United Kingdom — Startups · corporate

Advance Subscription Agreement Longstop Date Reached in the UK: What to Do

Reaching an Advance Subscription Agreement (ASA) longstop date without closing a qualifying financing round triggers mandatory fallback mechanics under UK corporate law. Founders and investors must act swiftly to execute automatic share conversion or agree on a legally valid extension without triggering SEIS or EIS disqualification under HMRC rules.

What the law says: UK Advance Subscription Agreements and longstop mechanics

In the United Kingdom, an Advance Subscription Agreement is an equity investment instrument, not a debt contract. Unlike US-style convertible notes or SAFEs, UK ASAs are drafted strictly to comply with HM Revenue & Customs (HMRC) Venture Capital Schemes guidelines (such as HMRC Venture Capital Schemes Manual VCM12020 and VCM14060). Under these rules, ASA funds cannot be repaid or refunded under any circumstances. If an agreement purports to permit a refund of the subscription amount upon missing a funding round, HMRC treats the capital as debt, instantly disqualifying investors from Seed Enterprise Investment Scheme (SEIS) or Enterprise Investment Scheme (EIS) tax relief under the Income Tax Act 2007.

When the contractually specified longstop date (maturity date) arrives without a qualifying funding round, the standard ASA requires an automatic conversion of the upfront funds into equity. The company does not have the unilateral legal right to ignore this date. Under the Companies Act 2006, directors must possess the statutory authority to allot those shares (under section 550 for private companies with a single class of shares, or section 551 via existing shareholder authorization) and ensure statutory pre-emption rights have been disapplied under section 561. Failing to complete the allotment leaves the company in breach of contract and risks shareholder disputes.

The core risks: SEIS/EIS invalidation, pre-emption blocks, and shareholder friction

A common pressure point arises when panicked investors demand their money back because a priced round did not materialize. Agreeing to return funds is not only a breach of the equity nature of an ASA, but it also compromises any SEIS or EIS advance assurance and creates serious capital maintenance issues under Part 23 of the Companies Act 2006. If the company returns capital without following strict statutory reduction procedures or having sufficient distributable reserves, the transaction is unlawful.

Conversely, converting shares without checking the company's Articles of Association and existing shareholder agreements can trigger immediate conflict. Fallback provisions generally dictate conversion at a pre-agreed 'floor price' (a fixed lower valuation cap) into ordinary shares or the most senior existing class of shares. If the directors fail to secure the requisite shareholder resolutions to allot the shares and disapply pre-emption rights, the company faces an impossible standoff between its contractual conversion obligation to the ASA investor and statutory company law prohibitions.

What you can do next: Resolving the allotment or negotiating an extension

You have two lawful paths: execute the automatic conversion under the contract's fallback terms or formally negotiate a written extension with the investor. If proceeding with conversion, the board must pass resolutions to allot the shares at the longstop conversion price, enter the investor into the register of members, and submit Form SH01 (Return of Allotment of Shares) to Companies House within one month as required by section 555 of the Companies Act 2006. If SEIS or EIS compliance forms (SEIS1/EIS1) are involved, they can only be submitted to HMRC after the shares are definitively issued.

If both parties prefer to delay conversion until an upcoming round closes, an extension must be executed through a formal deed of variation or amendment. However, be cautious: HMRC expects ASA funds to convert within a maximum of six months from the date of the original agreement for SEIS/EIS qualification. Extending beyond this window jeopardizes the investor's tax relief. You can use Caunsel to research these statutory requirements, store your constitutional documents and agreements in a case file, or list your matter to consult an independent UK corporate solicitor before taking action.

Steps

• Review the original ASA conversion clause: Identify the exact longstop date, the default share class specified, and the fallback conversion price (often the floor price or a fixed nominal valuation).
• Audit director allotment powers: Confirm whether the board holds valid authorization to allot new shares under section 550 or 551 of the Companies Act 2006 and whether pre-emption rights are disapplied under section 561.
• Decide between conversion and variation: Determine with the investor whether to issue fallback shares immediately or execute a formal deed of amendment to extend the longstop (noting HMRC 6-month SEIS/EIS constraints).
• Pass board and shareholder resolutions: Formally resolve to issue the shares, update the company's statutory register of members, and issue a share certificate to the investor.
• Complete statutory filings: File Form SH01 with Companies House within one month of share allotment under section 555 of the Companies Act 2006.

Common mistakes

• Refunding the investor's subscription money: ASA funds cannot be repaid; returning capital destroys SEIS/EIS tax eligibility and risks violating UK capital maintenance rules.
• Letting the longstop date pass in silence: Inaction constitutes an ongoing breach of contract and leaves the company exposed to claims for specific performance or damages.
• Issuing shares without statutory authority: Allotting shares in violation of Companies Act 2006 section 551 or without waiving statutory pre-emption rights under section 561 renders the allotment defective.
• Submitting SEIS1 or EIS1 compliance forms prior to allotment: Tax relief compliance certificates cannot be filed with HMRC while the funds remain unallotted under the ASA.

Questions people ask

Can an investor demand their subscription money back once the longstop date passes?

No, provided the ASA was properly drafted under standard UK practice to comply with HMRC rules. ASAs are pure equity agreements, not debt or loans. The contract gives the investor the right to receive shares at the fallback valuation, not a cash refund.

Can we extend the ASA longstop date without converting?

Yes, but only if all parties execute a formal written amendment or deed of variation. However, if the investor intends to claim SEIS or EIS tax relief, HMRC guidelines (VCM12020) require conversion within six months of the original investment date; extending beyond this window puts tax relief at risk.

What share price is used if no funding round has taken place?

The price is determined by the fallback conversion terms in your agreement. This is typically a predefined 'floor price' (a low baseline valuation) or the price of the most recent prior equity round, calculated to ensure the investor receives a set number of shares.

General information only, last updated 2026-11-05. Caunsel is not a law firm and does not practise law. AI answers and this guide are not legal advice. Verify filings, deadlines, and statutes with a licensed lawyer in United Kingdom — Startups.