For investors

What is SEIS?

The Seed Enterprise Investment Scheme – a UK government initiative

SEIS - an overview

SEIS stands for “Seed Enterprise Investment Scheme” and is the UK Government’s scheme to incentivise private investors to invest in startups by giving tax relief on the investments – which are a high risk and illiquid investment.
Since 2013/14, about £150million every year has been invested in startups through the SEIS scheme.
The incentives includes tax benefits such as
  • Income tax relief of 50%
  • Capital gains tax exemption
  • Loss relief on investments that fail
  • Reinvestment relief
  • Inheritance tax relief

SEIS and its tax benefits are for investments of up to £200,000 per annum.

Investors may apply the income tax relief to the tax year of their investment or carry it back to the previous year.

So for SEIS Fund VIII, investors can decide whether to claim relief on this tax year (2025/2026) or last year, 2024/2025.

 

Risk warning: Tax relief depends on an individual’s circumstances and may change in the future. The availability of tax relief depends on the company maintaining its qualifying status.

Learn more with Syndicate Room

Syndicate Room is our partner for SEIS Fund VII and VIII. They are a fund manager that has been investing in ambitious startups since 2013.

On their website, they share a great explainer on SEIS, its rules, worked examples, and how to claim it.

Join our next webinar on SEIS

Join our webinar for investors exploring our Fund. We’ll discuss dealflow, our climate impact ambition, and introduce SEIS and its tax benefits.

When: 24th June, 17:00 BST

FUND VIII text

Learn more by joining our investor community

Carbon13 has invested £9million into 64 startups through our seven SEIS funds, since 2021. Explore our portfolio here.

We have several upcoming events open only to qualified investors, including demo days and webinars on our SEIS funds.

Our investor community also receives an exclusive monthly newsletter with updates on our portfolio and access to our latest investments.

If you’d like to become part of our investor community, you’re welcome reach out to Min Dhillon, Principal at Carbon13.

“The forward thinking and commercial approach of climate-driven investors is the engine which drives our ventures.”

Min Dhillon

Principal, Carbon13