TaxLawGHby MSL Business School
MSL Business School verified Ghana tax case
Maersk Drillship IV Singapore Pte Ltd v Commissioner-General, Ghana Revenue Authority
The High Court rejected most of Maersk's requested declarations but held that GRA could not impose income tax outside the petroleum fiscal framework applicable to the OCTP project.
Published by MSL Business School through TaxLawGH.
Authority in context
Read the decision for the proposition the court actually resolved.
It explains the factual and procedural foundation of the later Maersk appellate authorities. The High Court result is not the final appellate position. The Supreme Court record controls the current outcome.
Parties
- case Title: Maersk Drillship IV Singapore Pte Ltd v Commissioner-General, Ghana Revenue Authority
Tax topics
- Petroleum income tax
- VAT
- NHIL
- PAYE
- withholding tax
Material facts
- Maersk supplied drilling services connected with the OCTP petroleum project under an arrangement invoking the Petroleum Agreement and PNDCL 188.
- GRA assessed income tax and several indirect and employment taxes for 2015–2017.
Questions before the court
- Whether the Petroleum Agreement and PNDCL 188 displaced general income-tax legislation for the relevant operations.
- Whether the VAT, NHIL, PAYE and withholding components were proved and correctly computed.
What the court held
- The High Court declared that income tax could not be imposed under other laws outside the governing petroleum regime.
- It declined most other reliefs and ordered an independent auditor to reconcile the VAT, NHIL, PAYE and withholding positions.
Ratio decidendi
The first-instance court treated the project-specific petroleum fiscal framework as controlling the income-tax question, while requiring evidential reconciliation rather than granting unqualified relief on the remaining assessments.
Order
Reliefs were partly refused and partly granted; an independent audit was ordered for the non-income-tax components.
Separate opinions
Not applicable to this single-judge High Court decision; no separate opinion is recorded in the reviewed copy.
Procedural history
This was the first-instance tax appeal. The Court of Appeal, 19 October 2023, held that Ghana permanent-establishment profits were taxable under Act 896. The Supreme Court, 2 April 2025, set that judgment aside and resolved the appeal in Maersk's favour.
Later treatment
The Court of Appeal, decided 19 October 2023, displaced the High Court result on the permanent-establishment income-tax issue. The Supreme Court then set aside the Court of Appeal judgment in Maersk Drillship IV Singapore Pte Ltd v Commissioner-General, decided 2 April 2025. The Supreme Court judgment is the controlling appellate decision.
Current-law relevance
It explains the factual and procedural foundation of the later Maersk appellate authorities. The High Court result is not the final appellate position. The Supreme Court record controls the current outcome.
Legislation considered
- Petroleum Income Tax Law, 1987 (PNDCL 188)
- Income Tax Act, 2015 (Act 896)
- Revenue Administration Act, 2016 (Act 915)
MSL Business School research layer
Detailed TaxLawGH analysis
A structured reading of the verified facts, issues, reasoning, result, later treatment and limits of the decision.
Decision identity and litigation posture
- High Court (Commercial Division), Accra decided Maersk Drillship IV Singapore Pte Ltd v Commissioner-General, Ghana Revenue Authority on 2022-07-08.
- Relevant tax or litigation period: 2015–2017.
- The recorded procedural path is: This was the first-instance tax appeal. The Court of Appeal, 19 October 2023, held that Ghana permanent-establishment profits were taxable under Act 896. The Supreme Court, 2 April 2025, set that judgment aside and resolved the appeal in Maersk's favour.
Material facts and evidential anchors
- Maersk supplied drilling services connected with the OCTP petroleum project under an arrangement invoking the Petroleum Agreement and PNDCL 188.
- GRA assessed income tax and several indirect and employment taxes for 2015–2017.
Questions the court had to answer
- Whether the Petroleum Agreement and PNDCL 188 displaced general income-tax legislation for the relevant operations.
- Whether the VAT, NHIL, PAYE and withholding components were proved and correctly computed.
Holding, ratio and scope
- The High Court declared that income tax could not be imposed under other laws outside the governing petroleum regime.
- It declined most other reliefs and ordered an independent auditor to reconcile the VAT, NHIL, PAYE and withholding positions.
- Ratio decidendi: The first-instance court treated the project-specific petroleum fiscal framework as controlling the income-tax question, while requiring evidential reconciliation rather than granting unqualified relief on the remaining assessments.
- The decision is procedural or jurisdictional in an important respect. It controls the procedural point actually resolved, but it does not settle a tax-merits issue that the court did not reach.
Order, remedy and separate reasons
- Formal order: Reliefs were partly refused and partly granted; an independent audit was ordered for the non-income-tax components.
- Separate opinions: Not applicable to this single-judge High Court decision; no separate opinion is recorded in the reviewed copy.
Legislative framework
- Legislation applied in the case: Petroleum Income Tax Law, 1987 (PNDCL 188); Income Tax Act, 2015 (Act 896); Revenue Administration Act, 2016 (Act 915).
- The decision must be matched to the legislation and tax period actually before the court, rather than treated as a free-standing statement of current rates or procedure.
Later treatment and present-day use
- The Court of Appeal, decided 19 October 2023, displaced the High Court result on the permanent-establishment income-tax issue. The Supreme Court then set aside the Court of Appeal judgment in Maersk Drillship IV Singapore Pte Ltd v Commissioner-General, decided 2 April 2025. The Supreme Court judgment is the controlling appellate decision.
- It explains the factual and procedural foundation of the later Maersk appellate authorities. The High Court result is not the final appellate position. The Supreme Court record controls the current outcome.
- Related TaxLawGH research pathways: Petroleum taxation, Permanent establishments, Fiscal stability and petroleum agreements.
Limits and research caution
- No additional source qualification is required beyond the stated court level, procedural posture, statutory period and limits of the holding.
Practical research points
- Start with the court level and later treatment: High Court (Commercial Division), Accra; The Court of Appeal, decided 19 October 2023, displaced the High Court result on the permanent-establishment income-tax issue. The Supreme Court then set aside the Court of Appeal judgment in Maersk Drillship IV Singapore Pte Ltd v Commissioner-General, decided 2 April 2025. The Supreme Court judgment is the controlling appellate decision.
- Match the present facts to the precise issues and ratio rather than relying on the case name or outcome alone.
- Check the governing provisions for the relevant period, especially Petroleum Income Tax Law, 1987 (PNDCL 188) and Income Tax Act, 2015 (Act 896).
- Separate the court's binding holding and order from obiter, dissenting reasons and questions the court did not reach.
- Confirm the procedural route, deadline and evidential burden under the law now in force before applying a historical decision.
- Use this case alongside TaxLawGH research on Petroleum taxation, Permanent establishments, Fiscal stability and petroleum agreements.
Institutional publisher
TaxLawGH is the Ghana tax and fiscal-policy knowledge system of MSL Business School.
This case brief forms part of MSL Business School’s maintained legal-research resource for Ghanaian tax law.