SEIS & EIS for founders

SEIS and EIS, from advance assurance to the certificates in your investors’ hands.

Getting the assurance before you pitch, issuing the shares in the right order, filing the compliance statement, and putting the certificate your investors need in front of them. Fixed fee, agreed before we start.

The short answer
We handle SEIS and EIS end to end for UK startups: checking the company and the share issue qualify, applying for advance assurance before you pitch, sequencing the share issue so SEIS shares are not accidentally invalidated, filing the compliance statement after the round, and issuing each investor the certificate they need in order to claim their relief.

For an early-stage UK company raising from individuals, SEIS and EIS are not a nice-to-have on top of the pitch. They are frequently the reason the cheque exists at all. An angel putting in £50,000 under SEIS gets 50% income tax relief, and downside protection on top of that. Take the relief away and the same person is being asked to make a very different bet.

Founders reliably underestimate two things. The first is how much of the work happens before the round: HMRC will not entertain a speculative application, so you need named prospective investors and a share structure that already works. The second is how much happens after it, when the money is in and attention has moved on — and your investors are waiting on a certificate they cannot claim without.

And the errors here are unusually unforgiving. Most tax mistakes cost money. A share issue done in the wrong order costs your earliest backers a relief you promised them, and there is no amending it later.

The limits

What your company has to look like

SEIS

£250,000 over the company’s lifetime. Gross assets no more than £350,000 when the shares are issued. Fewer than 25 full-time equivalent employees. A qualifying trade carried on for no more than 3 years. Investors get 50% income tax relief.

EIS — doubled on 6 April 2026

£10m in any 12 months and £24m over the company’s lifetime, both twice what they were. Gross assets no more than £30m before the issue and £35m after. Fewer than 250 employees, within 7 years of first commercial sale. Investors get 30% relief.

⚠️ Northern Ireland is different

A Northern Ireland company trading in goods or wholesale electricity is a specified company and gets none of the April 2026 uplift: still £5m a year, £12m lifetime, gross assets £15m before and £16m after. If you manufacture in Northern Ireland, plan against these.

Sources: HMRC SEIS guidance and HMRC EIS guidance. Knowledge-intensive companies have higher limits again.

How a round actually runs

Four stages, and three of them are before the money

  1. 1
    Get the company into shape

    Share structure, share classes, the trade itself and the assets test, all checked against the conditions before anything is submitted. This is also where we catch the things that quietly disqualify a company — an excluded activity that has become a substantial part of the trade, or arrangements that look pre-planned to HMRC.

  2. 2
    Advance assurance, before you pitch

    HMRC will not deal with a speculative application, so it needs serious expectations that named individuals will invest. We apply and manage the correspondence (HMRC advance assurance). Provisional 2025-26 figures show 76% of SEIS and 72% of EIS applications approved — both down on the year before, so the assumption that it is a formality no longer holds.

  3. 3
    Issue the shares, in the right order

    SEIS shares first, EIS shares afterwards — never the same day. Fully paid up, ordinary, no preferential rights. This is the stage where an otherwise perfect round is quietly ruined, and it is ruined by a date on a board minute.

  4. 4
    Compliance statement, then the certificates

    After the round we file the compliance statement, and once HMRC authorises it we issue each investor the certificate they need to claim. Your investors have been waiting for this since the day they wired the money.

What it costs

Priced per stage, agreed before we start

Advance assurance

£499 + VAT. Eligibility check, the HMRC-ready version of your plan and forecast, the application submitted as your agent, and the correspondence chased until the letter lands.

Compliance and certificates

£599 + VAT. After the round: the SEIS1 or EIS1 compliance statement to HMRC, and an SEIS3 or EIS3 certificate issued to every investor so they can actually claim.

The engagement letter

Included. HMRC wants to know who your investors will be. The engagement letter answers that question properly, so you can apply before every cheque is committed.

The same prices are published on Find Investment, where founders can order this work directly.

Where the investors come from

Being findable is half the job

Advance assurance answers the question an investor asks second. The first one is how they hear about you at all, and for most founders the honest answer is a lot of cold email to people with no reason to reply.

Find Investment inverts that. Founders list a business with a plan, a deck and a short video; certified investors browse and make the first move. It is operated by Founder Capital LLP, and its investor side is restricted to people who have self-certified — which is precisely why the SEIS and EIS position needs to be straight before you are listed rather than after somebody asks.

The condition that fails most applications

Risk to capital

HMRC applies a two-limbed test, and it is where most refusals land. First, the company must have objectives to grow and develop its trade over the long term. Second, there must be a significant risk of loss of capital to the investor greater than the net return — and the net return includes the tax relief itself.

What that rules out, in practice, is anything shaped like a structured product wearing a startup’s clothes: asset backing that makes the downside look covered, secured or contracted income, a pre-determined exit, or a company that exists to run one project and then stop. None of those are illegal, and some are perfectly good businesses. They are simply not what these schemes were built to fund, and applying as though they are wastes a round’s worth of time.

We will tell you which side of that line you sit on before we apply, rather than after HMRC has said no — because a refusal is not neutral. It is on the record, and your investors will ask.

SEIS and EIS questions

Straight answers

What is SEIS advance assurance and do we need it?

It is HMRC confirming, before you raise, that a proposed share issue looks like it will qualify for the scheme. Legally you can raise without it. Practically most angels will not wire money without it, because their relief depends on your company qualifying and they have no way of checking that themselves. It is the first thing we do.

How much can our company raise under SEIS and EIS?

SEIS is capped at £250,000 over the company's lifetime, with gross assets of no more than £350,000 at the point shares are issued, fewer than 25 full-time equivalent employees, and a qualifying trade carried on for no more than three years. EIS runs to £10 million in any 12 months and £24 million over the company's lifetime, with gross assets of no more than £30 million before the issue and £35 million immediately after, fewer than 250 employees, and within seven years of first commercial sale. The EIS limits doubled on 6 April 2026.

Do the new EIS limits apply to a Northern Ireland company?

Not to all of them. A Northern Ireland company trading in goods, or in the generation, transmission, distribution, supply, wholesale or cross-border exchange of electricity, is a “specified company” and keeps the old limits: £5 million a year, £12 million lifetime, and gross assets of £15 million before and £16 million after. If you manufacture in Northern Ireland this is the single most important sentence on this page, and it is one a lot of advisers have not caught up with.

Does the order we issue shares in matter?

Enormously, and it is where rounds go wrong irreversibly. SEIS shares must be issued before EIS shares. Issue them on the same day and the SEIS shares do not qualify, which means your earliest investors lose 50% relief they were promised. Unwinding it afterwards is not a phone call to HMRC; it is a court application. We sequence the issue before anyone signs anything.

Why do advance assurance applications get refused?

Most often the risk-to-capital condition, which asks whether the company genuinely intends to grow and develop its trade long term and whether the investor is genuinely at risk of losing more than they get back in relief. Structures that look asset-backed, income-secured or built around a pre-planned exit fail it. After that: an excluded activity forming a substantial part of the trade, applications that name no actual prospective investors, and failing to disclose an intermediary, which invalidates any assurance given.

How long does advance assurance take?

HMRC's internal aim is most applications within 15 working days and complex ones within 40, but in practice six to eight weeks is common and the approval rate has been falling — provisional 2025-26 figures show 76% of SEIS and 72% of EIS applications approved, down from 85% and 76% the year before. Build the time into your raise rather than discovering it mid-round.

What happens after the money arrives?

The part most founders have not budgeted attention for. You file a compliance statement with HMRC, and once it is authorised you issue each investor their certificate — which is the document they actually need to claim their relief. Until that lands, your investors have paid for a tax relief they cannot yet claim, and they will chase you for it. We run this end to end so it does not become your problem three months after close.

Advance assurance to investor certificates

Get the assurance sorted before you start pitching.

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