EIS advance assurance is HMRC’s non-statutory opinion that a proposed share issue is likely to qualify for EIS relief. It isn’t a legal requirement. No rule forces you to apply for it before raising money. But in practice, most serious investors and EIS funds won’t commit funds without seeing it first, because they’re staking their own tax position on your company’s eligibility.
Statistic to know: investors can claim 30% income tax relief on qualifying EIS investment, but only once they hold a valid EIS3 certificate. Advance assurance is the step that gives them confidence that certificate will eventually exist.
EIS advance assurance succeeds when the application’s disclosures are complete, consistent, and mapped directly to HMRC’s statutory tests rather than written as a general pitch.
| Point | Details |
|---|---|
| Advance assurance is discretionary | HMRC’s opinion isn’t mandatory but investors routinely expect it before committing funds. |
| Budget four weeks | HMRC aims to respond within a few weeks on simple cases, and longer on complex ones. |
| Prepare a full document set | Cap table, constitutional documents, and financial projections must all match before submission. |
| Compliance continues after assurance | The EIS1 statement and EIS3 certificate come only after shares are issued and spent as intended. |
| Specialist review reduces risk | Priceandaccountants prepares applications, reconciles cap tables, and manages compliance through the three-year qualifying period. |
HMRC’s assessment isn’t a rubber stamp on your business idea. It tests specific things: is your trade a qualifying one, does the company meet the gross assets and employee limits, is it within the age limits for the scheme (with extended limits for knowledge-intensive companies), and crucially, does the investment carry genuine risk to the investor’s capital.
Think of advance assurance as a photograph, not a promise. HMRC forms its opinion based on the facts you present at the point of application. If those facts change materially afterwards, the opinion no longer holds.
You should apply for advance assurance when:
Founders who apply too early, before they know their structure or funding amount, tend to waste the application and have to resubmit once the numbers firm up.
A strong application maps every fact directly onto the EIS statutory tests rather than simply describing the business in general terms. HMRC’s own Venture Capital Schemes Manual is explicit that full and open disclosure is expected, and incomplete submissions are one of the most common reasons applications stall.
Work through this checklist before you submit:
Pro Tip: Reconcile your cap table against your Companies House filings before you submit anything. A mismatch between what your covering letter says and what’s on the public record is one of the fastest ways to trigger a request for further information, and that alone can add weeks to your timeline.
Applications go to HMRC’s Venture Capital Reliefs Team, using the EIS-SEIS(AA) submission route. It’s a single team handling a national caseload, so how you present your case matters as much as the facts themselves.
On timelines: HMRC’s own aim, per the Venture Capital Schemes Manual, is 15 working days for straightforward cases, stretching to 40 working days for complex structures. The wider industry rule of thumb is to budget around four weeks. Founders who build that into their fundraising timeline, rather than treating advance assurance as a same-week formality, tend to keep investors calmer during the wait.
There’s no formal right of appeal if HMRC refuses. Because the opinion is discretionary, your practical route is to fix the underlying issue and reapply, not to contest the decision.
Advance assurance and compliance are two separate stages, and mixing them up causes real problems. Advance assurance is HMRC’s opinion before you raise. The compliance statement (Form EIS1) is what you file after shares have actually been issued, and it’s only once HMRC processes that statement that they issue the EIS2 authorisation and the EIS3 certificates investors need.
Most refusals and delays trace back to a small handful of avoidable mistakes rather than genuine ineligibility.
Pro Tip: If your business model or funding plan changes materially after you’ve received advance assurance, notify HMRC and consider reapplying rather than hoping nobody notices. Silence is far riskier than a fresh submission.
A specialist adviser earns their fee doing the parts founders most often get wrong: drafting a covering letter that speaks HMRC’s own statutory language, checking your cap table and constitutional documents line by line, and modelling your use-of-funds forecast so the numbers hold up under scrutiny.
A full adviser-led package, covering letter, legal document checks, projections, and cap table reconciliation, materially reduces the back-and-forth with HMRC and is worth the cost precisely because investor readiness depends on getting the assurance right the first time.
Price & Accountants has taken more than 20 founders through this process, some now valued well beyond £50 million, giving Rahamut and the team a genuinely practical view of what HMRC actually queries.
Most guidance on this topic treats advance assurance as a box-ticking exercise: fill in the form, attach a business plan, wait. That’s not wrong, exactly, but it undersells what actually determines whether an application sails through or drags on for six weeks. The single biggest variable is whether your covering letter speaks HMRC’s own statutory language, risk-to-capital, qualifying trade, gross assets, rather than reading like a pitch deck.
I’d also push back on the idea that advance assurance is a one-off event you secure and then forget. Founders treat it as a finish line. It’s closer to a starting position. The real work, keeping your trade qualifying, keeping your use of funds aligned with what you told HMRC, keeping your cap table clean, runs for the full three-year qualifying period. That’s where relief actually gets withdrawn, not at the assurance stage.
If you take one thing from this: prioritise document consistency over speed. A founder who spends an extra week reconciling their cap table against Companies House filings will out-pace, not lag behind, one who rushes a submission full of small contradictions.
— Rahamut
Getting advance assurance right the first time saves you weeks and keeps investors from getting cold feet mid-raise. Price & Accountants specialises in exactly this: preparing advance assurance applications, drafting covering letters that map to HMRC’s statutory tests, reconciling cap tables against Companies House filings, and managing the EIS1 compliance statement once your shares are issued.
With over 40 years of combined experience and a track record spanning more than 20 start-up clients, some now valued well over £50 million, the team has seen most of the ways an application can stall and knows how to head them off before HMRC ever sees the paperwork. An initial engagement typically starts with a review of your current documents, forecasts, and structure, followed by a clear view of what’s missing before anything goes to HMRC. If you’re heading into a raise and want your advance assurance application handled properly the first time, get in touch with Price & Accountants to arrange a discovery call.
