Your Complete SEIS Guide for New Businesses with Oriel IPO

Getting Seeded: The Essential Overview

Every new startup wants cash in the bank. But raising that first seed stage round can feel like shouting down a well. That’s where our complete SEIS guide steps in. We’ll walk you through the Seed Enterprise Investment Scheme (SEIS) from A to Z. You’ll see how generous tax reliefs, clear eligibility rules and smart investor incentives can transform your funding hunt.

By the end, you’ll know exactly how to prepare, apply and win backing. We’ll cover Advance Assurance, the difference between SEIS and EIS, relief breakdowns, common pitfalls and more. And if you’re keen to take the next step right away, why not check out Discover your complete SEIS guide with Oriel IPO for a streamlined, commission-free investment marketplace that connects you with angel investors who value tax-efficient, vetted opportunities.


Why This Complete SEIS Guide Matters to You

Building a business is tough. Convincing investors to jump in is harder. SEIS is a UK-government scheme that dangles up to 50% income tax relief for those investors. You get funding, they save on tax. It’s straightforward. But the rules? They can trip you up. That’s why this complete SEIS guide exists: to light your path.

Oriel IPO isn’t just a platform. We’re your partner. Our curated, commission-free model keeps more capital in your hands. Plus, we offer educational webinars, detailed how-tos and expert walkthroughs. All housed under one roof. Ready to explore every angle? Let’s dive in.


What Is SEIS and How Does It Work?

SEIS stands for Seed Enterprise Investment Scheme. It’s a tax-incentive plan by the UK government. It’s designed for small companies less than three years old. Instead of the government writing cheques, they reward your investors with generosity:

  • Up to £150,000 can be invested per company under SEIS.
  • Investors claim up to 50% income tax relief on that amount.
  • No Capital Gains Tax on eligible growth if shares are held for three years.
  • Loss relief if the venture fails—your investor’s downside is cushioned.

In simple terms: investors buy shares in your startup, claim tax savings, and you secure vital capital. With this complete SEIS guide, you’ll see how to make your pitch irresistible.

Eligibility Criteria for Businesses

Before you launch any application, confirm you tick every box:

  • Trading less than three years.
  • Gross assets under £200,000 at share issue.
  • Fewer than 25 full-time equivalent employees.
  • Engaged in qualifying trades (most service, tech and creative businesses apply).
  • Not listed on any recognised stock exchange.
  • Independent, not a subsidiary of another company.

Advance Assurance Process

Advance Assurance is your golden ticket. It’s written confirmation from HMRC that your plan “likely qualifies” for SEIS. It’s not a guarantee—but it’s a powerful trust signal for investors. You’ll need:

  1. A concise business plan.
  2. Forecasts and proposed funding amount (up to £150k).
  3. Memorandum and articles of association.
  4. SEIS compliance checklist.

Send these to HMRC. Expect a decision in about eight weeks. Nail this step to boost investor confidence.


Comparing SEIS vs. EIS: Which Scheme Suits You?

Here’s a quick head-to-head:

• Company Age
– SEIS: under 3 years
– EIS: up to 7 years (10 for Knowledge Intensive Companies)

• Tax Relief Rate
– SEIS: 50% income tax relief
– EIS: 30% income tax relief

• Investment Caps
– SEIS: £150,000 per business
– EIS: up to £5m per year, £12m total

• Asset Limits
– SEIS: £200,000 gross assets at share issue
– EIS: £15m (standard), £20m (KIC)

SEIS is perfect for very early-stage startups. EIS fits maturing ventures with bigger funding rounds. That’s why our platform offers clear side-by-side guidance, so you choose what aligns with your growth stage.


How Oriel IPO Makes This Complete SEIS Guide Actionable

You’ve read the rules, but where do you go next? Oriel IPO’s commission-free marketplace simplifies the rest:

  • Curated Opportunities: No tire-kickers. Each business meets strict SEIS/EIS criteria.
  • Educational Resources: Webinars, step-by-step checklists and expert Q&A sessions tailored to UK regulations.
  • Transparent Subscription Model: One simple fee. You keep 100% of investor funds.
  • Dedicated Support: Confidential advisors guide you through Advance Assurance and investor negotiations.

Now that you’ve seen the outline of this complete SEIS guide, you can tap into our platform to start conversations with angel investors who understand your vision.


Step-by-Step Application Process

Follow these steps to move from idea to investment:

  1. Prepare Your Documents
    – Business plan, forecasts, compliance checklist.
  2. Seek Advance Assurance
    – Submit to HMRC and await approval.
  3. Register on Oriel IPO
    – Showcase your SEIS-ready opportunity.
  4. Engage Investors
    – Use our pitching templates and private deal room.
  5. Finalise Investment
    – Issue shares, complete filings, and receive funds.
  6. Claim Tax Relief
    – Ensure investors have the right HMRC forms to file.

Mid-journey stuck? You can always refer back to this complete SEIS guide or drop in for a personalised walkthrough on our site. Browse our commission-free SEIS platform


Tax Reliefs Broken Down

SEIS isn’t a one-size-fits-all toy. Make sure you leverage every relief:

• Income Tax Relief
– 50% off the investment, up to £75,000 per tax year.

• Capital Gains Tax Reinvestment Relief
– Reinvest gains into SEIS shares to get 50% relief on the reinvested amount.

• CGT Exemption on SEIS Shares
– No CGT on growth if held three years.

• Loss Relief
– Claim any net loss against income or CGT.

• Inheritance Tax Relief
– After two years, SEIS shares can qualify for Business Property Relief.

Keep detailed records. Confident investors will ask for evidence, and you want to deliver.


Common Pitfalls and How to Avoid Them

Don’t fall into these traps:

  • Missing Deadlines
    – Claim income tax relief within five years of share issue.
  • Overlooking Trade Exclusions
    – Certain financial services, property development or legal services might not qualify.
  • Ignoring Related Parties
    – Close-held companies can breach ownership rules.
  • Weak Documentation
    – An incomplete SEIS compliance statement can delay or void relief.

Walk through common traps in this complete SEIS guide section before you file.


Frequently Asked Questions

Q: Where can I find the complete SEIS guide for advance assurance?
A: We’ve consolidated it right here—plus exclusive templates on the Oriel IPO platform.

Q: Can I switch from SEIS to EIS if I outgrow the scheme?
A: Yes. After three years or if you hit SEIS limits, you can apply for EIS on the same platform.

Q: What if HMRC rejects Advance Assurance?
A: Revisit your trade details, asset figures and compliance checklists. Our advisors can help you reapply.

Q: Does my business qualify according to this complete SEIS guide?
A: If you meet age, asset, employee and trade criteria, you’re a strong candidate. Chat with our team for a pre-check.


Real Success Stories

“Oriel IPO’s platform cut through weeks of legwork. We secured £120k in SEIS funding within a month. Their guides and webinars were spot on.”
— Emma J., Founder of AeroGreen Tech

“As an investor, I value clarity. Oriel IPO’s curated opportunities feel safer. The tax relief breakdown was simple to share with my accountant.”
— Raj P., Angel Investor


Ready to Transform Your Funding Journey?

You’ve reached the end of this complete SEIS guide. Now it’s time to put insights into action. Oriel IPO’s transparent, commission-free marketplace waits—packed with vetted startups and angel investors eager to make your venture happen. Get started with our complete SEIS guide today

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