Nailing Your SEIS Compliance: The Waiting Game Founders Hate
You closed your funding round. The cash landed in the company bank account. Your angel investors are already emailing you every week asking for their tax certificates. It feels natural to run straight to HMRC and submit your paperwork right away, but hitting submit too early is one of the most common mistakes early-stage founders make. If you jump the gun before satisfying the statutory conditions, HMRC will reject your submission flat out. That wastes weeks of administrative time and creates instant friction with your backers.
To issue those sweet tax relief certificates, your company must first submit the SEIS1 compliance statement. By law, you cannot submit this form on day one. You have to pass one of two gateway hurdles: you must have traded for at least four months, or you must meet the SEIS 70 percent test on your qualifying spend. Getting this timing right protects your investors’ relief and keeps your tax affairs clean. If you want to understand the bigger picture before diving into statutory rules, check out how Oriel IPO clarifies compliance statement timing to keep your round running smoothly.
Why Timing Matters: Advance Assurance vs SEIS1
Founders often mix up Advance Assurance with the actual SEIS1 submission. Let us clear that up right now.
Advance Assurance is provisional. You ask HMRC before you raise money: “If we issue shares under these terms, will our business qualify?” HMRC looks at your business model, verifies your trading status, checks the risk-to-capital condition, and says yes or no. It gives angel investors confidence to wire their money.
The SEIS1 form is the real thing. It is the formal compliance statement you file after you receive investment money and issue new ordinary shares. When HMRC approves your SEIS1 form, they send you form SEIS2. That form contains a unique investment reference number. You then issue SEIS3 certificates directly to your investors, which they use on their UK Self Assessment tax returns to claim up to 50% Income Tax relief.
If you are currently setting up your fundraising round, you can showcase your startup to angel investors without paying hefty success fees. But remember: closing the cash is only half the battle. You need to know the rules on when HMRC permits you to lodge the compliance statement.
The Two Gateways: The Four-Month Rule vs The 70% Test
HMRC sets a strict statutory condition under the Venture Capital Schemes Manual (specifically VCM35040). You cannot submit your SEIS1 form until your company meets at least one of two conditions:
- The Four-Month Trading Test: You have carried on the qualifying trade for at least four months after the share issue date.
- The SEIS 70 Percent Test: You have spent at least 70% of the money raised by that specific share issue on your qualifying business activity.
Notice that tiny word: or. You do not have to meet both. Whichever hurdle you clear first unlocks your right to file the SEIS1 form.
| Requirement Gateway | Trigger Event | Practical Scenario |
|---|---|---|
| Gateway A: 4 Months Trading | Exactly 4 calendar months elapsed since share issue date while actively carrying on your trade | Slower burn rate; capital is conserved for product development over 12+ months |
| Gateway B: 70% Spent | 70% of the gross funds raised in the round are deployed on qualifying trade expenses | High initial burn rate; capital immediately spent on staff, raw materials, or marketing |
If you are an investor looking at deals, knowing how fast a company reaches these milestones is critical. You can explore SEIS startup investment opportunities to see how modern UK early-stage businesses structure their early capital expenditure.
Breaking Down the SEIS 70 Percent Test
Let us look closely at how the math works for the spending gateway.
Suppose your startup raises £100,000 under SEIS. To use this gateway, you must prove that at least £70,000 has been paid out on qualifying business activities.
What counts as qualifying expenditure?
- Salaries for employees directly working on the qualifying trade
- Rent and utilities for trading premises
- R&D expenses, software tooling, testing, and hosting
- Direct marketing, customer acquisition tests, and sales setup
- Day-to-day operational costs directly tied to developing your product or serving clients
What does not count?
- Leaving money in a deposit account or treasury bill
- Paying off historic loans that were not taken out for the immediate trade
- Buying shares or investing in another company
- Distributions to founders that fall outside normal market-rate payroll
- Capital spent on non-qualifying or excluded trading activities
HMRC wants to see the cash actually spent, not merely committed or set aside under a purchase order. Money sitting in your account earmarked for a developer next quarter does not count toward the 70% threshold.
Breaking Down the Four-Month Trading Rule
What happens if you raise £250,000 (the maximum lifetime SEIS allowance) and your monthly burn is only £15,000?
At that rate, spending £175,000 (70% of £250,000) will take you nearly a year. Your investors will not want to wait twelve months for their tax certificates.
This is where the four-month trading rule saves the day. If your company has already been actively trading for four months since the shares were issued, you do not need to hit 70% expenditure. You can submit your SEIS1 immediately on the day after that four-month mark arrives.
What Does HMRC Consider “Trading”?
This catches many pre-revenue tech founders out. For HMRC, carrying on a trade means active commercial operations. It does not necessarily require you to be making massive profits, but it requires more than thinking about an idea.
Examples of active trading include:
- Pitching clients and taking active orders
- Providing services or beta software under commercial pilot agreements
- Active billing, invoicing, and delivering services
- Manufacturing products or delivering physical inventory to users
If you are still purely in research mode with zero active trading operations, your four-month clock might not have started ticking yet. If that is your situation, you will likely have to rely on the SEIS 70 percent test based on your qualifying research and development expenses instead. Professional advisers regularly assist early-stage founders with this classification. Accountants can support investor clients with SEIS rules to make sure dates are not logged prematurely.
Step-by-Step: Preparing Your SEIS1 Submission
When your business clears either the four-month trading hurdle or the 70% spending mark, you are clear to file. Here is the checklist you need before opening the HMRC online portal.
1. Gather Share Details
You need the exact dates when funds were received and when shares were issued. Make sure the shares issued are ordinary, non-redeemable shares with no preferential rights to assets or dividends.
2. Confirm Advance Assurance Reference
If you received Advance Assurance from HMRC, keep your unique reference code nearby. It speeds up processing significantly.
3. Build Your Cap Table and Investor Schedule
Prepare a clean schedule of every investor participating in the round. You need:
– Full legal name
– Residential address
– National Insurance number or Unique Taxpayer Reference (UTR)
– Number of shares issued
– Total cash paid per share
Investors tracking early rounds can discover startup opportunities on Oriel IPO and communicate directly with founders who manage their cap tables transparently.
4. Provide Proof of Meeting the Gateway
In the compliance submission, HMRC asks you to confirm whether you have traded for four months or met the spending requirement. Keep bank statements and general ledger extracts handy. If you rely on the spending threshold, have your accounts updated so you can demonstrate the exact expenses if an inspector raises an enquiry.
For more information on balancing seed rounds and scaling up into larger allowances, it helps to understand EIS startup investment mechanics, which apply once you graduate past SEIS.
What Happens If You File Too Early?
Filing an invalid SEIS1 form is painful. If you submit at month three without having spent 70% of the round proceeds, HMRC will reject the statement.
HMRC’s Small Companies Enterprise Centre (SCEC) does not simply pause your application until month four arrives. They reject the form because the legal declaration made at the time of signing was invalid. You will have to wait for the proper criteria to be fulfilled, create a brand-new submission, and drop straight to the back of the review queue.
Given that HMRC processing queues for compliance statements often take anywhere from 4 to 12 weeks, an early filing mistake can delay your investors’ SEIS3 certificates by months. That is the quickest way to burn goodwill with your angel syndicate.
If you ever find yourself uncertain about whether you qualify to submit, you can explore Oriel IPO membership plans to join an active network of founders and advisers who share practical compliance experience.
Key Deadlines You Must Not Miss
While this guide focuses on the earliest date you can submit, you must also watch the final statutory deadline.
HMRC requires you to submit form SEIS1 no later than:
– Two years after the end of the tax year in which the shares were issued, OR
– Two years after the end of the tax year in which the company met the four-month trading test or 70% spend test.
Whichever date is later applies. In practice, almost no company waits two years. Angel investors will usually demand their SEIS3 certificates within 3 to 6 months of writing their cheques so they can submit their tax claims before the self-assessment deadlines in January.
If you are expanding your business network, consider how you can connect with startup ecosystem partners who understand these statutory timelines and help founders avoid administrative snags.
Managing Post-Approval: Distributing SEIS3 Forms
Once HMRC reviews and approves your SEIS1 compliance statement, they issue form SEIS2 to your company. This document includes a unique HMRC compliance reference number.
Here is what you do next:
- Obtain official blank SEIS3 certificates from HMRC or generate them using approved compliance software.
- Fill out Section A of the SEIS3 form for each individual investor, inserting the company name, share class, date of issue, cash invested, and your SEIS2 reference number.
- Sign and date each form as a company director.
- Send the signed SEIS3 certificates to your investors.
Your investors complete Section B on their own and send it to HMRC or claim the relief directly via their Self Assessment tax return. They can claim up to 50% income tax relief on their investment, write off potential losses against income, and enjoy capital gains exemption if they hold the shares for at least three years.
Wrapping Up: Get Your Timing Right
Filing your SEIS1 form is not a race to see who submits first. It is an exercise in statutory accuracy. Make sure you can prove active trading for four continuous months, or maintain clean bookkeeping that demonstrates 70% of the funds are already spent on qualifying expenses.
Once you tick either box, file promptly through HMRC’s online portal so your angel investors get their tax certificates without unnecessary delays. To keep your startup visible to verified private angels and professional advisers while operating completely commission-free, make sure to check out how early-stage founders use Oriel IPO to grow their businesses.
