number on the following, deliberately. THE PAYMENT DUE DATE. The Act says only that contributions are due to be paid "in the month during which they are due to be paid", with the surcharge running from the expiration of that month; it does not name a day. Commentary commonly states the 15th of the following month, and the Fund's own regulations set 14-day deadlines for registration and for returning interim statements, but I did not find a stated day for payment in the Act or on the Fund's pages, so no due date is served as a determined value. What is certain is that a payment made after the end of the month in which it fell due attracts the section 16 surcharge. PRESCRIBED-EMPLOYMENT VARIATIONS. Section 13(1)(b) lets the Board direct, for prescribed employments, that contributions be paid at intervals other than monthly, calculated and paid in a manner the Board directs, and by a person other than the employer, who is then deemed to be the employer. Any such direction displaces the ordinary monthly rules entirely. No such direction is served here. SOURCING CAVEATS, STATED PLAINLY: the rate, the base, the complete-dollar rule, the rounding rule, the two-limb threshold, the recovery restrictions, the voluntary-contribution mechanics, the surcharge and the exemptions are all read directly from the text of the National Provident Fund Act, Chapter 109, in the consolidation the Fund itself publishes. That consolidation is the [1996 Edition] print; amendments after 1996 are therefore not reflected in the text I read, and the 2.5% minimum crediting rate is attributed to the SINPF Amendment Act 2018 on the Fund's own website statement rather than from the amending Act, which I did not open. The current 7.5% / 5% / 12.5% figures are independently confirmed by the Fund's own current website, so the Second Schedule as read is still operative. PacLII, which hosts the Pacific consolidations, was reachable for some jurisdictions on this attempt but returned HTTP 403 for others, so the Fund's own copy of the Act was used. EFFECTIVE DATE: served as 1 January 1981 and should be read as "since 1981". The Second Schedule fixing 12.5 cents and the 5-cent recoverable portion was substituted by Act No. 8 of 1981 section 2; the commencement DAY within 1981 is not established from the consolidation, and no later amendment to the Second Schedule appears in the text I read or on the Fund's current pages. The rate has not moved in over four decades — do not index it, and do not treat a flat value as a stale record. TAX TREATMENT: whether the employee's 5% is deductible for Solomon Islands income tax is deliberately not asserted — it was not verified against the Income Tax Act.

Get it programmatically

curl https://ausref.dev/v1/sb/social-contributions
# $0.005 per call — x402 on Base (USDC). No key, no signup.
# History:    curl https://ausref.dev/v1/sb/social-contributions/history?from=2020-01-01
# Provenance: curl https://ausref.dev/provenance/sb/social-contributions

Other Solomon Islands series: CBSI Policy Rate · Sales tax · VAT registration threshold · Minimum wage (statutory hourly rates) · Public holidays · CPI inflation (headline, 3-month moving average, year-on-year) · Company income tax rate (resident) · Withholding tax rates · Court-rule interest on judgment debts · Personal income tax brackets (resident individuals)

The same figure elsewhere: Tonga · Vanuatu · Australia · Fiji · New Zealand · all 8