Tax
Employee Share Schemes Guide UK — SIP, SAYE, EMI & CSOP Explained
How UK employee share schemes work, including SIP, SAYE, EMI, and CSOP — tax advantages, eligibility, how they compare, and whether to participate.
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5 min read
Employee share schemes give you a stake in the company you work for — often with significant tax breaks. Here’s how the main UK schemes work.
The Four HMRC-Approved Schemes at a Glance
| Scheme |
Type |
Tax advantage |
Annual/total limit |
Best for |
| SIP (Share Incentive Plan) |
Buy/receive shares |
No income tax or NI if held 5+ years |
£1,800/year (partnership) + £3,600 (free/matching) |
Large employers, all employees |
| SAYE (Save As You Earn / Sharesave) |
Save and buy at discount |
No income tax or NI on discount/gain |
Save £5–£500/month |
Large employers, all employees |
| EMI (Enterprise Management Incentive) |
Share options |
No income tax, CGT only (potentially 10%) |
Options over £250,000 of shares |
Small companies (under 250 employees) |
| CSOP (Company Share Option Plan) |
Share options |
No income tax on gain up to exercise price |
Options over £60,000 of shares |
Any size company |
SIP (Share Incentive Plan)
| Feature |
Detail |
| Who can participate |
All UK employees (company must offer to all, with some conditions) |
| Free shares |
Company gives you up to £3,600/year of shares for free |
| Partnership shares |
You buy up to £1,800/year from pre-tax salary |
| Matching shares |
Company matches partnership shares up to 2:1 |
| Dividend shares |
Reinvest dividends in more shares (up to £1,800/year) |
| Tax treatment (held 5+ years) |
No income tax, no NI on value of shares |
| Tax treatment (held 3–5 years) |
Income tax and NI on initial value only |
| Tax treatment (held under 3 years) |
Income tax and NI on market value at withdrawal |
| CGT |
Only on gains above annual exempt amount when you sell |
SIP — Example
| Year 1 |
Amount |
| Free shares (from employer) |
£3,600 |
| Partnership shares (you buy, pre-tax) |
£1,800 |
| Matching shares (2:1 match) |
£3,600 |
| Total shares received |
£9,000 |
| Tax if held 5+ years |
£0 (income tax and NI) |
SAYE (Save As You Earn / Sharesave)
| Feature |
Detail |
| How it works |
Save £5–£500/month for 3 or 5 years |
| Exercise price |
Fixed at start — usually a 20% discount to market price |
| At maturity |
Choose to buy shares at the discounted price OR take cash savings back |
| Income tax on discount/gain |
None |
| NI on discount/gain |
None |
| CGT when you sell |
Normal CGT rules — 18% (basic rate) or 24% (higher rate), minus annual exempt amount |
| If share price falls below option price |
Just take your cash back — no obligation to buy |
SAYE — Example
| Feature |
Amount |
| Monthly saving |
£200 |
| Period |
3 years |
| Total saved |
£7,200 |
| Share price at start |
£10 |
| Exercise price (20% discount) |
£8 |
| Share price at maturity |
£14 |
| Shares you can buy |
7,200 ÷ 8 = 900 shares |
| Market value of shares |
900 × £14 = £12,600 |
| Profit |
£12,600 − £7,200 = £5,400 |
| Income tax + NI |
£0 |
| CGT (if you sell immediately) |
On £5,400 gain minus £3,000 annual exempt amount = £2,400 taxable |
EMI (Enterprise Management Incentive)
| Feature |
Detail |
| Who can participate |
Employees of qualifying small companies |
| Company requirements |
Gross assets under £30 million, fewer than 250 employees, trading company |
| Employee requirements |
Work at least 25 hours/week (or 75% of working time) for the company |
| Option limit |
Up to £250,000 per employee |
| Company limit |
£3 million total EMI options outstanding |
| Exercise price |
Usually set at market value (agreed with HMRC) |
| Income tax on exercise |
None (if option price = market value at grant) |
| NI on exercise |
None |
| CGT on sale |
Yes — but 10% with BADR (Business Asset Disposal Relief, up to £1 million lifetime) |
| Holding period |
Options must be exercised within 10 years |
EMI — Example
| Feature |
Amount |
| Option grant |
10,000 shares at £2 each |
| Total option value |
£20,000 |
| Share price at exercise (3 years later) |
£10 |
| Value of shares at exercise |
£100,000 |
| Income tax + NI at exercise |
£0 |
| You sell for |
£100,000 |
| Gain |
£100,000 − £20,000 = £80,000 |
| CGT at 10% (with BADR) |
£8,000 |
Without EMI, the £80,000 gain would be taxed as employment income at up to 45% + NI = potentially £40,000+ tax.
CSOP (Company Share Option Plan)
| Feature |
Detail |
| Who can participate |
Selected employees (doesn’t have to be offered to all) |
| Company requirements |
Any UK company (no size limit) |
| Option limit |
Up to £60,000 per employee (increased from £30,000 in 2023) |
| Exercise price |
At least market value at grant |
| Holding period |
Must hold options for at least 3 years before exercising |
| Income tax on exercise (after 3 years) |
None on the gain |
| NI on exercise |
None |
| CGT on sale |
Normal CGT rates on gain above exercise price |
Comparing the Schemes
| Feature |
SIP |
SAYE |
EMI |
CSOP |
| Tax-free income tax? |
Yes (5yr+) |
Yes |
Yes |
Yes (3yr+) |
| NI saving |
Yes (5yr+) |
Yes |
Yes |
Yes (3yr+) |
| CGT applies on sale |
Yes |
Yes |
Yes (10% with BADR) |
Yes |
| Must offer to all? |
Yes |
Yes |
No |
No |
| Company size limit |
None |
None |
Under 250 employees |
None |
| Max benefit per year |
~£9,000 |
~£6,000 |
£250,000 (total) |
£60,000 (total) |
Tax Summary
| Event |
SIP (5yr+) |
SAYE |
EMI |
CSOP (3yr+) |
| Acquiring shares |
No IT, no NI |
No IT, no NI |
No IT, no NI |
No IT, no NI |
| Selling shares |
CGT on growth since acquisition |
CGT on growth since option price |
CGT at 10% (BADR) |
CGT on growth since exercise price |
Should You Participate?
| Consideration |
Detail |
| It’s almost always worth it for SAYE |
Worst case: you get your savings back. Best case: significant tax-free gain |
| Free shares (SIP) |
Always accept free shares — it’s free money |
| Partnership shares (SIP) |
Good deal if you can afford to lock up the money for 5 years |
| EMI |
Extremely tax-efficient — participate if you believe in the company’s growth |
| Concentration risk |
Don’t put all your savings in your employer’s shares — if the company struggles, you could lose your job AND your investments |
| Diversify |
Consider selling shares after any holding periods and reinvesting in a diversified portfolio |
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