Matching Shares Calculator
Your employer is giving you free shares for every share you buy. Find out exactly how much those Matching Shares are worth — before tax, after tax, and five years from now.
Work Out Your Matching Shares Value
Enter what you put into Partnership Shares and your employer’s match ratio. We’ll show the free shares you receive and what they’re really worth after tax relief.
How Much Are Matching Shares Really Worth?
Matching Shares are the part of a UK Share Incentive Plan (SIP) most employees underrate. When you buy Partnership Shares out of your salary, your employer can add free Matching Shares on top, at a ratio set by the scheme rules, up to a maximum of two free shares for every one you purchase. The calculator above turns that ratio into a cash figure: what the free shares are worth today, what your contribution actually cost you once tax and National Insurance relief are factored in, and what the combined holding could be worth in five years if the shares grow in line with the company’s performance.
The number that catches most people off guard is the return on cash outlay, not the headline match ratio. A 2:1 match sounds like triple value, and on paper it is, but the real story is sharper once you account for salary sacrifice. Because Partnership Shares come out of gross pay before Income Tax and NI, a higher-rate taxpayer’s £1,800 contribution costs roughly £936 in real take-home terms. Add a 2:1 match worth £3,600, and that employee is sitting on £5,400 of shares for under £1,000 of actual spending power given up — before the share price has moved at all.
A Worked Example
Higher-rate taxpayer, 2:1 match, £1,800/year
Basic-rate taxpayer, 1:1 match, £900/year
Matching Shares vs the Other SIP Components
A SIP has up to four moving parts, and Matching Shares are easiest to understand next to the other three. The table below shows where they sit.
| Component | Who pays? | Annual limit | Tax-free after |
|---|---|---|---|
| Free Shares | Employer (no cost to you) | £3,600 | 5 years |
| Matching Shares | Employer (tied to your purchase) | Up to 2× Partnership | 5 years |
| Partnership Shares | You (pre-tax salary) | £1,800 | 5 years |
| Dividend Shares | Reinvested dividends | No fixed cap | 3 years |
Free Shares need no action from you beyond being employed. Matching Shares need you to buy Partnership Shares first, since the match is awarded against your contribution, not given outright. That’s the detail people miss: skip Partnership Shares and you forfeit the matching entitlement entirely, even though it costs your employer nothing extra to offer it.
Frequently Asked Questions
What are matching shares worth?
Matching shares are worth your match ratio multiplied by your Partnership Share contribution. At 2:1, a £900 contribution brings £1,800 of free shares on top of what you already bought — £2,700 of total holding for £900 of gross spend, before tax relief is even counted.
Are matching shares taxed?
Not while they remain in the SIP trust for five years. Removed between three and five years, tax is charged on whichever is lower: the value at award or the value at removal. Removed within three years, tax applies to the full value at the time of removal.
What’s a typical matching shares ratio?
1:1 and 2:1 are the most common in the UK. HMRC caps the ratio at 2 Matching Shares for every 1 Partnership Share, so the maximum uplift is tripling your contribution in free stock.
Do I lose matching shares if I leave my job?
You generally keep the shares, but early removal before the qualifying period can trigger Income Tax and NI. “Good leaver” reasons — redundancy, retirement, ill health, or death — waive that tax regardless of how long the shares were held.
Can I sell matching shares whenever I want?
Yes, but selling early means giving up some or all of the tax relief. Most employees treat the five-year mark as the point worth planning around, since everything that happened inside the trust up to that point comes out tax-free.
Explore the Full SIP Calculator Suite
Matching Shares are just one part of your plan. See how they combine with the other three components below.
Disclaimer: This calculator and article are for general guidance only and do not constitute financial or tax advice. Figures are illustrative estimates based on standard HMRC Schedule 2 SIP rules current as of 2026. Tax treatment depends on your individual circumstances and your specific plan’s rules. Always confirm with your plan provider or a qualified financial adviser before making decisions.