(Seed) Enterprise Investment Scheme
SEIS/EIS tax relief calculator
Investors in qualifying startups can claim huge tax benefits with SEIS and EIS. Are you a founder looking to make a compelling case to investors? Or an investor exploring tax-saving opportunities? Just enter the investment amount, forecast the return and see how SEIS/EIS could maximise potential gains.
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Founders, SEIS/EIS approval makes you more investable
Show potential investors your startup qualifies for that all-important SEIS/EIS tax relief by locking in Advance Assurance. Work with SeedLegals SEIS/EIS experts to get approved fast.
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SEIS/EIS tax relief and loss relief
Investors, limit your risk and boost your gains
SEIS/EIS tax relief offers investors up to 50% back on their investment, plus loss relief if things don’t work out. With SeedLegals, it’s quick and easy to get the forms you need to submit a claim.
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More resources on SEIS/EIS

Startup guide
SEIS: Guide for founders
The ultimate guide to the early-stage startup’s secret weapon: SEIS status. Discover the eligibility criteria and a guide to all the benefits and rules.
What else do I need to know about SEIS/EIS?
What are SEIS and EIS?
The Enterprise Investment Scheme (EIS) and the Seed Enterprise Investment Scheme (SEIS) are UK government initiatives which grant private investors a significant tax break when investing in early-stage, ‘high-risk’ companies.What’s the difference between SEIS and EIS?
The Seed Enterprise Investment Scheme is for investments in early-stage companies.
The Enterprise Investment Scheme is for investments in medium-sized startups.
With both schemes, investors can invest in qualifying companies in return for Income Tax relief. For SEIS, they can invest up to £200,000 per tax year for 50% tax relief.
For EIS, it’s up to £1 million per tax year for 30% tax relief.
For both SEIS and EIS, investors pay no Capital Gains Tax on any profit they make from selling their shares, as long as they’ve held the shares for at least three years.What tax relief can investors claim under SEIS and EIS?
Income Tax relief
Under SEIS, investors get back 50% of the amount they invested as a reduction in your Income Tax bill. Under EIS, investors get 30% of the amount they invested as a reduction in your Income Tax bill.
Capital Gains disposal relief
Normally when investors sell their shares, they pay Capital Gains Tax on the profit they make. But with SEIS and EIS, they get to keep it all.
Loss relief
If they haven’t made a profit when they sell their shares, they can set that loss against their Income Tax bill.
For more detail, read our guides on SEIS tax relief for investors and EIS tax relief for investorsHow do investors claim SEIS/EIS tax relief?
First, investors need to make sure that the company they’re investing into and their investment is eligible for SEIS and EIS. We list the scheme rules in SEIS rules and benefits and EIS rules and benefits.
Companies can get pre-approval from HMRC that they meet the criteria through SEIS/EIS Advance Assurance.
After the investment has been made, companies need to complete the SEIS/EIS compliance process, so that they can give their investors the documentation they need to complete their tax returns and claim their tax relief.
Our SEIS/EIS specialists are here to help make the process of claiming SEIS/EIS easier. Speak to a member of the team to get started.