Investor Protection in Tanzania: What the Treaty Does Not Cover

This page is the investor-protection operating file: what stands behind a foreign investor when a permit is withdrawn, an asset taken or a payment blocked, and which forum decides. It is not a drafting commentary, nor a promise of arbitration abroad.

• Why the country: the 2026 setup file
• Land under the project: land due-diligence checklist
• Ownership at incorporation: 100% foreign shareholding
• Two jurisdictions: Tanzania and Zanzibar

As at 14 September 2026. Confirm registration status and certificate terms on tiseza.go.tz. This file rests on the Tanzania Investment Act, 2022, the 2017 natural-wealth statutes, Article 24 of the Constitution, and your own treaty text.

What a treaty promises, and what it does not license

A bilateral investment treaty binds two States for the benefit of investors of each. The standards recur: national treatment, most-favoured-nation treatment, fair and equitable treatment, full protection and security, no expropriation without prompt and adequate compensation, and free transfer of returns in convertible currency. Where the text carries an arbitration offer, a qualifying investor may accept it and sue the State directly, after the cooling-off period the article sets.

None of that creates a right to trade. A treaty issues no business licence, residence permit, mining licence or certificate of occupancy, and displaces neither the Companies Act Cap. 212 nor the Income Tax Act Cap. 332. An activity never lawfully permitted has no protected investment behind it.

Screen the activity before you price the protection

Treaty standards matter only once the activity is one a non-citizen may lawfully carry on. The reserved and restricted list at GN No. 487A of 2025 closes certain business classes to non-citizens outright and conditions others. Land is a separate gate: under the Land Act Cap. 113 a non-citizen may hold land only for investment purposes, through a derivative right routed via the Tanzania Investment Centre, not by acquiring a village title. Mining, petroleum, telecommunications, banking and insurance add local-content obligations and change-of-control consents binding the shareholder too.

Where the class is reserved, no treaty adds anything. Structure entry into an open class, or do not enter. The shareholding page runs that screen.

The 2017 statutes: where the international route stops

The Natural Wealth and Resources (Permanent Sovereignty) Act, No. 5 of 2017 changed the answer for resource files. Section 4 proclaims permanent sovereignty; section 9 requires beneficiation at home rather than export of the raw resource; section 10 keeps resource earnings in banks established in Tanzania; section 12 gives the National Assembly review over arrangements. Forum is decided by section 11(2): disputes arising from extraction, exploitation or acquisition and use of natural wealth and resources shall be adjudicated by judicial bodies or other organs established in the United Republic. By its own section 2, it reaches Mainland Tanzania as well as Tanzania Zanzibar.

Its companion, the Natural Wealth and Resources Contracts (Review and Re-Negotiation of Unconscionable Terms) Act, No. 6 of 2017, lets the National Assembly direct renegotiation of terms it declares unconscionable, among them terms ousting the jurisdiction of Tanzanian tribunals.

Stated plainly: on a natural-resource matter, domestic legislation sends the dispute home. Whether it defeats an arbitration offer in a treaty ratified earlier is an unsettled question of international law. Do not price an international claim as a certainty on a mining, gas or forestry file.

Treaty cover is decided at incorporation, not at the dispute

Which instrument reaches you follows the shareholder chain as it stood the day the investment was made. The network includes treaties with the United Kingdom, Germany, Switzerland, Sweden, Denmark, Italy, Canada, China and Mauritius. Not every signed text entered into force, and the set moves: the Netherlands treaty was terminated with effect from 1 April 2019, its survival clause still covering earlier investments for the period that article states.

Nationality is tested. In Standard Chartered Bank (Hong Kong) Ltd v United Republic of Tanzania the tribunal declined jurisdiction, a passive shareholding not being an investment made by the claimant. In Biwater Gauff (Tanzania) Ltd v Tanzania, ICSID Case No. ARB/05/22, breaches were found and nothing awarded, causation having failed. Liability is not a cheque.

So hold the Tanzanian company through a State whose treaty is live, put real activity behind that parent, and commit capital before a dispute is foreseeable. Denial-of-benefits articles exist for shells.

Routes of recourse compared

These are not alternatives picked after the event. Four of the five are settled before the money moves.

Domestic protection, and where Zanzibar differs

Article 24 of the Constitution gives every person the right to own property and bars deprivation without fair and adequate compensation, in accordance with law. Compulsory acquisition sits in the Land Acquisition Act Cap. 118. The Tanzania Investment Act, 2022, replacing the 1997 statute, guarantees against nationalisation and expropriation without fair compensation, and transferability of net profits, loan repayments and sale proceeds in convertible currency, for investors registered with the Tanzania Investment Centre. Registration is conditional: minimum capital is commonly applied as USD 500,000 for a wholly foreign-owned project and USD 50,000 where ownership is Tanzanian. Confirm the live threshold on tiseza.go.tz.

Treaty-making is a Union matter, so an instrument of the United Republic covers both sides. The certificate desk does not: a Mainland project incorporates at BRELA and registers with TIC; an island project incorporates at BPRA and registers with ZIPA under Zanzibar’s own legislation, with separate incentives and land route.

Sequence the desks actually follow

1. Classify the activity against GN No. 487A of 2025 and the sector statute, before the shareholders’ agreement is signed.
2. Choose the holding jurisdiction against treaties in force, reading the investor definition, denial-of-benefits article and dispute clause together.
3. Incorporate and register: BRELA or BPRA, TIN at TRA or ZRA, then the certificate of incentives where the project qualifies.
4. Write the dispute clause the subject matter permits: a local forum for natural wealth, elsewhere a seat you can enforce.
5. Evidence the capital through inward remittance, importation records, asset registers and dated valuations.
6. Buy political-risk cover before the exposure exists, where project size justifies it.
7. Keep licence conditions current, because a lapse is the State’s first answer.
8. Serve notice properly: written, on time, addressed as the article requires.

Documents the file needs

Certificate of incorporation with memorandum and articles; the beneficial-ownership record; the chain up to the treaty-country parent, with certificates of incumbency and accounts showing genuine activity there; the TIC or ZIPA certificate and its conditions; the sector licence and every variation; the certificate of occupancy or derivative right; bank confirmations of capital imported, carrying SWIFT references; the investment agreement; board minutes; tax clearance and filed returns.

Then the item most investors never keep: dated correspondence with the regulator. Treatment claims are built from letters, minutes of meetings and refusals. An undated message thread is no evidence of a representation, and an officer without mandate cannot bind the State in a corridor.

Illustrative arithmetic: a statutory share is not a taking

Take a company holding a mining licence with gross annual revenue of TZS 40,000,000,000. Royalty on metallic minerals under the Mining Act Cap. 123 at 6% is TZS 2,400,000,000. The Government holds a free-carried interest of not less than 16% in the licence-holder’s share capital under the same Act as amended in 2017. A distribution of TZS 10,000,000,000 allocates TZS 1,600,000,000 to that shareholding first; a 60% foreign holder of the balance takes 60% of TZS 8,400,000,000, or TZS 5,040,000,000.

Illustrative arithmetic, not a quotation. What matters is the character of the deduction. Royalty and free-carried interest are statutory conditions of the licence the investor accepted, not a taking a treaty reverses; a tribunal reads them as the framework the investment was made in. Confirm the live royalty rate with the Mining Commission.

Where this file stalls

• A parent in a State whose treaty with Tanzania was signed but never brought into force, discovered at the notice stage.
• Capital introduced as cash or through a director’s personal account, leaving no record that an investment was made.
• A certificate of incentives obtained and then breached on employment, capital or reporting terms, which the State raises first.
• A London seat written into a gas agreement, against the express words of section 11(2).
• A claim resting on oral assurances from an officer with no mandate.
• Notice served late, or to the wrong address, wasting the cooling-off period.
• Moving the shareholding offshore after the licence was withdrawn.

What has changed

The Tanzania Investment Act, 2022 replaced the 1997 statute and rebuilt registration and incentives around TIC and the National Investment Steering Committee. The Arbitration Act, 2020 displaced the colonial-era ordinance and created a national arbitration centre, with rules of procedure made in 2021. Regionally the direction holds: Annex 1 to the SADC Protocol on Finance and Investment was amended in 2016 and carries no investor-State route, and the African Continental Free Trade Area Protocol on Investment adopted in 2023 favours domestic remedies. Read with the 2017 legislation, the trend is one-directional: design for a Tanzanian forum.

Mandate-holders this file does not replace

TISEZA registers investments and issues certificates of incentives; it grants no sector licence. ZIPA does the equivalent on the islands. The Attorney General’s chambers and the Office of the Solicitor General act for the Government in litigation and arbitration, which is where a notice lands. Sector regulators (the Mining Commission, PURA, TCRA, the Bank of Tanzania, TIRA) own licence conditions and change-of-control consent. BRELA and BPRA own the register and beneficial-ownership data. The courts own the domestic remedy, and an advocate of record, not a consultancy, conducts a claim. Zatra prepares, structures and coordinates; it does not practise law or issue approvals.

What to confirm before you act

• Whether a treaty between Tanzania and your parent’s State is in force today, and what its definition, denial-of-benefits and dispute articles say.
• Whether the subject matter is natural wealth and resources, which puts the 2017 forum provision ahead of any arbitration clause you drafted.
• Whether the business class appears on the GN No. 487A of 2025 reserved list.
• Whether certificate conditions are met, and what the live capital threshold requires.
• Whether capital importation is evidenced as the Bank of Tanzania and your auditor will both recognise.
• Whether cover through MIGA, ATIDI or an export credit agency is available, and what it excludes.