Treaty planning into Tanzania begins with a short list and ends with a provision most memoranda never reach. The Tanzania Revenue Authority publishes its double taxation agreements in one place, and the published list runs to nine: India, Zambia, Sweden, Norway, Italy, Finland, Denmark, Canada and South Africa. Six of the nine were concluded in the 1970s. The Zambian agreement dates from 1968.
That is the whole network. For a European group the practical consequence arrives immediately, because there is no agreement with the jurisdiction most European holdings are built in, and because even where an agreement does apply the Income Tax Act contains a domestic provision that can take it away. This article sets out what that means for structure, and what improves the position when the treaty route is closed.
Nine agreements, and when most of them were written
The age of the network is not a stylistic observation. Agreements written in the 1970s were drafted against a different commercial world and, more importantly, before the anti-abuse architecture that now shapes how source countries read them. They allocate taxing rights in familiar ways, but they do so without the entitlement to benefits provisions that modern treaties carry, which changes how they are administered rather than how they read.
The list also determines which European holding jurisdictions have any bilateral relief at all. Sweden, Norway, Finland, Denmark and Italy do. That is a real consideration for a Nordic or Italian group and an irrelevant one for most others, since the agreement has to exist between Tanzania and the jurisdiction of the actual recipient, not somewhere in the group’s history.
The rest of the continent is largely absent from the list as published, with Zambia and South Africa the exceptions. A group operating in Tanzania and three neighboring countries should not assume that regional agreements will carry its intra-group flows.
For a Dutch holding, there is no treaty at all
Tanzania does not appear on the Dutch Ministry of Finance’s overview of treaties in the field of direct taxes as at 1 July 2026, in any status. There is no agreement in force and none signed and awaiting entry into force. A Dutch parent above a Tanzanian subsidiary therefore takes Tanzanian domestic rates on every flow, without reduction.
This is worth stating plainly because the Netherlands is the default answer to a great many African structuring questions, and in this one it is not an answer to the Tanzanian layer of the problem. It remains a good answer to the European layer, for the reasons it always is: a participation exemption on qualifying shareholdings, a balance sheet lenders and buyers can read, and a jurisdiction that behaves predictably. Those are shareholder-side benefits. None of them reduces a Tanzanian withholding.
The correct conclusion is not to abandon the Dutch company but to stop pricing the structure as though relief existed. Models that quietly apply a treaty rate to Tanzanian dividends are wrong by the full amount of the withholding, and the error usually survives until the first distribution.
Section 154, which turns a treaty question into an ownership question
For groups that do have a treaty, there is a provision that has to be read before the treaty is relied on. It is section 154 of the Income Tax Act as revised in 2023, which was section 128 in the earlier consolidation and is still cited under the old number. It provides that where the terms of an international agreement are inconsistent with the Act, the agreement prevails, but it expressly carves out subsection (5) from that priority.
Subsection (5) then denies the exemption or reduction that the agreement provides to an entity that meets two conditions. First, that the entity is a resident of the other contracting state for the purposes of the agreement. Second, that fifty percent or more of its underlying ownership is held by persons, being individuals or entities in which no individual holds part of the underlying ownership, that are not residents of the other contracting state or of Tanzania for the purposes of the agreement.
This is a limitation on benefits written into domestic law and expressly ranked above the treaty. Its effect is that treaty residence is not enough. A holding company in a treaty state whose own shareholders are elsewhere loses the benefit by operation of the Act, regardless of what the agreement says and regardless of the company’s substance. Groups that place a Danish or Swedish company above a Tanzanian subsidiary while the ultimate owners sit in a third country should model the position twice, once with the treaty and once without, because subsection (5) may decide which applies.
Rates without a treaty, flow by flow
Domestic rates set the floor for anyone outside the network. Corporation tax is 30 percent on the total income of a corporation, and a domestic permanent establishment of a non-resident is taxed at 30 percent on the same footing.
On distributions, the Authority’s withholding table puts dividends from corporations listed on the Dar es Salaam Stock Exchange at 5 percent and dividends from other corporations at 10 percent. Interest bears 10 percent, and so does rent. Natural resource payments bear 15 percent. A service fee to a non-resident bears 15 percent, a professional fee to a resident 5 percent, and management or technical fees in mining, oil and gas paid to a resident 10 percent, raised from 5 by the Finance Act 2025. Payments the First Schedule does not name fall into a residual limb at 15 percent.
One caution about where those figures come from, because it decides which document to quote in a memorandum. The table and the statute do not always agree, and neither is complete on its own: the consolidated Act closes at the 2023 revision and does not carry the 2025 and 2026 changes, and the table carries some of them and not others. Royalties are the clearest case. The table shows a flat 10 percent, while the First Schedule confines its 10 percent royalty limb to paragraph (c) of the statutory definition, which reaches a cinematography film, videotape or sound recording, and leaves the rest in the residual limb. A royalty rate taken from either document alone should be confirmed with the Authority.
Two further items catch groups that plan around distributions. Where an entity has made no distribution for twelve months after the end of the year of income, the Commissioner may treat part of its profit as having been distributed on that date. The Finance Act 2025 introduced that deemed distribution at 30 percent of profit and the Finance Act 2026 cut it to 15, so retaining profit does not defer the charge. And a corporation with perpetual unrelieved losses for three consecutive years, outside agriculture, health and education, is taxed at 1 percent of its turnover in the third year, a minimum charge that falls hardest on capital intensive projects in their early years.
Section 56, and the sale nobody planned for
The provision that produces the largest single surprises is section 56. Where the underlying ownership of an entity changes by more than fifty percent compared with that ownership at any time during the previous three years, the entity is treated as realising any assets it owns and any liabilities it owes immediately before the change.
That is a deemed disposal of the Tanzanian company’s assets, triggered by a transaction at shareholder level that may have happened entirely outside Tanzania. It does not require the Tanzanian company to have been sold. It requires its underlying ownership to have changed by more than half, which a group reorganization, a fund’s transfer of its interest or a sale of the ultimate parent can achieve without anyone in Dar es Salaam being a party.
Section 56 also restricts what happens afterwards. Losses incurred before the change cannot be deducted after it, and related carry back and inclusion provisions are switched off, unless for two years the entity carries on the same businesses in the same manner and conducts nothing else. So the event accelerates a charge and, in most transactions, removes the shelter that might have absorbed it.
Alongside this sit the rates on realization by single instalment: 30 percent for a non-resident, raised from 20 by the Finance Act 2025, 10 percent for a resident, and 30 percent where the asset is a mineral or petroleum right. A group planning an upstream transaction should test it against section 56 first and against the rate second, because the first question is whether a Tanzanian charge arises at all.
The branch, and the ten percent that gets forgotten
Operating through a branch rather than a subsidiary is common in project work and the published position is straightforward. The total income of a domestic permanent establishment is taxed at 30 percent, and the repatriated income of a domestic permanent establishment of a non-resident bears a further 10 percent.
That second charge is the one that disappears from models. It sits at the same level as the dividend withholding on an unlisted subsidiary, which means the branch route is not the saving it is often presented as, and it applies to repatriated income rather than to a declared distribution, so it is not avoided simply by not declaring anything.
Financing the Tanzanian entity has its own constraint. The Act limits the interest deduction of an exempt controlled resident entity by reference to a debt to equity ratio of 7 to 3, and an entity is exempt controlled where twenty five percent or more of its underlying ownership is held by exempt entities, approved retirement funds, charitable organizations, non-residents or their associates. A foreign owned Tanzanian company financed largely by shareholder debt will meet that test and should be capitalized accordingly.
What actually improves the position
Since the treaty route is unavailable to most European groups, the improvements are structural rather than rate driven. Four are worth the work.
Capitalize the Tanzanian entity properly at the outset, with the 7 to 3 ratio in view, so that the interest deduction survives and the group is not later forced to convert debt into equity under pressure. Plan the distribution rhythm around the deemed distribution rule rather than against it, because retaining profit for more than twelve months after year end brings part of it into charge anyway. Price services into Tanzania knowing which rate attaches to which description, since a fee to a non-resident, a professional fee to a resident and a mining sector technical fee are treated differently. And, before any transaction at shareholder level anywhere in the group, test whether it moves underlying ownership by more than half against any point in the previous three years.
None of that is elegant. It is the honest answer for a country with a short treaty network, a domestic override that ranks above the agreements it has, and an ownership rule that reaches transactions concluded on another continent. Groups that accept those facts early build a Tanzanian position that survives an audit and a sale. Groups that plan around a treaty they do not have discover the difference at the worst point in the cycle, which is when the buyer’s adviser reads section 56 for the first time.
This article is informational and does not constitute tax or legal advice. The treatment of any structure depends on its facts and on the law of each jurisdiction involved. Each engagement is subject to scope and applicable regulation.