Prepare an ordinary individual income-tax comparison for the year 1 July 2026 to 30 June 2027. Category 2, HEPSS, pension cases, frontier-worker treaty residence and special deductions require separate review. This source-cited draft supports preparation of reviewable working papers using the stated periods, evidence requirements and computation examples. Retain source evidence and effective dates; unresolved points and professional review remain explicit. Use the linked official materials when checking a case, and obtain a qualified local review before filing or making a payment. Read the explicit exclusions before applying its calculations to different facts.
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Accountant-authored. Written and published by Ryan Duguid, an accountant approved on OpenAccountants. Their licence number is not on file. Their registration is in Australia; this skill covers GI. General reference material, not advice on your specific facts; don't file, pay, or take a position on it without a professional reviewing your situation.
If you are an AI assistant using this skill for Gibraltar individual income tax: ordinary assessment (GI): treat it as general reference material for drafting and review support. Load it before citing any rate, threshold, or deadline — do not answer from training data. Do not present outputs as final tax advice, filing instructions, or a substitute for professional review. Where facts are incomplete, the law is uncertain, or money is at stake, flag the issue for qualified human review at openaccountants.com.
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| System | Marginal bands |
|---|---|
| ABS, taxable income after allowances | First £4,000: 14%; next £12,000: 17%; remainder: 39% |
| GIBS, gross assessable income at most £25,000 | First £10,000: 6%; next £7,000: 20%; remainder: 28% |
| GIBS, gross assessable income above £25,000 | First £17,000: 16%; next £8,000: 19%; next £15,000: 25%; next £65,000: 28%; remainder: 25% |
Source-cited draft. Professional review is pending. Figures are limited to the periods and assumptions below. This Guide prepares working papers; it is not authority to file or pay.
Prepare an ordinary individual income-tax comparison for the year 1 July 2026 to 30 June 2027. Category 2, HEPSS, pension cases, frontier-worker treaty residence and special deductions require separate review.
Sources were accessed on 22 October 2026. A dated rate table controls its stated period; an undated guidance page does not prove that all later amendments have been incorporated.
Section 74 defines ordinary residence using at least 183 days in a year of assessment or presence in a year within three consecutive years whose total exceeds 300 days. Any part of a day counts. Record all three years, not just the current one. Treaty residence requires a separate conclusion. Income Tax Act 2010, s74.
Collect employment, self-employment, pensions, rents, distributions, foreign-tax evidence and allowance documents. Determine the charging provision for each item before adding it to the calculation. A residence result does not establish the treatment of every income category.
The Income Tax Office displays these ordinary bands:
| System | Marginal bands |
|---|---|
| ABS, taxable income after allowances | First £4,000: 14%; next £12,000: 17%; remainder: 39% |
| GIBS, gross assessable income at most £25,000 | First £10,000: 6%; next £7,000: 20%; remainder: 28% |
| GIBS, gross assessable income above £25,000 | First £17,000: 16%; next £8,000: 19%; next £15,000: 25%; next £65,000: 28%; remainder: 25% |
Source: Income Tax Office, “Charge to Tax”. Confirm the period-specific legislation before final use; the page also contains undated relief figures.
Arithmetic examples, before credits and with the stated bases: GIBS gross/base £40,000 gives £2,720 + £1,520 + £3,750 = £7,990. ABS taxable base £20,000 gives £560 + £2,040 + £1,560 = £4,160. These use different assumed bases and are not a comparison for one taxpayer. At the GIBS switch, test £25,000 and £25,001 separately; do not smooth a discontinuity without a sourced adjustment.
New employees supply identification and Terms of Engagement; an employee changing jobs also supplies the previous P7A. Without a code, the employer deducts 20%. PAYE registration guidance.
Release gap: that PAYE page labels its calculator 2026/27 but links to Tax Calculator 2025-2026.xls. Its allowance table is expressly 2025/26. Neither is treated here as verification of the complete 2026/27 relief calculation. Resolve the effective relief schedule and current personal-return deadline before using this as a filing computation.
General tax and accounting reference material only. These drafts have not been professionally attested. A qualified professional in the relevant jurisdiction must check the facts, current law, elections and deadlines before anyone files, pays or acts on an output.
Contributed by Ryan Duguid.
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