If you’re an executive, a large share of your wealth is probably tied to one company — your employer — through share options, restricted shares, and performance awards. That equity can build serious wealth. But it also concentrates your financial life in a single stock, and layers on tax rules that most general financial advice never touches.
The result is a planning problem with a particular shape: your human capital (your salary and career) and a big slice of your investment capital are both exposed to the same company’s fortunes. When the share price falls, both can suffer at once — exactly when you can least afford it.
This guide focuses on the heart of executive financial planning: understanding what you actually hold, how South Africa taxes share schemes under Section 8C, why concentration is the risk that matters most, and how to diversify out of it deliberately — alongside the wider plan that ties it all together.
- Key Definitions
- The Executive’s Real Problem: One Company, Twice Over
- Know What You Actually Hold
- How Share Schemes Are Taxed: Section 8C in Plain Terms
- The Concentration Trap
- A Sell-Down Strategy That Actually Works
- Beyond the Equity: The Rest of the Plan
- Frequently Asked Questions
- Turning Paper Wealth into Real Security
Key Definitions
Share option
A right to buy company shares at a set price (the strike price) at a future date. The value lies in the difference between the strike price and the market price when you exercise.
Restricted equity instrument
Shares or options awarded through employment that carry restrictions — typically a vesting period or performance conditions — before they’re fully yours. The Section 8C tax treatment hinges on this concept.
Vesting
The point at which restrictions fall away and the equity becomes unconditionally yours. In South Africa, this is usually when the tax is triggered — not when the award is granted.
Section 8C
The provision of the Income Tax Act that governs how employment-related share schemes are taxed — broadly, as income on vesting rather than as a capital gain.
Concentration risk
The risk of holding too much of your wealth in a single asset — here, your employer’s shares — so that one company’s fortunes drive your financial outcome.
Closed (prohibited) period
A window — often around results announcements — during which directors and senior staff may not trade in their company’s shares, and usually need pre-clearance to deal at all.
The Executive’s Real Problem: One Company, Twice Over
Most financial advice treats your job and your investments as separate things. For an executive, they often aren’t. Your salary, your bonus, and a large part of your accumulated wealth can all depend on the same company — which means a single corporate setback can hit your income and your investment portfolio at the same time.
That double exposure is the defining feature of executive financial planning, and it’s why the usual advice (“diversify, invest for the long term”) needs sharpening for your situation. The wealth that share schemes build is real, but until it’s diversified and the tax is dealt with, it’s concentrated, illiquid, and exposed in a way that deserves deliberate management rather than hope.
Know What You Actually Hold
“Share scheme” covers several quite different instruments, and the differences matter for both risk and tax. The first job is simply knowing which ones you hold and on what terms.
| Instrument | How it works | Key planning point |
|---|---|---|
| Share options | The right to buy shares at a set strike price after a vesting period | Value depends on the share price exceeding the strike; timing of exercise matters |
| Share appreciation rights (SARs) | A cash or share payment equal to the growth in the share price over a period | Often cash-settled — less concentration risk, but still taxed as income |
| Restricted / forfeitable shares | Actual shares awarded upfront but subject to forfeiture until conditions are met | You may hold (and vote/receive dividends on) shares you don’t yet fully own |
| Performance shares | Shares that vest only if company or personal targets are hit | Value is uncertain until performance conditions resolve |
| Phantom / cash-settled schemes | A cash bonus that tracks the share price, with no actual shares issued | No equity to diversify, but the payout is taxed as income |
If you’re not certain which of these you hold, or when each vests, that’s the starting point — the rest of the plan depends on it.
How Share Schemes Are Taxed: Section 8C in Plain Terms
This is where executive planning departs most sharply from ordinary investing, and where mistakes get expensive. In South Africa, employment-related share schemes are governed by Section 8C of the Income Tax Act, and the key principle catches many people out: the gain on your equity is taxed as income, not as a capital gain, and it’s triggered when the equity vests — not when it’s granted.
| Stage | What happens | Tax treatment |
|---|---|---|
| Grant / award | You’re awarded options or restricted shares | Generally no tax at this point |
| Vesting | Restrictions fall away; the equity becomes yours | Gain (market value at vesting, less anything you paid) taxed as income, at your marginal rate — up to 45% |
| After vesting | You continue to hold the shares | Now on capital account — further growth is subject to CGT when you sell (base cost = value at vesting) |
| Dividends on restricted shares | You receive dividends before vesting | May be taxed as income rather than enjoying the usual dividend treatment — check the scheme |
Two practical implications follow. First, because the vesting gain is taxed at up to 45% as income, the moment of vesting — not exercise or sale alone — is the key tax event to plan around. Second, once shares are vested and held on capital account, continuing to hold them is an active investment decision, with its own concentration risk, that should be judged on its merits rather than left on autopilot. If you work closely with a tax specialist, this is one area where coordinating your adviser and accountant genuinely pays off.
The Concentration Trap
Once your equity vests, the most important question is how much of your total wealth now sits in one company’s shares. A common rule of thumb is that when a single holding exceeds around 10% of your portfolio, your position has become concentrated and the risk rises sharply from there.
For executives, that risk is magnified by the double exposure we started with: your income and your investments lean on the same company. History is full of capable people whose paper fortunes evaporated because they held on to employer stock through a downturn — sometimes out of loyalty, sometimes optimism, sometimes simply inertia. The discomfort of selling shares in the company you help run is real, but concentration doesn’t care how you feel about the business.
The point isn’t that your company will fail. It’s that you don’t need to take that bet to reach your goals — and the downside if you’re wrong is severe.
A Sell-Down Strategy That Actually Works
The answer to concentration isn’t a single dramatic decision to sell everything. It’s a deliberate, repeatable strategy for trimming the position as equity vests and redeploying the proceeds into a diversified portfolio.
A few principles tend to make this work in practice:
- Diversify systematically, not emotionally. Decide in advance to sell a set portion of each tranche as it vests, rather than trying to time the share price. A rules-based schedule removes the agonising — and the regret.
- Plan around vesting, not just price. Because the income tax hits at vesting regardless of whether you sell, holding vested shares purely to avoid “realising” a gain often misunderstands the tax — you’ve usually already paid the income tax on the way in.
- Mind the closed periods. As a director or senior employee, you can typically only deal in open windows, often with pre-clearance, and never on inside information. A sell-down plan has to be built around these constraints, which is another reason to set it up in advance.
- Redeploy with intent. The proceeds should go into a genuinely diversified portfolio — different companies, sectors, asset classes, and currencies — so you’re not simply swapping one concentrated bet for another.
Done well, this turns volatile paper wealth into durable, diversified security, on a schedule you’ve decided in advance rather than under pressure.
Beyond the Equity: The Rest of the Plan
Share schemes are the centre of gravity, but a complete executive plan wraps several other pieces around them.
Financial independence and your exit. Handled well, equity wealth can bring forward the day work becomes optional. Cash-flow modelling turns a vague sense of “I should be fine” into a clear answer on when you could step back, change direction, or retire — and what has to happen first. It’s covered more fully in our retirement planning guide.
Risk cover. With so much riding on your earning power and your company, appropriate life, disability, and severe-illness cover matters more, not less — it backstops the shortfall if either your health or the share price turns.
Tax structure and estate planning. On the highest marginal rate, using tax-efficient structures well makes a real difference, and your estate plan needs to account for concentrated equity, vesting that may continue after death, and — where relevant — trust structures for intergenerational transfer.
Cross-border complexity. Executives at multinationals often hold equity listed offshore, or have worked across jurisdictions, which brings situs tax and residency questions into play. Our cross-border financial planning pillar covers that ground.
An investment approach suited to your position. One advantage of building real equity wealth is that you usually don’t need to chase aggressive returns. Preserving capital and diversifying into strategies with more balanced risk-and-reward profiles lets you build a portfolio that withstands shocks — which, given everything else riding on your company, is the more important objective.
Frequently Asked Questions
How are share options taxed in South Africa?
Under Section 8C of the Income Tax Act, gains on employment-related share options and shares are generally taxed as income — at your marginal rate, up to 45% — rather than as a capital gain. The tax is usually triggered when the equity vests (when restrictions fall away), not when it's granted. After vesting, further growth is subject to capital gains tax. Confirm the specifics against your scheme rules and current legislation.
When do I actually pay tax on my share scheme?
Generally at vesting, not at grant. When the restrictions on your options or shares fall away, the gain (market value at vesting, less anything you paid) is taxed as income. This is the key event to plan around, because the bill can be substantial and is due whether or not you sell.
How much of my wealth should be in my company's shares?
There's no fixed answer, but a common rule of thumb is that once a single holding exceeds around 10% of your portfolio, you're concentrated. For executives the concern is amplified because your income already depends on the same company — so the same downturn can hit your salary and your investments together.
Should I exercise and hold, or exercise and sell?
It depends on your overall position, but holding vested shares to "avoid tax" often misreads the rules — the income tax is typically triggered at vesting regardless. From there, holding is an active investment decision that adds to your concentration. Many executives are better served by a systematic sell-down into a diversified portfolio.
Can I sell my company shares whenever I want?
Usually not freely. As a director or senior employee, you can typically only trade in open windows outside closed (prohibited) periods, often with pre-clearance, and never on inside information. A sell-down strategy has to be designed around these rules, which is one reason to set it up well in advance.
Turning Paper Wealth into Real Security
Share schemes are one of the most effective wealth-building tools an executive has — and one of the most misunderstood. The wealth they create is real, but until it’s diversified and the tax is handled, it’s concentrated in a single company whose fortunes already drive your career. The work of executive financial planning is converting that volatile, exposed paper wealth into durable, diversified security, deliberately and tax-efficiently, on a plan you’ve set in advance.
None of it requires spectacular investment returns. It requires understanding exactly what you hold, planning around the Section 8C tax events, trimming concentration systematically rather than emotionally, and wrapping the rest of the plan — risk cover, estate, tax structure, and your eventual exit — around the equity at the centre.
That whole-picture coordination is precisely what a good financial plan is built to provide, and it’s the kind of work we do for professionals and executives every day.
If a meaningful slice of your wealth is tied up in share options or company stock, we’re happy to look at it with you — what you hold, the tax events ahead, and how to diversify out of the concentration on a plan that fits your goals. No obligation, and no product pitch.
This article is for informational purposes only and does not constitute financial, tax, or legal advice. Henceforward (Pty) Limited is an authorised representative of Graviton Wealth Management (FSP 8772). The tax treatment of share schemes depends on the specific scheme rules and your individual circumstances and is subject to change — references to Section 8C and related provisions are general and should be verified against current legislation and your scheme documents. Consult a qualified tax or financial advisor for advice specific to your situation.
Carl-Peter is a CERTIFIED FINANCIAL PLANNER and investment professional with over 20 years of global experience, much of it helping executives manage equity, share options, and concentrated wealth. He co-founded Henceforward with Steven Hall in 2021. Henceforward is a fee-only, flat-fee firm — no commissions, no product incentives.