A Tax Residence Guide for Foreigners in East Africa

 Why a residence permit, a day count and a tax liability are three different questions

A foreigner can live legally in an East African country without yet being tax resident there. The reverse can also happen: a person can satisfy a tax residence test even though immigration paperwork is still being processed. That is because a residence permit belongs to immigration law, while tax residence is a fiscal test used to decide how a country connects a person to its income tax system.

This distinction matters from the first working day. A non-resident is not automatically outside the tax system. Salary for work performed locally, rent from local property, fees paid by a local business or other locally sourced income may be taxable before the person becomes resident. Residence then answers a second question: whether the country may look beyond local income and, depending on its law, bring foreign income into the tax calculation.

The practical mistake is therefore to ask only, “Have I spent 183 days here?” The safer approach is to ask three questions in order. What makes me resident under this country’s tax law? Is my income taxable here even if I remain non-resident? If I become resident, what happens to income earned outside the country?

Immigration residence is not tax residence

A work permit, dependent pass or residence card shows that the holder has immigration permission to stay for a particular purpose. It does not normally decide tax residence. Tax statutes use their own connecting factors: permanent home, habitual abode, physical presence, professional activity, domicile or a multi-year day-count test.

This explains why the famous 183-day rule is often misunderstood. In some countries it is only one route to residence. Kenya, for example, can treat an individual as resident where the person has a permanent home in Kenya and is present there for any period during the year. Rwanda can rely on permanent residence or habitual abode without waiting for 183 days. The Democratic Republic of the Congo’s new personal income tax system also looks at a permanent home or principal place of stay and at a main professional activity, as well as a 183-day test.

Nor does being below 183 days mean the salary is tax-free. Source rules can tax employment because the work is performed in the country or because the payer has the required local connection. A person planning a six-month assignment should therefore never use “under 183 days” as a substitute for reading the source-of-income rule.

Kenya: residence has three routes, but foreign income needs care

Kenya’s Income Tax Act uses a familiar but important sequence. An individual with a permanent home in Kenya is resident if present in Kenya for any period during the year. Without a permanent home, residence arises where the person is present for at least 183 days in the year, or is present in the current year and each of the two preceding years for periods averaging more than 122 days in each year.

Tax liability should then be separated from residence. Kenya Revenue Authority states that a non-resident’s employment income can still be taxable where it is paid for employment or services connected with a Kenyan resident employer or permanent establishment. For a resident individual, employment income earned outside Kenya is one of the statutory situations in which foreign income is brought into Kenyan taxation.

That last point should not be turned into the loose statement that every foreign receipt of every Kenyan resident is automatically taxable. KRA describes Kenya as principally source based and identifies specific foreign-income exceptions, including resident foreign employment and business carried on partly inside and outside Kenya. A foreign worker with overseas investments should therefore classify each income stream rather than assuming that “resident” alone answers everything.

Uganda: worldwide residence has an important newcomer exception

Uganda treats an individual as resident if the person has a permanent home in Uganda, is present for at least 183 days in a twelve-month period that begins or ends during the year of income, or is present in the current year and each of the preceding two years for periods averaging more than 122 days in each year. Government employees or officials posted abroad are also covered by a separate rule.

The general effect of residence is broad. Section 17 of Uganda’s Income Tax Act provides that a resident person’s gross income includes income from all geographical sources, while a non-resident’s gross income includes only income from Ugandan sources. Employment exercised in Uganda and several payments connected to Ugandan residents or Ugandan branches can be Ugandan-source income.

There is, however, a valuable rule for a newcomer. The Act exempts foreign-source income of a “short-term resident”, defined for this purpose as a resident individual who is not a Ugandan citizen and whose presence in Uganda does not exceed two years. A newly arrived foreign professional can therefore become tax resident without immediately being treated in exactly the same way as a long-term resident for foreign-source income. That exception should be checked carefully against the person’s actual period of presence and income type.

Rwanda: habitual abode can matter before the day count

Rwanda’s current income tax law provides several alternative residence tests. An individual can be resident by having a permanent residence or habitual abode in Rwanda. Residence also arises from presence of at least 183 days during the tax period, or from presence in the current period together with periods averaging more than 122 days in each of the two preceding tax periods. A Rwandan representing Rwanda abroad is separately covered.

Rwanda Revenue Authority makes the consequence clear: a resident taxpayer is generally liable on income from domestic and foreign sources, while a non-resident is liable only on Rwanda-source income. Services and employment performed in Rwanda are among the income items that can have a Rwandan source.

There is also a narrowly targeted foreign-income exemption for qualifying experts or professionals working directly for entities carrying out Kigali International Financial Centre licensed activities, where the statutory conditions are met. For most foreign employees, however, the practical lesson is simpler. Do not wait for the 183rd day if Rwanda has already become your permanent residence or habitual abode.

Tanzania: a new resident may still be taxed on a source basis

Tanzania’s Income Tax Act uses the permanent-home test, the 183-day presence test, the three-year average of more than 122 days and a rule for government employees or officials posted abroad. The general rule is that a resident person’s income from employment, business and investment is taxed irrespective of source, while a non-resident is taxed only on income having a source in the United Republic.

Tanzania then adds an exception that is easily missed in short online summaries. Under section 6 of the current Income Tax Act, the chargeable income of a resident individual who, by the end of the year, has been resident in the United Republic for two years or less in total during the whole of that individual’s life is determined on the source basis used for a non-resident.

That makes the first years of an assignment especially important. A person may already satisfy Tanzania’s residence test but still have a different foreign-income exposure from a long-established resident. The employee should therefore record both the date tax residence starts and the total lifetime period of Tanzanian residence relevant to that rule.

Burundi: the law combines residence, source and foreign tax credit

Burundi’s current income tax framework, as amended by Law No. 1/14 of 24 December 2020, treats an individual as resident if the person has a permanent residence in Burundi or stays there, continuously or intermittently, for more than 183 days during a twelve-month period ending in the relevant fiscal year. Burundian diplomatic or consular officials posted abroad are dealt with separately.

The law then defines Burundi-source income. It includes income from employment exercised in Burundi and income from certain services supplied to a Burundi resident or a permanent establishment in Burundi, as well as local property and business income. This means local tax exposure can arise even where the individual has not crossed the residence threshold.

The same legislation provides a foreign tax credit where a resident receives foreign-source income or profit and foreign tax has been paid or is due on it, subject to the statutory limit and supporting evidence. The existence of that credit is a practical reminder that residence can bring foreign income into the Burundian calculation. Keep the foreign assessment, withholding certificate or comparable proof; the credit is an evidence question as well as a legal one.

DRC: the rules changed fundamentally in 2026

The Democratic Republic of the Congo is the country where outdated expatriate tax articles are most dangerous. From 1 January 2026, the new Impôt sur le Revenu des Personnes Physiques, or IRPP, introduced by Law No. 23/053 of 30 November 2023, replaced major parts of the old schedular income tax structure. The DGI is actively administering the new system in 2026.

Under the new framework, an individual has habitual residence in the DRC where the person has a permanent home or principal place of stay there, carries on a main salaried or self-employed professional activity there, or spends at least 183 days, continuously or otherwise, during a twelve-month period. A resident individual is within IRPP regardless of nationality and the source of income. A non-resident is nevertheless taxable on Congolese-source income, and a non-resident employee working in the DRC can be caught where the employer is resident or established there.

The practical lesson is not to use an old article about the former IPR system to decide 2026 residence. First determine whether the new habitual-residence tests are met, then identify the income categories within the new global IRPP system.

South Sudan: domicile can make the 183-day count irrelevant

South Sudan’s consolidated Taxation Act defines a resident individual as someone domiciled in South Sudan or physically present there for 183 days or more in a tax period. The tax period is the calendar year. Domicile is therefore a separate route; the day count is not the only test.

The Act is also explicit about scope. A resident individual is taxed on taxable South Sudan-source and foreign-source income, while a non-resident is taxed on South Sudan-source income. South Sudan-source income includes wages arising from work done within the territory.

A foreign employee should consequently record where the work is physically performed, not merely where salary is paid. If the person remains non-resident, locally performed work may still produce a South Sudan tax liability. If residence arises, foreign-source income becomes a separate compliance question.

Somalia: use the 2025 law, not the old 1966 framework

Somalia’s federal income tax framework changed materially in 2025. The Ministry of Finance now publishes Income Tax Law No. 37 of 11 May 2025, the Income Tax Regulations 2025 and an English Income Tax Manual released in December 2025. The Revenue Directorate is applying the new law to payroll and personal income tax.

This matters because many older summaries still discuss the 1966 income tax law as though it were the current general framework. The 2025 regulations expressly replace references to the old law with Law No. 37 and require Federal Member State administrations, for taxes they continue to administer during the transitional arrangements, to follow the 2025 Income Tax Law and Revenue Administration Law.

For a foreign individual, the safest practical step is to determine resident or non-resident status directly under Law No. 37 and the current Income Tax Manual before relying on a day-count figure reproduced on a third-party website. The current federal materials clearly distinguish resident and non-resident treatment, and the Revenue Directorate states that employment income earned within the country is subject to payroll tax. Because the official searchable materials reviewed for this article do not expose the full statutory residence definition in a reliable text extract, this article does not invent a numerical test. That point should be confirmed from the current manual or Revenue Directorate for the particular tax year.

Two countries can both call you resident

Tax residence is not always exclusive. A person can keep a permanent home in one country while spending enough time or developing enough connections to satisfy the domestic law of another. Domestic law may therefore produce dual residence.

A double taxation agreement, where one applies between the countries concerned, can then provide a separate treaty test. The Kenya notice implementing the regional agreement with Rwanda, Uganda and Tanzania, for example, uses concepts including permanent home, centre of vital interests, habitual abode and nationality to resolve individual dual residence. That does not create a single tax-residence rule for all eight EAC states, and a treaty should never be assumed to apply merely because both countries belong to the EAC.

Foreign tax credits can also reduce double taxation where domestic law allows them. They do not remove the need to declare income or keep evidence of foreign tax. Before claiming relief, identify the relevant treaty or domestic credit provision and obtain the foreign tax certificate, assessment or withholding record required by the local authority.

Keep a tax-residence file before a dispute starts

For an internationally mobile worker, the most useful compliance tool is a simple factual record. Keep the passport and entry history, travel calendar, lease or home documents, employment start date, contracts, payroll statements, taxpayer number, evidence of where work was physically performed, and records of foreign salary, investment income and tax paid abroad. If family and permanent-home connections may affect residence, keep the documents needed to explain those facts too.

Review the position before the end of each tax year rather than after receiving a query from the revenue authority. A change of job, a longer-than-planned stay, a new home or repeated travel over several years can alter the result. The 122-day averaging rules in Kenya, Uganda, Rwanda and Tanzania are a good example: this year’s tax residence can depend partly on where you were in earlier years.

The safest conclusion is also the simplest. Immigration permission tells you whether you may live or work in a country. Tax residence tells the revenue authority how strongly you are connected to its tax system. Source rules tell it whether a particular payment is taxable there even without residence. A foreigner needs all three answers before deciding where income must be declared.

Sources and publication note

Source note. This article was prepared from current official and primary materials reviewed for publication on 3 September 2026, including Kenya’s Income Tax Act and Kenya Revenue Authority guidance on residence, non-resident employment income and foreign income; Uganda’s Income Tax Act and Uganda Revenue Authority residence guidance; Rwanda’s Law No. 027/2022 establishing taxes on income and current Rwanda Revenue Authority personal income tax guidance; Tanzania’s Income Tax Act, Cap. 332, Revised Edition 2023; Burundi’s Law No. 1/14 of 24 December 2020 amending the income tax law and Office Burundais des Recettes materials; the Democratic Republic of the Congo’s Law No. 23/053 of 30 November 2023, the Finance Law for 2026 and current Direction Générale des Impôts IRPP guidance; South Sudan’s Taxation Act 2009, Revised Edition 2021; and Somalia’s Income Tax Law No. 37 of 11 May 2025, Income Tax Regulations 2025, Income Tax Manual and Revenue Directorate guidance. Tax treaties, exemptions and personal facts can change the result. This is general legal information, not individual tax advice.

Suggested citation:

Ronald Serwanga, “A Tax Residence Guide for Foreigners in East Africa” East Africa Legal Insight (3 September 2026).