Lesson 21 Teaching Pack: Case Law on Capital Gains Tax

(Zimbabwe focus with UK and South Africa comparators; prepared for instructor use; en‑US; date context: 2026‑03‑16)

Executive summary

This lesson equips learners to read, extract, and apply Capital Gains Tax (CGT) principles from Zimbabwean judgments, and to distinguish (with persuasive common‑law support) when a gain is capital vs revenue, when statutory withholding/clearance mechanics are triggered, and when courts will refuse relief due to illegality/tax‑evasion structuring. In Zimbabwe, Sabeta v Commissioner General Zimbabwe Revenue Authority (Harare High Court) is a core CGT administration case: the judgment frames ZIMRA as a creature of statute bound to assess and collect CGT in terms of the Act and not to add extra‑statutory conditions to performing statutory duties.

The lesson also uses property‑transaction disputes where parties attempted to understate consideration or use multiple agreements to reduce CGT and stamp duty. These cases show the judiciary’s intolerance for devices “made for the purpose of evading” stamp duty and related transfer taxes, and how illegality doctrines (ex turpi causa / in pari delicto) shape private-law remedies.

Because students often over‑generalize local doctrine, the lesson anchors Zimbabwe’s approach against two persuasive comparators:
- United Kingdom: statutory CGT under the Taxation of Chargeable Gains Act 1992 (TCGA 1992).
- South Africa: CGT primarily in the Eighth Schedule to the Income Tax Act 58 of 1962, linked by s 26A (SARS guidance).

For “capital vs revenue,” the lesson illustrates the common‑law “adventure in the nature of trade” concept via Wisdom v Chamberlain and the South African “crossing the Rubicon” language associated with Natal Estates (noting source‑access limits to the original 1975 report and relying on later SAFLII materials that describe/quote it).

Learning objectives and lesson structure

By the end of Lesson 21, participants should be able to:
1) Case‑read with purpose: extract (i) material facts, (ii) issue(s), (iii) holding/order, (iv) ratio and supporting reasoning, and (v) litigation posture (review/appeal/mandamus) from a Zimbabwean CGT-relevant judgment.
2) Apply statutory hooks to facts: map facts to Zimbabwe’s CGT statutory scheme including the charging framework and key withholding/clearance mechanisms (depositaries/agents/payee obligations, clearance certificates, and exemptions).
3) Evaluate enforceability where tax‑evasion structuring is alleged: identify “red flags” (understated price, parallel agreements, transfer-fee “side letters”) and predict enforceability and remedy outcomes using Sibanda and Chitsinde and the Stamp Duties Act s 44 principle quoted in those judgments.
4) Distinguish capital vs revenue: articulate the principal tests and indicators used in common‑law jurisdictions, and explain why that distinction matters even in a CGT system (e.g., where legislation excludes “gross income” from “gross capital amount”).
5) Handle exemptions and reliefs analytically: interpret exemptions as statutory exceptions, test eligibility, and explain how courts approach proof and documentation—especially where a clearance certificate or withholding certificate is implicated.

Suggested classroom timing (adjustable): 2.5–3 hours total. Use the script below as a minute‑by‑minute guide.

Detailed lesson script and lecture notes

Instructor setup and framing

Opening (0:00–0:10)
Today’s objective is not “memorize CGT rates.” It is: how courts reason about CGT disputes—especially where CGT intersects with conveyancing, withholding/clearance, and the capital/revenue boundary. Zimbabwe’s Capital Gains Tax Act (as consolidated on ZIMRA’s site) contains both the charging structure and a distinctive withholding architecture (depositaries, agents, payee obligations, and clearance certificates).

Explain the three “litigation shapes” students will see:
- Public-law style compulsion (mandamus / mandatory interdict): taxpayer or affected party seeks to compel an authority to do what statute requires. Sabeta is the anchor.
- Private-law disputes with revenues in the background: parties fight over transfer, price, or cancellation, while the court confronts illegal tax‑evasion structuring. Sibanda and Chitsinde illustrate.
- Classification disputes (capital vs revenue): often framed under income tax statutes, but essential because Zimbabwe’s CGT base references what is (or is not) “gross income.”

Core Zimbabwe statutory anchors to keep visible during case discussion

Mini-lecture (0:10–0:25)
Keep a one‑page statute map on screen/handout:
- Charging and computation: CGT is charged on defined capital gains; calculation references rates fixed in the Finance Act framework.
- Withholding architecture (selected highlights):
- CGT withholding tax is imposed by statute; depositaries may be required to withhold; agents must withhold in specified circumstances; payee must pay where neither withheld and no clearance certificate issued.
- A clearance certificate can be issued where the Commissioner is satisfied (among other things) that no CGT is likely payable or it will be less than the withholding, and that arrangements exist to pay any CGT due.
- Statutory exemptions for withholding include where the amount is exempt from CGT in terms of the Act and special rules for certain collective investment vehicles (as reflected in the consolidated text).

Also highlight the Act’s internal boundary between income tax and CGT: the definition of “gross capital amount” excludes amounts proved by the taxpayer to be “gross income,” showing why capital vs revenue remains foundational.

Zimbabwean case study one: Sabeta and administrative legality

Case method (0:25–1:05)
Reading goals: identify the remedy, the statutory duty, and the legality principle.

Facts (high-level): Mariane Sabeta v Commissioner General Zimbabwe Revenue Authority concerns an application to compel the revenue authority to assess capital gains tax and to accept/receive payment so that the transaction/transfer machinery could proceed. The judgment expressly situates ZIMRA under the Revenue Authority Act and characterizes its role as assessing, collecting, and enforcing payment of revenues, including CGT charged under the CGT Act.

Issues:
- Whether ZIMRA—being a statutory body—can effectively refuse or delay assessment/collection in a way that adds conditions not found in the statute.

Holding/principle for students:
- The judgment stresses that ZIMRA is “a creature of statute” required to act within its enabling statute; the “relevant statutes enjoin it to assess and collect the tax that is due,” and “on the face of it, it cannot set conditions for the performance of its statutory obligations.”
- The consolidated CGT Act text (as published by ZIMRA) itself flags Sabeta as authority for the proposition that ZIMRA is not permitted to refuse to assess and issue a CGT certificate once tax is paid.

Instructor explanation (how to teach the reasoning):
Emphasize the administrative-law logic:
1) Identify the statutory duty (assess/collect).
2) Ask: does the statute grant discretion to impose the additional condition?
3) If not, refusal is ultra vires (beyond power) and the remedy is often mandatory (mandamus/mandatory interdict).

Application exercise (5 minutes, paired):
Give a hypothetical: “ZIMRA says it will not issue the clearance certificate until the seller settles unrelated PAYE arrears.” Ask students to argue Sabeta-style: What statutory authority supports that refusal? What remedy is sought? (Prompt: “creature of statute / cannot set conditions.”)

Zimbabwean case study two: Sibanda and illegality in tax‑motivated conveyancing

Case method (1:05–1:40)
Now shift from public-law compulsion to private-law enforceability.

Key passage and doctrine: In Nomalanga Sibanda v Given Nyathi & Another & Others, the court confronts an agreement alleged to be structured “solely for the purpose of avoiding payment of the Capital Gains Tax and the Stamp Duty.” It states, in firm terms, that such an agreement is illegal and “null and void ab initio,” citing Stamp Duties Act [Chapter 23:09] s 44 (“Agreement to evade duty shall be void”).

Nuance worth teaching (don’t oversimplify):
The judgment distinguishes between:
- A genuine sale (real transfer of value/possession), and
- A false recital/understatement of consideration (the illegal element), noting that what is illegal may be the clause indicating a false consideration amount—this opens discussion about severability/partial illegality and remedy design in practice.

Illegality and remedies: The case quotes the broad illegality maxim: illegal agreements not yet performed will not be enforced (and references Dube v Khumalo as authority for the ex turpi causa rule in Zimbabwe law).

Instructor prompts:
- “What exactly is illegal: the sale itself, or the false price term?”
- “If the buyer paid full value and occupies the property, what remedies remain—restitution, enrichment, severing the illegal term, or none?” Use this to teach that tax‑evasion structuring creates litigation risk beyond the tax authority: it can destroy private enforcement and disrupt registration.

Zimbabwean case study three: Chitsinde and multiple agreements to reduce CGT

Case method (1:40–2:05)
Use Chitsinde and Another v Musa and Others as a clean “parallel agreements” illustration.

Core facts/principle from the judgment excerpts: The judgment records that both parties accepted the structure—three agreements for one sale—was designed “to evade the payment of proper dues” to ZIMRA for CGT and also reduce stamp duty by quoting a fictitious consideration. It then links the arrangement to the Stamp Duties Act’s anti‑evasion provision (s 44) and treats the transaction as “turpious.”

Teaching point: Students should learn to spot the “tell‑tale pattern” in conveyancing disputes:
- Multiple agreements signed same day, inconsistent prices, “side letters,” transfer fees packaged as “ZIMRA charges,” and seller/buyer each later weaponizing illegality. Courts treat these as red flags, and illegality can swallow both contractual and equitable claims.

Principles derived from Zimbabwean CGT‑relevant cases

Synthesis lecture (2:05–2:30)
Frame the “rules” as exam‑ready propositions.

Statutory administration and taxpayer rights (Sabeta line):
- When the statute imposes a duty to assess/collect CGT, the authority’s discretion is bounded; extra‑statutory conditions are vulnerable to review/mandamus framing.

Disposal/transfer timing and ownership (property law intersection):
- Zimbabwean CGT disputes in conveyancing often force courts to address passing of ownership/title, proof of title, and registration mechanics, because CGT clearance/certificates can be a gating item for transfer. Sabeta is explicitly categorized around passing of title/ownership and proof of title in immovable property contexts.

Market value substitution and “connected persons” (doctrinal note):
- The consolidated Zimbabwe CGT Act emphasizes design features (withholding, clearance, exemptions, and definitions that police base erosion). Even where Zimbabwean judgments on “connected persons” and market‑value substitution are limited in open repositories, you should teach these as statutory anti‑avoidance levers whose litigation usually turns on (i) valuation evidence and (ii) characterization of relationship/control. Use the statutory map (withholding + clearance) to show where such disputes arise.

Illegality in tax‑evasion structuring (Sibanda/Chitsinde line):
- Courts are prepared to treat agreements aimed at defeating stamp duty requirements as void under the Stamp Duties Act s 44, and to refuse enforcement under illegality maxims.

Comparative lens for capital vs revenue and exemptions

Zimbabwean CGT case law coverage (publicly accessible) is uneven; therefore, use persuasive authority carefully.

United Kingdom (persuasive): statutory CGT and “trade vs capital” reasoning
- UK statutory CGT is consolidated in TCGA 1992 (primary legislation).
- For capital vs revenue reasoning, Wisdom v Chamberlain is a standard “adventure in the nature of trade” illustration: the ATO’s legal database summary identifies it as a Court of Appeal decision and outlines the “purchase of bullion for profit/hedge” facts and issue framing.

South Africa (persuasive): CGT and the “crossing the Rubicon” language
- SARS states that CGT legislation is “primarily contained in the Eighth Schedule” to the Income Tax Act 58 of 1962, linked by s 26A—useful for students to see how CGT is embedded into an income tax statute.
- South African appellate decisions discuss the conceptual boundary between realizing an investment and conducting a profit‑making scheme, often using the “crossed the Rubicon” phrase associated with Natal Estates; later SAFLII cases reference and summarize that history (note: in this teaching pack we rely on these later public sources rather than the original 1975 report text, which was not available in the sources retrieved).
- For an employee share trust example, Commissioner for Inland Revenue v Pick ’n Pay Employee Share Purchase Trust is available on SAFLII (ZASCA 1992/84). It is useful to compare with Zimbabwe’s employee‑share/marketable‑securities themes even when local judgment texts are harder to obtain.

Zimbabwean CGT-related cases and comparative tables

Zimbabwe case table for classroom use

Use this as your “board table” while teaching; assign each row to a student group for a two‑minute oral brief.

Table comparing judicial approaches on capital vs revenue and exemptions

This table is designed to help you “teach the method” rather than just local rules.

Court reasoning flowchart and case brief template

Mermaid flowchart: how courts analyze capital vs revenue and exemption claims

flowchart TD
  A[Start: Tax consequence disputed] --> B{What is the tax hook?}
  B -->|CGT charging/withholding/clearance duty| C[Identify exact statutory provision(s)]
  B -->|Income tax / gross income classification affects CGT base| D[Characterize receipt: capital vs revenue]

  C --> C1{Is the authority's duty clear?}
  C1 -->|Yes (statute mandates assess/collect/issue once conditions met)| C2[Administrative legality check: ultra vires if extra conditions]
  C2 --> C3[Select remedy: mandamus / mandatory interdict / review]
  C1 -->|No (discretion exists)| C4[Assess whether discretion exercised lawfully, rationally, procedurally]

  D --> D1[Apply indicators: intention, frequency, organization, financing, holding period, connection to business]
  D1 --> D2{Looks like trade/profit-making scheme?}
  D2 -->|Yes| D3[Revenue: taxable as income; CGT may be excluded where statute treats as gross income]
  D2 -->|No| D4[Capital: proceed to CGT computation & timing rules]

  D4 --> E{Is an exemption/relief claimed?}
  D3 --> E
  E -->|Yes| E1[Identify exemption text + conditions + burden of proof]
  E1 --> E2{Evidence satisfies statutory tests?}
  E2 -->|Yes| E3[Apply exemption/relief; confirm withholding/clearance consequences]
  E2 -->|No| E4[Deny exemption; compute liability + penalties/interest if applicable]
  E -->|No| F[Compute liability under statute]

  C --> G{Is transaction tainted by illegality/tax evasion structuring?}
  G -->|Yes| G1[Apply illegality doctrines; assess enforceability & remedies]
  G -->|No| F

  F --> H[Outcome: assessment/collection/clearance or court order]

One‑page case brief template for students

Case name & citation:
Court / judge(s) / date:
Procedural posture: (e.g., trial; urgent application; review; appeal; mandamus)
Key statutory provisions: (quote section numbers only; keep text separate)
Facts (≤120 words):
Issues (as questions):
Holding / order (1–3 sentences):
Reasoning (structured):
- Rule(s):
- Application to facts:
- Policy/values (if any):
Ratio decidendi (1–2 sentences):
Important dicta (optional):
Implications for practice: (clearance/withholding steps; drafting; evidence; risk controls)
My critique / questions: