South Sudan became the world's youngest country on 9 July 2011, when it seceded from Sudan following a 2011 referendum in which 98.8% of the population voted for independence. The new nation inherited significant oil wealth — approximately 75% of the former united Sudan's oil production — along with severe infrastructure deficits, a largely illiterate population, and the scars of decades of civil war against Khartoum.
The optimism of independence gave way to tragedy in December 2013 when a political dispute between President Salva Kiir and former Vice President Riek Machar ignited a catastrophic civil war along largely ethnic Dinka-Nuer lines. Despite peace agreements (the Revitalised Agreement on the Resolution of the Conflict in South Sudan — R-ARCSS — of 2018), fragile stability has not held uniformly, and the country continues to face severe humanitarian challenges.
As of 2026, the FCDO advises against all travel to many parts of South Sudan and advises caution throughout. This guide is addressed primarily to:
- Development and humanitarian professionals working on South Sudan programming, typically from regional hubs (Kampala, Nairobi, Addis Ababa, or within Juba's UN compound under protective protocols)
- Members of the South Sudanese diaspora in the UK managing family assets and remittances
- Oil sector investors and professionals with legacy interests
Important: South Sudan's political, security, financial, and regulatory environment is extremely volatile. This guide provides general background only and should not be relied upon for financial or tax advice. Specialist professional advice is essential before any action. Investments can fall in value; rules can change suddenly; situations on the ground differ from the legal position.
Background: The Oil-Dependent Economy
South Sudan is one of the most oil-dependent economies on earth. Petroleum revenues account for the overwhelming majority of government revenue. The oil sector is run through the national oil company, Nile Petroleum Corporation (Nilepet), which partners in a series of joint operating companies (such as Dar Petroleum Operating Company and Sudd Petroleum Operating Company) alongside Chinese (CNPC, Sinopec), Malaysian (Petronas), Indian (ONGC), and other international partners.
When oil revenues flow, they fund both the government and — critically — patronage networks that sustain political stability or its opposite. When oil prices fall or production is disrupted (as during the civil war, when pipelines were destroyed), the state faces fiscal crisis. The South Sudanese Pound (SSP) has experienced catastrophic depreciation: from approximately SSP 3 to the dollar at independence, to several hundred to the dollar by 2026.
Tax Framework (Theoretical)
South Sudan's taxation is administered by the South Sudan Revenue Authority (SSRA). The Personal Income Tax Law provides for:
- A progressive income tax on employment income
- Withholding taxes on investment income
- A Business Profit Tax on corporate entities
In practice, the functionality of tax administration varies enormously between Juba (where some formal sector tax collection occurs) and other regions where state capacity has collapsed.
For most international professionals in South Sudan, employment income is handled through employer payroll systems. Many employers operating under UN agreements or bilateral contracts have specific arrangements regarding local tax obligations.
UK-South Sudan Double Taxation Agreement: There is no DTA between the United Kingdom and South Sudan.
Currency and Banking
Currency: The South Sudanese Pound (SSP) has experienced extreme depreciation. As of 2026, the parallel market rate has diverged significantly from any official rate. Holding SSP balances carries severe inflation and currency risk.
USD economy: Like several other oil states, South Sudan's commercial economy — particularly in Juba — is substantially USD-based. Oil revenues, large contracts, and most international business is denominated in dollars.
Banking: The banking sector is severely limited. Banks of note include:
- Bank of South Sudan (central bank)
- Kenya Commercial Bank (KCB) South Sudan
- Equity Bank South Sudan
- Ecobank South Sudan
- NIBank
Most international organisations use KCB or Equity for USD operations given their East African regional networks. Wire transfers are slow and expensive; many transactions rely on informal networks or cash.
Practical reality: Do not hold meaningful savings in South Sudan. Maintain all liquid assets offshore — Kenya, Uganda, UK, or UAE are the practical choices for most development sector staff.
Investment Climate
South Sudan's investment framework — governed by the Investment Promotion Act — provides for foreign investment protections in principle. In practice, rule of law challenges, contract enforcement difficulties, security risks, and currency inconvertibility make South Sudan suitable only for large extractive industry operators with the capacity to manage frontier market risks.
The oil sector dominates. Agriculture (South Sudan has significant agricultural potential) is almost entirely underdeveloped due to conflict. Infrastructure is among the poorest in the world.
Most financial advisers do not recommend new private direct investment in South Sudan at the current time.
The South Sudanese Diaspora in the UK
The UK hosts a significant South Sudanese diaspora community, particularly in London (Southwark, Lambeth), Leeds, Sheffield, and Edinburgh. Many are refugees or asylum seekers from the conflict period; others are professionals who came for education.
Remittances: Remittances from UK-based South Sudanese to family in South Sudan are economically significant. Domestic mobile money has reached South Sudan — m-GURUSH is the country's pioneer mobile money platform (M-Pesa itself operates in neighbouring Kenya rather than in South Sudan) — used alongside informal hawala networks for transfers. The GBP/SSP rate is critical — senders should be aware that recipients' purchasing power depends heavily on the parallel rate.
UK estate planning: For UK-resident South Sudanese nationals who have acquired UK assets, standard UK IHT and succession planning applies. Ensure wills reflect the specific wishes of the individual, particularly where family members remain in South Sudan or other diaspora locations.
UK Pension Implications
For British nationals working in South Sudan or regional hubs:
State Pension: Maintain UK NI contributions. For those based in regional hubs (Nairobi, Kampala), UK NI obligations depend on their specific employment contract jurisdiction.
QROPS: No South Sudanese pension arrangements qualify as QROPS.
Development sector professionals: Many are employed by UK-registered charities or development organisations and continue UK pension contributions (NEST or sector schemes like the SHPS for development workers).
Key Compliance Issues
- UK residence: If UK resident, worldwide income including South Sudan earnings must be disclosed to HMRC.
- Regional hub workers: Those managing South Sudan programming from Nairobi or Kampala have their tax position primarily governed by those jurisdictions. Take specific advice on Kenya/Uganda tax obligations.
- Sanctions: There are UN and EU targeted sanctions relating to specific individuals connected to the conflict. Any commercial relationship must include sanctions screening.
- Money transfers: Regulated MTOs and registered MSBs should be used for family remittances. Large informal hawala transfers carry legal and compliance risk.
Practical Financial Planning Tips
- Offshore savings only: All savings in UK, Kenya, UAE, or other stable jurisdictions. No SSP-denominated savings.
- UN compound or similar: For those physically in South Sudan, security-approved accommodation (UN compounds, international NGO compounds) is essential.
- Hardship packages: International organisation packages for South Sudan typically include significant hardship allowances, rest-and-recuperation allowances, and R&R travel. Ensure these are properly structured from a UK tax perspective.
- UK NI maintenance: Never let NI records lapse.
- Medical evacuation: Non-negotiable. Nairobi or Addis Ababa are the standard evacuation destinations. Confirm policy covers full evacuation.
- Diaspora in UK: For UK-based South Sudanese, ensure basic UK financial planning is in order — ISAs, pension contributions, UK will, and proper use of the UK system.
How Global Investments Can Help
Global Investments has over 32 years of experience advising internationally mobile professionals and diaspora communities in complex situations. For clients connected to South Sudan — whether development sector professionals, oil industry staff, or UK-based South Sudanese nationals — our advisers can assist with UK tax compliance, offshore portfolio and pension planning, estate planning, and cross-border financial structuring.
Contact our international advisory team for a confidential consultation.
This guide is for general information only and does not constitute financial advice or a personal recommendation. The value of investments can fall as well as rise and you may get back less than you invest. Tax rules, pension legislation, and investment regulations change — always verify current rules and seek advice from a qualified independent financial adviser before making any financial decisions.