Northrow SEIS & EIS

SEIS & EIS Advanced Assurance for UK Startups

Northrow specialises exclusively in SEIS and EIS Advanced Assurance, helping early-stage UK companies secure HMRC approval before capital is raised.We focus on the point where eligibility, narrative, and structure matter most — removing uncertainty for founders, investors, and professional advisers.

What We Do

We handle the SEIS/EIS Advanced Assurance process end-to-end, including:

  • • Initial eligibility assessment

  • • Review of the company’s trade and growth plans

  • • Preparation of the HMRC narrative and supporting documents

  • • Submission of the Advanced Assurance application

  • • Guidance on structure, share classes, and investor communication

  • • Liaising with HMRC until the final decision

Our scope is deliberately narrow.
We focus on one outcome: securing HMRC clearance with minimal risk.

Who We Work With

  • Founders raising angel capital under SEIS or EIS

  • Accountants and fractional CFOs seeking specialist SEIS/EIS support

  • Solicitors who want eligibility risk addressed before documentation

  • Angel-backed startups where tax relief is critical to closing a round

Most engagements are first-time raises, but we also support follow-on rounds where structure needs to be future-proofed.

Success Stories

A few examples of recent Northrow outcomes:

Cayo Baby
✓ Advanced Assurance secured for SEIS
✓ SEIS Compliance Statement approved
✓ Multiple investors received their rebateNera Pilates
✓ Advanced Assurance obtained for SEIS
✓ SEIS Compliance Statement approved
✓ Investor has already received their rebateJetts Fitness Franchise (4 directors, 25% each)
✓ Advanced Assurance secured for both SEIS & EIS
✓ Compliance Statements approved
✓ £125k of tax relief delivered across investorsToto
✓ Advanced Assurance secured for SEIS
✓ SEIS Compliance Statement approved
✓ Multiple investors received their rebateKaya Studios
✓ SEIS Advanced Assurance approved
✓ Compliance Statement submitted

What We Don't Do

To keep risk low and outcomes clear, we do not provide:

  • General tax advice

  • Fundraising strategy or investor introductions

  • Legal drafting or company secretarial services

  • Ongoing advisory retainers

This allows us to remain focused, efficient, and accountable for the HMRC process itself.

How Engagements Work

  • Fixed-fee engagements

  • Defined scope agreed upfront

  • Clear timelines (typically 2–4 weeks, subject to HMRC)

  • Direct point of contact throughout the process

Where a company is not suitable for SEIS or EIS, we will say so early.

Working with Professional Advisors

Northrow frequently works alongside accountants and solicitors as a specialist extension of their team.

  • We own the SEIS/EIS eligibility and HMRC narrative

  • You retain control of the wider client relationship

  • Clear lines of responsibility reduce downstream risk

Advisers refer to us because our specialist focus reduces their liability and streamlines HMRC submissions, while they retain the client relationship.

Enquiries

If you are considering SEIS or EIS — or want a view on eligibility before progressing — you can get in touch below.

Northrow SEIS & EIS is a specialist practice operated by Perobatesa Ltd, trading as Northrow.