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.

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