Gibraltar Hourly Paycheck Calculator

How Gibraltar's dual tax system and Social Insurance actually work

Under GIBS, tax is charged directly on gross income with no allowance deduction: 16% on the first £10,000, 19% on the next £7,000 (£10,000–£17,000), 25% on the next £38,000 (£17,000–£55,000), and 28% on anything above £55,000.

Under ABS, the personal allowance of £3,455 is subtracted from gross income first, and only the remaining taxable amount is banded: 17% on the first £4,000 of taxable income, 21% on the next £12,000 (£4,000–£16,000 taxable), and 28% on anything above that. Because the two systems use different starting points and different rates, ABS tends to favour lower and middle earners (thanks to the allowance), while GIBS can work out cheaper for some income levels once the allowance's benefit is outweighed by ABS's steeper early bands — which is exactly why comparing both, every time, matters.

Social Insurance is calculated on top of, and separately from, income tax: 10% of gross pay is deducted from the employee, and the employer separately contributes 20% of gross pay — both stopping once an employee's earnings for the year reach the £36,000 contribution ceiling. There is no equivalent of a multi-line contribution schedule here: Social Insurance in Gibraltar is a single flat-rate line on each side of the payslip.

Worked example: from an hourly rate to take-home pay and the employer's true cost

Take an employee paid £12.00 an hour (above the £9.50 minimum wage), working a standard 40-hour week across five 8-hour days, plus one day where she stays on for 3 hours of overtime — 2 hours at the commonly used default of 1.5x (the first two overtime hours in a day) and a third hour at 2x.

1. Regular hours: 40 hours/week (5 × 8-hour days) × £12.00/hour = £480.00.
2. Overtime on the long day: 2 hours at 1.5x = 2 × £12.00 × 1.5 = £36.00, plus a further hour at 2x = £12.00 × 2 = £24.00.
3. Weekly gross pay: £480.00 + £36.00 + £24.00 = £540.00 (annualised at 52 weeks: £28,080).
4. Tax under GIBS (bands applied directly to the full £28,080, no allowance): £1,600 + £1,330 + £2,770 = £5,700/year.
5. Tax under ABS (£3,455 personal allowance deducted first, leaving £24,625 taxable): £680 + £2,520 + £2,415 = £5,615/year — £85 lower than GIBS, so the calculator automatically applies ABS for this employee.
6. Employee Social Insurance (10% of gross, well under the £36,000 annual cap): £28,080 × 10% = £2,808/year.
7. Net annual pay: £28,080 − £5,615 − £2,808 = £19,657/year — about £378.02 for the week worked above.
8. Employer's Social Insurance (20% of gross): £28,080 × 20% = £5,616/year.
9. Total employer cost: £28,080 + £5,616 = £33,696/year, or £648.00 for that week — a true cost of about £15.07 for every one of the 43 hours actually worked.

Overtime and the minimum wage in Gibraltar

Unlike income tax and Social Insurance, there is no single blanket statutory overtime rate written into Gibraltar law for most employees — overtime pay is generally a matter of the individual employment contract, though a handful of older Wages Council orders still set rates for specific trades. In practice, the commonly used default — and the one this calculator applies unless a contract says otherwise — is 1.5 times the normal hourly rate for the first two hours of overtime worked in a day, rising to 2 times the normal rate for any further overtime hours that same day.

The minimum wage is on firmer statutory ground: £9.50 per hour, in effect since 1 July 2025, and it applies to almost every employee aged 15 and over — including the large frontier workforce that lives in Spain and crosses into Gibraltar for work each day. There is no separate, lower minimum wage for frontier workers or part-time staff.

• No single statutory overtime rate for most jobs — contract-based, with a commonly used default of 1.5x for the first 2 overtime hours/day
• 2x the normal rate typically applies to any further overtime hours worked on the same day
• A handful of older Wages Council orders still fix rates for specific trades, overriding the general default
• National minimum wage: £9.50/hour since 1 July 2025
• The minimum wage applies identically to residents and to frontier workers commuting from Spain

What the employer actually pays: Social Insurance and total cost

Compared to most European payroll systems, Gibraltar's employer-cost side is unusually simple to compute precisely: there is no separate unemployment insurance, no health insurance surcharge, and no multi-line pension schedule sitting alongside Social Insurance. The employer's only statutory addition to gross pay is Social Insurance at 20%, capped once the employee's annual earnings reach £36,000 — after that point, the employer's Social Insurance contribution for that employee stops rising even as gross pay continues to grow.

• Employer Social Insurance: 20% of gross pay, up to the £36,000/year earnings ceiling
• In the worked example above: £5,616/year in employer Social Insurance on a £28,080 gross salary
• Total employer cost in that example: £33,696/year — about £15.07 for every hour actually worked, once overtime hours are included
• No employer-side income tax equivalent — GIBS and ABS apply only to the employee's own tax liability, never to the employer's cost

Why GIBS vs ABS — and cross-border commuters — are the details competitors miss

The single biggest gap in every competing Gibraltar calculator we reviewed, including the government's own Income Tax Office tool, is that none of them automatically runs both GIBS and ABS side by side and states which one is cheaper for a given income — taxpayers are left to compute both manually, or simply trust whichever system their employer's payroll software happens to default to. Because the gap between the two systems can run into real money (£85/year in the worked example above, and considerably more at other income levels), an automatic lower-of-both comparison is a genuine, practical advantage rather than a cosmetic one.

The second detail worth calling out is Gibraltar's size and its unusually international workforce for such a small place: at 6.8 km², a large share of the people who work in Gibraltar live across the border in Spain and commute in every day. The same income tax rules, the same GIBS/ABS comparison, and the same Social Insurance rates apply to those frontier workers exactly as they do to Gibraltar residents — there is no separate expatriate or commuter tax regime — which makes a calculator that explicitly acknowledges this cross-border workforce more useful to a meaningful slice of Gibraltar's actual labour market than a generic template built for a single-country audience.