SEIS vs EIS – Understanding the Difference Between SEIS and EIS

SEIS vs EIS: What Is the Difference?

The Seed Enterprise Investment Scheme (SEIS) and Enterprise Investment Scheme (EIS) are both government-backed initiatives designed to encourage investment into qualifying businesses through a range of tax reliefs for investors.

Although the schemes share similar objectives, they are designed for businesses at different stages of growth and have different eligibility criteria, investment limits and tax considerations.

Understanding the difference between SEIS and EIS is important for both businesses seeking investment and investors looking to maximise available tax relief opportunities.

A common question we receive is whether businesses should use SEIS or EIS, which is better, and whether companies can raise SEIS and EIS funding together. The answer often depends on the company’s stage of development, funding requirements and future growth plans.

What Is SEIS?

SEIS is designed to help very early-stage businesses raise investment. It supports smaller companies in securing initial funding by offering attractive tax reliefs to investors willing to invest in higher-risk start-up businesses.

The scheme is typically used by businesses during the early stages of development when funding is required to establish operations, develop products or accelerate initial growth.

As a result of the additional investment risk associated with earlier-stage companies, SEIS generally offers higher levels of tax relief for investors.

What Is EIS?

EIS is aimed at growing businesses that have progressed beyond the earliest start-up stage and require larger investment opportunities.

The scheme enables qualifying businesses to continue raising funds as they expand while still offering significant tax incentives to investors.

Many companies initially raise investment through SEIS before later progressing to EIS as the business develops and funding requirements increase.

SEIS vs EIS Limits Comparison

One of the main differences between SEIS and EIS involves the amount of funding available under each scheme and the conditions attached to it.

SEIS is intended for smaller, earlier-stage funding rounds, whereas EIS allows businesses to raise significantly larger amounts of investment as they scale.

Businesses often begin by assessing available SEIS funding limits before moving into EIS funding rounds at a later stage.

While the schemes are connected, careful planning is important to ensure the correct structure is used and that qualifying conditions continue to be met throughout the process.

Can You Raise SEIS and EIS Together?

A common question for growing businesses is: can you raise SEIS and EIS together?

The short answer is yes, businesses can potentially access both schemes, but there are important rules governing how they operate together.

Companies frequently raise SEIS funding initially and then move on to EIS funding once the SEIS investment has been used for qualifying business activities. This is often referred to as "SEIS then EIS" funding.

Although the schemes can work alongside one another, businesses must ensure that all relevant conditions are met and that investment is structured correctly.

In practice, the order and timing of investment rounds can be important. Poor planning may create issues that affect qualification for one or both schemes.

For that reason, many businesses seek specialist advice before arranging investment rounds.

Can You Manage SEIS and EIS funding at the Same Time?

Businesses often ask whether SEIS and EIS can be raised at the same time.

While it may be possible for funding rounds to involve both schemes, eligibility rules and practical considerations mean that each situation should be reviewed carefully.

Companies need to consider factors such as:

• Funding structure
• Share issue arrangements
• Use of investment proceeds
• Qualifying activities
• Timing of investment rounds
• HMRC requirements

Obtaining advice early in the process can help businesses avoid complications and ensure future fundraising plans remain protected.

How Long Do Investors Need to Hold SEIS and EIS Shares?

Another important consideration for investors is the required share-holding period.

For investors to retain the full tax benefits available under SEIS and EIS, shares generally need to be held for a minimum qualifying period of three years.

Selling or disposing of shares too early may affect eligibility for relief and could result in tax benefits being withdrawn.

This requirement exists because both schemes are intended to encourage long-term investment into growing businesses rather than short-term investment activity.

Investors should understand these conditions before proceeding with any investment and seek professional advice where appropriate.

SEIS or EIS – Which Is Better?

There is no universal answer to whether SEIS or EIS is better, as the most suitable option depends on the circumstances of the business and the objectives of the investor. SEIS offers a 50% income tax credit whereas EIS offers a 30% income tax credit. SEIS also reduces the capital gains tax on any gains reinvested in SEIS, whereas EIS only defers the capital gains tax. So it is always worth claiming SEIS if your company is still within the three years of trading deadline and has not yet raised the £250,000 limit.

For earlier-stage businesses requiring initial funding, SEIS may provide an effective route to attract investors. For businesses seeking larger funding rounds to support expansion, EIS may be more appropriate.

In many cases, the most effective approach is not choosing one scheme instead of the other, but understanding how both can work together as part of a longer-term funding strategy.

Specialist Advice for SEIS and EIS Funding

SEIS and EIS rules can be complex, and businesses should carefully consider funding structures before proceeding with investment activity.

At Key Business Consultants, we provide specialist guidance on SEIS and EIS planning, helping businesses and investors understand eligibility requirements, investment structures and ongoing compliance obligations.

Whether you are considering SEIS funding, EIS funding or planning a transition from SEIS to EIS, our team can provide practical advice tailored to your circumstances.