Non-Compete Clause Tanzania: What Employers Can Enforce After Exit

A non-compete clause in Tanzania is a contract term, not a statutory right. Many employers copy one from a foreign template and expect it to stop a departing sales head joining a rival. On the Mainland, one short section of the Law of Contract Act decides it, and it puts the burden on the employer.

What the law says

The governing rule is section 27 of the Law of Contract Act, Cap. 345, in the TanzLII consolidation at 30 November 2019. Subsection (1) provides that "every agreement by which anyone is restrained from exercising a lawful profession, trade or business is to that extent void". The same sentence adds the exception: unless the restraint is reasonable for the parties concerned and for the public.

Subsection (2) narrows that test. A restraint is not reasonable between the parties if it "exceeds what is reasonably necessary to protect a proprietary interest of the promissee". Subsection (3) splits the burden of proof. The employer, as promisee, must prove reasonableness between the parties. The employee must prove any harm to the public interest.

Two points follow. First, section 27 is not a total ban. Some articles describe Tanzania as following the Indian model, under which almost every restraint is void except on a sale of goodwill. The Mainland text reads differently: it applies one reasonableness test to every restraint, and it has no separate goodwill exception. Second, the word "to that extent" matters. A clause is void only so far as it goes too far, which leaves room for argument about cutting it back. Draft each limb to stand alone, in case a court strikes an over-wide clause whole.

Section 28, which some guides cite for restraint of trade, deals with something else: agreements that stop a party from going to court. The Law Reform Commission hosts an official copy of Cap. 345 carrying the same numbering. Any later revised edition should be checked for renumbering before a section number goes into a pleading.

Employment law sits beside contract law. The Employment and Labour Relations Act, Cap. 366 R.E. 2023 (ELRA) governs notice, particulars and termination. It contains no section on non-competes. The Labour Institutions Act sets up the Commission for Mediation and Arbitration (CMA) and the Labour Court.

Who should read this

• Employers drafting or updating contracts for sales, technical and management staff.
• HR teams handling a resignation where the employee is joining a competitor.
• Foreign investors whose head-office template carries a 12 or 24 month worldwide non-compete.
• Buyers and sellers of a business, shareholders, and employers in Zanzibar.

Is a non-compete clause enforceable in Tanzania?

Sometimes, and less often than employers expect. The clause starts from void. The employer then has to show three things. It has a proprietary interest worth protecting. The restraint goes no further than needed to protect it. The restraint does not harm the public.

A proprietary interest is something the business owns or has built: client connections, supplier terms, pricing models, formulas, source code, tender strategy. An employee's general skill and experience is not the employer's property. A clause whose real aim is to stop competition, or to keep a good worker from leaving, protects no proprietary interest. It is the kind of clause section 27(2) strikes down.

The employee's role matters most. A receptionist or junior driver rarely holds client relationships or secrets. A country sales manager, a lead engineer or a finance director often does. The same clause can therefore be reasonable for one person and void for another in the same company.

How have Tanzanian courts treated restraint clauses?

We searched TanzLII for High Court, Labour Court and Court of Appeal decisions on employee restraints. We could not confirm a reported decision on point from the full judgment text, so this article cites no case. Treat any case name in a template or blog post as unverified until an advocate has read the full judgment.

The principles below come from the statutory text and the common-law tradition Tanzanian courts draw on. Courts look at the employee's actual role and access, not the job title. They expect the employer to prove the interest with evidence, such as client lists the employee handled. A restraint applied to every employee regardless of role starts weak.

A practical point follows from the Labour Laws (Amendments) Act, No. 4 of 2025. An employer cannot start or continue a disciplinary matter once the same matter is referred to the CMA or a court. A restraint dispute that grows out of a dismissal therefore needs its order of steps planned. Our guide to disciplinary hearings covers that sequence.

What makes duration, area and activity reasonable?

Section 27 gives no fixed limits. Reasonableness is judged on three axes, each tied to the interest being protected.

• Duration. The period should match how long the employee's knowledge stays useful to a rival, or how long it takes a replacement to win the client's trust. For many roles that is months, not years. A period longer than the employee's own service is hard to defend.
• Area. The area should match where the employee worked or had clients. A Dar es Salaam sales role does not justify a ban across East Africa. A regional director who managed Kenya, Uganda and Tanzania may justify more.
• Activity. The clause should name the activity, product line or client group the employee worked in. A ban on working "in any business" is the commonest drafting fault.

No Tanzanian statute or regulation sets a safe number of months. Any figure in this article is an example, not a rule.

Clause types and how far each can be enforced

The table ranks the usual restrictive clauses by how likely they are to hold on the Mainland. The tiers are Zatra's assessment of the section 27 test, not a court ruling.

Are confidentiality and trade secret clauses enforced separately?

Yes, and they are the stronger tool. Tanzania has no standalone trade secrets statute. FB Attorneys' August 2026 note describes protection through contract, the common law of confidence and the employee's duty of good faith. A confidentiality clause does not stop the employee working for a rival. It stops the employee taking and using the employer's secrets there. That is a smaller restraint, so it is easier to justify.

The clause should define what is confidential. "All information" invites a challenge. A schedule naming pricing files, client terms, product formulas, code repositories and tender documents is easier to enforce. Access controls and marked documents show the employer treated it as secret.

Client and staff records are also personal data. The Personal Data Protection Act, 2022 applies to Mainland Tanzania and Zanzibar. An employee who leaves with a client database may raise questions under that Act as well as under the contract. Our guide to employee data and HR files explains the employer's own duties.

Can you stop a former employee soliciting clients and staff?

Often, if the clause is narrow. A client non-solicitation clause protects the client connection the employee built at the employer's expense. It is tied to a recognised proprietary interest. Courts in the common-law tradition accept it more readily than a full non-compete.

Keep it to clients the employee dealt with in the last 12 months of service, or a named list, and keep the period short.

Staff non-solicitation protects a stable workforce. Limit it to employees the departing person managed or worked with closely. A clause that bars hiring anyone from the company is wider than needed.

Agreements between competing employers not to hire each other's staff are a separate risk. Section 8 of the Fair Competition Act, 2003, as enacted, bars agreements that appreciably restrict competition. Section 14(1) exempts agreements on conditions of employment, but whether that covers an agreement between two employers is not settled. Take advice before signing one.

How do garden leave and notice work under ELRA?

Garden leave means the employee stays employed and paid during notice but does no work and has no client contact. ELRA does not use the term. It works through the notice rules in section 42 and the contract.

• Statutory minimum. Section 42(1) sets 28 days for a monthly-paid employee after the first month, 4 days for daily or weekly workers, and 7 days in the first month.
• Longer notice. Section 42(2) allows a longer period by agreement, but it must be equal for employer and employee. A six-month notice clause binds the employer too.
• Pay in lieu. Section 42(5) lets the employer pay the notice period instead of giving notice. Employment then ends at once, so garden leave is no longer available. Any protection after that point depends on the restraint clauses.
• Refusal to work notice. Section 42(6) lets the employer deduct from final pay the amount for notice the employee refuses to work.
• Leave. Section 42(4) bars notice during statutory leave, so annual leave cannot be folded into the garden leave period.

Garden leave has one legal advantage. The employee remains bound by the duty of good faith, so joining a rival during that time breaches the employment contract itself. The cost is full salary. The contract must say expressly that the employer may withdraw duties, access and client contact during notice.

Where must the restraint sit in the contract?

Put restrictive covenants in the signed contract, not only in a handbook. Section 15 of ELRA (R.E. 2023) requires a contract to be in writing. Section 16 lists the written particulars the employer must give at the start: job description, workplace, hours, remuneration and other prescribed matters. Older material cites these as sections 14 and 15 under R.E. 2019. Section 16(4) requires changes to be made in consultation with the employee and notified in writing.

A restraint added mid-employment needs the employee's signed agreement and, preferably, something in return such as a promotion. The job description in the particulars is also evidence of what the employee did, so it should match the scope the restraint relies on. Our guide to employment contracts and workplace policies covers the full contract file, and our fixed-term contract guide covers term contracts.

What changes for foreign employees on work permits?

A non-citizen's work permit under the Non-Citizens (Employment Regulation) Act, Cap. 436 is issued for work with a named employer. A foreign employee who resigns cannot start with a competitor until the new employer obtains a fresh permit. The Class C fee is USD 1,000 (F0415). In practice this delays a move, but it is not a restraint the old employer controls. The Labour Commissioner decides the new application on its own criteria. Our guide to changing employer on a work permit explains the steps.

Two further points apply. Act No. 4 of 2025 allows a fixed-term contract for a non-citizen granted a permit for a defined duration. A restraint tied to a short fixed term should match it. And restraint clauses copied from a foreign group contract often name a foreign governing law. Whether a Tanzanian court would apply that choice to work done here is a question for an advocate.

Shareholder, partner and sale-of-business restraints are different

Section 27 applies to every restraint, not only employment. The interest being protected, and the bargaining position of the parties, change the result.

• Sale of a business. The buyer pays for goodwill. A covenant that stops the seller competing for a period protects that purchase. It is the clearest example of a proprietary interest, and wider terms are usually easier to justify than in employment.
• Shareholders. A shareholders' agreement can bar shareholders from competing while they hold shares and for a period after exit. A founder who is also an employee may sign both kinds. Keep them in separate documents with separate reasons. See our guide to the shareholders' agreement in Tanzania.
• Partners. Section 196 of Cap. 345 requires a partner who runs a competing business without consent to account to the firm for the profits, subject to the partnership agreement.

How does Zanzibar differ?

ELRA and the CMA cover Mainland Tanzania. Zanzibar has its own Employment Act, No. 11 of 2005, published in the Zanzibar Government Gazette of 7 October 2005. We found no restraint of trade provision in it. Its section 54(3) sets minimum notice by length of service: two weeks, one month or three months.

Zanzibar contract law is the Contract Decree, Cap. 149, according to a 2015 article in the Journal of Law, Policy and Globalization. We could not obtain the Decree's text. Its restraint of trade rule is therefore unknown to us, and the Mainland section 27 test should not be assumed to apply. Non-citizen work permits in Zanzibar go through ZIPA and the Zanzibar authorities, as ZIPA's eRegulations portal describes.

For a Zanzibar employer, our guide to the Zanzibar work permit covers the permit side.

Worked example: garden leave versus a paid restraint

A Dar es Salaam distributor employs a regional sales manager on a basic salary of TZS 6,000,000 a month. She holds the company's top 40 accounts. She resigns to join a competitor. The employer compares three exits. Figures are gross salary only; employer social security and levies come on top at the rates in force.

Option A costs TZS 36,000,000 (6 × 6,000,000). It also binds the employer: under section 42(2), the six-month notice applies to the employer too. Option B costs TZS 6,000,000 for 28 days. It saves TZS 30,000,000 but leaves the company to prove a six-month ban is reasonable if she joins the rival on day 29. Option C costs TZS 18,000,000 (3 × 6,000,000) and swaps the broad ban for a client clause the company can defend.

Some employers add a monthly payment during a post-employment restraint, for example half salary. No Tanzanian law requires this. It may help show the restraint is fair, but it does not cure an over-wide clause. In Option B, half salary for six months would add TZS 18,000,000.

Enforcement has its own price. If she breaches and the company sues in the High Court, the official court fees include TZS 500,000 for a plaint seeking a permanent injunction (F0157) and TZS 50,000 for an interlocutory application (NEW-01-28). The Commercial Division charges TZS 300,000 for a permanent injunction item (NEW-01-38). A referral to the CMA carries no published fee (F0452). Advocate fees are separate and depend on the matter.

Enforcing a restraint: CMA, Labour Court or High Court?

Choosing the forum is a decision for an advocate. Section 95(1) of ELRA gives the Labour Court jurisdiction over applications including injunctions. Disputes under the labour laws generally go first to the CMA for mediation, then to arbitration within 30 days of a failed mediation under Act No. 4 of 2025. A restraint claim against a former employee rests partly on the Law of Contract Act. Whether it belongs in the CMA and Labour Court or in the ordinary civil courts depends on how the claim is framed and on current case law. We could not verify the current position.

Speed matters. An injunction application weakens with every week of delay. Before filing, the employer should hold the signed contract, proof of the employee's access, evidence of the breach, and a letter before action. A former employee may also counterclaim that the termination was unfair. Under the 2025 amendments, compensation then ranges from 6 to 24 months' remuneration depending on the ground. Our guides on CMA disputes and termination procedure cover that file.

Representation before the CMA, the Labour Court or the High Court, any demand letter that may lead to litigation, and any legal opinion on a specific clause belong with an advocate. Zatra has one on the team and coordinates the file.

What to do now

1. List the roles that matter. Identify staff who hold client relationships, pricing, code or tender knowledge. Leave blanket clauses off everyone else.
2. Define the interest. For each role, write down the clients, products and information the restraint protects.
3. Rewrite in separate limbs. Use separate clauses for confidentiality, client non-solicitation, staff non-solicitation and any non-compete, each with its own period and area.
4. Set notice and garden leave. Decide whether senior staff get longer, equal notice with an express garden leave right under section 42(2).
5. Update the particulars. Align job descriptions under section 16 and obtain signed consent for any new restraint.
6. Build the exit checklist. Cover return of devices and data, access removal and a written reminder of continuing duties.
7. Treat Zanzibar and foreign staff separately. Check the Zanzibar Act and contract law, and plan around work permit timing.
8. Brief an advocate early. On any breach, send the evidence to an advocate within days, not weeks.

Key dates and deadlines

How Zatra helps

Zatra's HR consulting team reviews restraint, confidentiality and garden leave clauses role by role and aligns them with the written particulars. Our payroll compliance team costs notice and garden leave options. The work and residence permit team plans foreign staff moves. On a business sale, our M&A advisory team reviews key employee covenants in due diligence.

Government charges, such as court fees or a work permit fee, are paid at the official rate against the authority's control number. They are separate from Zatra's professional fee and are never marked up. Fee IDs refer to Zatra's government fee register. Zatra prepares the file and the advocate on our team handles court and CMA work. Zatra does not decide or guarantee any authority's outcome. Contact us to review a clause or an exit.

Sources and status

Accurate as at 7 November 2026.

• Law of Contract Act, Cap. 345. TanzLII, consolidation at 30 November 2019. Accessed 7 Nov 2026.
• Law of Contract Act, Cap. 345. Law Reform Commission of Tanzania, 2025 upload. Accessed 7 Nov 2026.
• Employment and Labour Relations Act, Cap. 366 R.E. 2023. TanzLII, version at 31 December 2023. Accessed 7 Nov 2026.
• Labour Institutions Act, 2004. TanzLII, version at 19 June 2020. Accessed 7 Nov 2026.
• Non-Citizens (Employment Regulation) Act, Cap. 436. TanzLII, consolidation of 14 March 2025. Accessed 7 Nov 2026.
• Labour Laws (Amendments) Act, 2025. Special Gazette No. 4, 14 March 2025, via ecoi.net. Accessed 7 Nov 2026.
• Fair Competition Act, 2003. TanzLII, as enacted 2003. Accessed 7 Nov 2026.
• Personal Data Protection Act, 2022. Office of the Attorney General, GN 395B of 13 June 2023. Accessed 7 Nov 2026.
• Employment Act, No. 11 of 2005 (Zanzibar). Zanzibar Government Gazette via Gazettes.Africa, 7 October 2005. Accessed 7 Nov 2026.
• Services to investors. ZIPA eRegulations Zanzibar, 2026. Accessed 7 Nov 2026.
• Key changes to Tanzania's Employment and Labour Relations Act. Clyde & Co, 30 April 2025. Accessed 7 Nov 2026.
• Protection of trade secrets. FB Attorneys, 23 August 2026. Accessed 7 Nov 2026.
• Is the Zanzibar Contract Decree Cap 149 appropriate for this era. Journal of Law, Policy and Globalization, Vol. 41, 2015. Accessed 7 Nov 2026.

Figures to confirm before you act

• Any later revised edition of Cap. 345 and whether section 27 kept its number.
• The Zanzibar Contract Decree, Cap. 149, and its restraint of trade wording.
• The CMA referral windows under the Labour Institutions Act and current rules.
• The correct forum for a restraint claim against a former employee.
• Employer social security, levy and compensation fund rates added to salary costs.
• Court fees F0157, NEW-01-28 and NEW-01-38, and work permit fee F0415, on the day of payment.
• Whether Fair Competition Act sections 8 and 14 were renumbered by later amendments.

This article is general information based on official sources available at the date of publication. It is not legal, tax or financial advice. Laws and notices change. Verify with the issuing authority or consult Zatra before acting.