GOSI (General Organisation for Social Insurance) is Saudi Arabia's statutory social insurance authority. The contribution structure is dual-tier: Saudi nationals fall on the full GOSI schedule (covering pension, occupational hazard, and other benefits), while expatriates fall on occupational hazard only. For UK CFOs, GOSI sits where UK National Insurance Contributions sit — a statutory-funded social protection scheme calculated and accrued every cycle. Maps cleanly to UK GAAP cost categories.
What GOSI is
GOSI is the Saudi statutory authority for social insurance — pensions, occupational hazard, sickness, and related benefits. Established in 1969, GOSI manages mandatory contributions from Saudi-employed workers and their employers.
The contribution structure has two tiers. Saudi nationals fall on the full GOSI schedule — employer and employee contributions cover pension and occupational hazard. Expatriate workers fall on occupational hazard only — a much narrower contribution covering workplace injury and disability.
How GOSI maps to UK NIC
For UK CFOs, the cleanest analogue is National Insurance Contributions. Both schemes are: statutory; funded by employer and employee contributions; calculated as a percentage of wages; collected by a central authority; and used to fund social protection (pensions, etc.).
The differences matter for tracking and reporting, not for conceptual placement. GOSI's dual-tier structure (Saudi national vs expatriate) doesn't have a UK NIC equivalent — the UK NIC structure is uniform. GOSI rates and brackets move on a different cycle than UK NIC. The 2026 GOSI transition (pre-tier / full-tier per employee) adds per-employee state that's tracked at the contribution-line level.
For UK GAAP reporting, GOSI sits in the same line as UK NIC — "employer's social security contributions" or equivalent. Your per-cycle payroll summary maps it that way; your consolidation team can plug it into the regional cost centre without re-classification.
What changes per employee
Three things drive the per-employee GOSI calculation: nationality (Saudi vs expatriate), status (the 2026 pre-tier / full-tier transition tracked per employee), and contributory wage (the basic + relevant allowances that GOSI uses as the contribution base, often different from gross salary).
The contributory wage isn't always intuitive — housing allowance and certain other allowances are typically included; some discretionary payments are excluded. The engine reads the contract terms and applies the right base per employee.
Practical implications for UK and Irish CFOs
Three things to set up correctly from cycle one. First, GOSI registration must be in place before payroll runs — this is your entity's responsibility, not the specialist's. Second, every employee's nationality and (where relevant) tier status must be captured in the master record so the engine applies the right rate. Third, the GOSI cost line should be mapped to your UK GAAP reporting structure during onboarding so consolidation is clean from cycle one.