SEIS/EIS compliance after you raise: what you must not miss

Why this matters more than you think

Your SEIS and EIS investors didn't just back you because they liked the pitch. A big part of the deal was the tax relief — SEIS and EIS are UK government schemes that give investors generous income-tax relief (and more) for backing early-stage companies like yours. That relief is, quietly, one of the main reasons they wrote the cheque.

Here's the part founders underestimate: that relief isn't locked in the moment the money lands. It can be withdrawn — clawed back by HMRC — if your company does the wrong things in the roughly three years after the investment. And if it gets clawed back, it's your investors who pay, through no fault of their own. There are few faster ways to destroy an investor relationship than costing an angel their tax relief because you tripped a rule you didn't know existed.

So this isn't dusty admin. It's looking after the people who looked after you — and protecting your own ability to raise from them again. The good news: the rules are knowable, and most slip-ups are entirely avoidable once you know what to watch.

Important: SEIS and EIS rules change, and the detail depends on your specific company and round. Treat everything below as a plain-English orientation, not advice. Always confirm the current rules and your own position with HMRC (and your accountant or SEIS/EIS adviser) before acting.

The headline you can't forget: the 3-year rule

If you remember one thing, remember this. For your investors to keep their relief, the qualifying conditions broadly have to hold for three years from the investment (or from when you started trading, depending on the scheme and circumstances). Sell up, change the business fundamentally, or breach a condition inside that window, and the relief can be withdrawn.

In plain terms: the three years after the raise are a compliance period. Cross the finish line cleanly and the relief is your investors' to keep. Stumble before then and it can unravel. The rest of this article is really just "what could trip you inside those three years."

What you must not do (the trip-wires)

These are the common ways founders accidentally endanger the relief. None are obvious, which is exactly why they catch people out.

Don't let the shares be redeemed or repaid early. Buying back your investors' shares, or repaying their capital, inside the period can disqualify the relief. What felt like a friendly "let me return your money" can cost them more than it gives back.

Watch what the money is spent on. The funds generally have to be used for the qualifying trade you raised for, within a set time. Parking it, lending it out, or using it for an excluded activity can cause problems. Spend it on growing the business you described.

Mind the "qualifying company" conditions over time. Things like staying under the gross-assets and employee limits, not becoming controlled by another company, and not drifting into an excluded trade (certain activities — like dealing in land, financial services or property development — don't qualify). Growing into a breach is still a breach.

Be careful with later fundraising and structure changes. Some later rounds, share reorganisations, or putting a new holding company on top can affect existing SEIS/EIS investors if not structured correctly. Get advice before you do any of these, not after.

Don't miss the paperwork. To unlock the relief in the first place, you file a compliance statement with HMRC (form SEIS1/EIS1) once you've met the conditions, and HMRC then issues you SEIS3/EIS3 certificates to pass to your investors — the documents they need to actually claim. Forget this and your investors can't claim at all, however well you've behaved.

The pattern across all of these: the dangers cluster around money movements, structure changes, and dates. Know the trip-wires and you simply route around them.

Why this slips through the cracks

Here's the honest problem. None of this is on your radar day to day. You raised, you got back to building, and the SEIS/EIS conditions live in a dense PDF you skimmed once. There's no alarm that goes off when you're about to do something that endangers the relief — until an investor's accountant raises it, or HMRC does, by which point it may be too late.

The deeper issue is that compliance here is about dates and events: a three-year window that's silently counting down, paperwork deadlines, and decisions (a buyback, a new round, a structure change) that each carry hidden conditions. Founders without a finance team have nowhere that tracks all this. So it's not that founders are careless — it's that nothing is watching the calendar for them.

The better way: put it on a calendar that watches for you

The fix is to turn this invisible, easy-to-forget set of rules into a visible, tracked set of dates and reminders — so the three-year clock and the paperwork stop living in your memory.

In Ledgers, the compliance calendar does exactly that. It tracks your SEIS/EIS-relevant dates alongside your other statutory deadlines — Companies House confirmation statements, VAT, year-end — so the things that protect your investors' relief sit in the same place as everything else you can't afford to miss, with reminders before they bite rather than after.

It also helps with the paperwork end. The SEIS3/EIS3 generator helps you produce the certificates your investors need to claim their relief, drawn from your records, so that critical step doesn't get lost. And because your books are continuously reconciled and your cap table is modelled in one place, the company-level facts that the conditions depend on — what's been issued, who owns what, how the money's been used — are clean and to hand if HMRC or an investor's accountant ever asks.

You still confirm the rules and your specific position with HMRC and your adviser — that doesn't change. But instead of carrying a three-year countdown in your head, you've got a calendar that surfaces it, paperwork that's generated rather than chased, and records that already tie together.

What you'd actually see and do

After your raise, your SEIS/EIS dates go onto the compliance calendar alongside your other deadlines. The three-year window and key paperwork dates are visible, with reminders ahead of time. When it's time to issue certificates, the SEIS3/EIS3 generator builds them from your records to pass to investors. And before any big move — a buyback, a new round, a restructure — the calendar and clean records are a prompt to check with your adviser first. The compliance that protects your investors stops being a thing you hope you remembered, and becomes a thing you can see.

The short version

SEIS/EIS relief isn't locked in at the raise — it can be clawed back if you breach the conditions in roughly the three years after, and it's your investors who'd pay. The trip-wires cluster around redeeming shares, how the money's spent, qualifying-company limits, later structure changes, and the SEIS3/EIS3 paperwork. None of it is on your radar day to day, which is why a compliance calendar that watches the dates for you is worth so much. And always confirm the current rules and your own position with HMRC and your adviser.

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Ready to stop carrying a three-year countdown in your head? In Ledgers, the compliance calendar tracks your SEIS/EIS dates alongside your other deadlines, the SEIS3/EIS3 generator builds the certificates your investors need, and your records stay reconciled and ready. See your numbers without learning accounting → start free. Always confirm current SEIS/EIS rules with HMRC.

Keeping those same investors warm afterwards? How to keep multiple investors updated (without 12 separate emails) →

Want the full picture of life after the raise? The founder's guide to managing investors (without a finance team) →

Frequently asked questions

What is the SEIS/EIS 3-year rule?

Broadly, the qualifying conditions must keep being met for around three years after the investment (or the start of trading) for your investors to keep their relief. Breaching a condition or selling up inside that window can cause the relief to be withdrawn. Confirm the exact period for your situation with HMRC.

Can SEIS or EIS relief be taken back after investment?

Yes. If the company breaches the qualifying conditions within the relevant period — for example by redeeming shares, misusing the funds, or making certain structure changes — HMRC can withdraw the relief, and the investor bears the cost.

What are SEIS3 and EIS3 certificates?

They're the documents HMRC issues to your company (after you file the SEIS1/EIS1 compliance statement) to pass on to investors. Investors need them to claim their relief, so producing and sending them is a step you can't skip.

Do I need an accountant for SEIS/EIS compliance?

It's strongly advisable. The rules are detailed and change, and mistakes cost your investors real money. Use a tool to track the dates and generate the paperwork, but confirm the current rules and any big decisions with HMRC and a qualified SEIS/EIS adviser.

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