UK SEIS & EIS specialists

SEIS & EIS Tax Relief Calculator

See the numbers instantly.

Strengthen your fundraising story with clear, credible numbers. Use our SEIS & EIS calculator to estimate potential tax relief and investor returns. When you're ready, speak to our team about applying for Advance Assurance with Vestd.

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InVestd (1)

Investment amount

£

Scheme

Investor income tax rate

Capital gains tax rate

Custom rate:

%

Focus exit multiple

0x 20x

Day-one tax position

Amount invested

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Income tax relief

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Net cost to investor

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Max loss (after loss relief)

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Scenario visualisation

Exit scenario comparison

Gross return vs net investor gain across exit multiples, after all tax reliefs applied

Gross return (pre-tax)

Net gain (post all reliefs)

Amount invested

Full scenario breakdown

Exit	Gross return	Income tax relief	Net gain / loss	ROI on net cost	CGT saved / loss relief

This calculator provides estimates for illustrative purposes only and does not constitute financial or tax advice. Tax treatment depends on individual circumstances and legislation which may change. SEIS and EIS investments are high risk - capital is at risk and you may not get back the amount invested. Always seek independent advice from a qualified financial adviser before making investment decisions. SEIS/EIS eligibility is subject to HMRC rules and advance assurance.

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Avoid costly delays

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Prepare applications, manage HMRC correspondence and keep fundraising conversations moving.

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PROCESS

Your funding journey, in one place.

Everything you need before, during and after your raise.

1

Step 1

Prepare

Clean your cap table, update company records and organise investor documents before you raise.

2

Step 2

Apply

Apply for advance assurance end-to-end guidance and full management of all HMRC correspondence.

3

Step 3

Raise

Create an investor-ready pitch deck and showcase your opportunity with a dedicated data room.

4

Step 4

Complete

Model ownership changes, issue shares and manage stakeholders after investment.

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FAQs

What trades are excluded from SEIS/EIS?

Excluded trades:

Coal or steel production
Farming or market gardening
Leasing activities
Legal or financial services
Property development
Running a hotel
Running a nursing home
Generation of energy
Production of gas or other fuel
Exporting electricity
Banking, insurance, debt or financing services
Dealing in land or commodities

However, if less than 20% of your overall business activities fall under one of these brackets, your company may still be eligible for SEIS. Learn more.

What's the risk-to-capital condition?

The risk-to-capital condition is an HMRC test designed to check if a business is genuinely using SEIS/EIS funding to grow. To qualify, businesses must:

Demonstrate clear growth potential
Prove to be a genuine risk to investors

This is to make sure that the investment is for genuine commercial purposes and not an attempt at tax avoidance.

Can I use both SEIS and EIS in the same round?

If you fit the criteria for both, there's no reason why you can't go for SEIS funding first and then EIS funding later down the line. But if you do plan to use both, SEIS has to come first. You can't issue EIS shares and then issue SEIS shares after.

Using them both for the same investment round (also known as a dual round) requires careful considerations, Read more here.

How much money can a single investor invest in EIS?

They can invest up to £1 million per tax year (this increases to £2 million if at least £1 million is invested in KICs), and claim up to 30% of this back through Income Tax relief. Learn more.

Can I issue Growth Shares as well as EIS?

Growth shares are perfectly fine to be issued alongside ordinary shares issued for EIS, but they can affect EIS eligibility if the waterfall isn’t structured properly. Customers who adopt the Vestd Articles of Association need not worry. Learn more.

Can S/EIS tax relief be revoked?

Even if a business initially qualifies, SEIS tax relief can be revoked within three years of issuing shares if disqualifying circumstances arise. Read these possible scenarios.

What's different for Knowledge Intensive Companies (KICs)?

Under EIS, KICs have a higher funding limit and company age limit:

Up to £20m each year (max total of £40m).
Trading for less than 10 years (or less than 10 years since annual turnover exceeded £200,000).

Want to streamline your application?

Book a free consultation to chat through your growth plans, or check your S/EIS eligibility with our quiz.

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Check EIS eligibility

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