Legal

Terms of Use

Last updated: 12 June 2026

By using seisly.com you agree to these terms. If you do not agree, do not use the service.

1. Who we are

1.1 Seisly is operated by Litigo Limited, a company incorporated in England and Wales (company number 16895608), registered at 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ (“Seisly”, “we”, “us”, “our”).

2. Business customers

2.1 Our services are supplied to businesses. Our customers are companies, and the person placing an order is treated as acting for and on behalf of a company (typically the founder acting for their own startup). These terms are written on that basis. They are not consumer terms, and the Consumer Rights Act 2015 does not apply to them.

3. What Seisly is

3.1 Seisly is a document preparation and application management service. We help companies prepare, and where requested submit, applications for SEIS and EIS advance assurance to HMRC. We serve UK companies and non-UK companies that qualify for UK SEIS/EIS.

3.2 Seisly is not a law firm, accountancy practice, or regulated financial services provider. We do not provide legal advice, tax advice, or investment advice. Nothing on seisly.com or in any document we prepare constitutes legal or tax advice.

3.3 If you need legal or tax advice, you should consult a qualified solicitor or accountant. Our free Seisly Advisers referral service can connect you with a vetted specialist firm; any engagement you enter into with that firm is a separate contract between you and the firm, on the firm's terms, and is not covered by these terms.

4. What you are paying for

4.1 Our core product is the AA Draft. When you buy an AA Draft, you are paying for:

  • preparation of your SEIS and/or EIS advance assurance application in the format HMRC requires, based on the information and documents you provide;
  • an AI-drafted covering letter, prepared from the information and documents you provide, which you review, edit, and approve as your own document before any submission; and
  • an HMRC-ready application that you may submit to HMRC yourself at no further charge, or have us submit for you using the Submission Service add-on.

4.2 The following are optional paid add-ons, at the prices shown at checkout:

  • Express Review: a faster human-review turnaround (see section 8);
  • Submission Service: we act as your authorised agent, submit your application to HMRC, manage HMRC's response and handle one round of HMRC follow-up queries (see section 6);
  • Non-UK Companies surcharge: where your company is incorporated outside the UK but qualifies for UK SEIS/EIS.

4.3 We also offer a free Eligibility Check before purchase, and the free Seisly Advisers referral service described at clause 3.3.

4.4 All prices are as stated on the pricing page at the time of purchase.

5. Fees and VAT

5.1 All prices are stated exclusive of VAT.

5.2 We are not currently registered for VAT and do not currently charge it, and we cannot issue a VAT invoice until we are registered. Prices shown as “+ VAT” indicate that VAT will be added once we are registered. We make the current VAT position clear at the point of sale.

5.3 Once our VAT registration takes effect, VAT at the prevailing rate applies to orders placed on or after the date registration takes effect. HMRC sets that effective date, which may be earlier than the date we receive our registration; where VAT becomes due on an order as a result, we may issue a VAT invoice for the VAT element, and from that point VAT invoices are available for qualifying orders.

5.4 Fees are payable at the point of order. Any refund is of the amount actually paid, in accordance with section 8.

6. Agent authorisation (Submission Service)

6.1 Agent authority applies only if you purchase the Submission Service. When you do, the authority letter appointing Litigo Limited as your agent to submit your advance assurance application to HMRC is generated automatically and immediately when your payment is received.

6.2 This authority is limited to the specific advance assurance application you submit through Seisly. It does not give us authority to act for you in any other matter with HMRC.

6.3 The Submission Service is non-refundable from the time of purchase, as set out in section 8, save where we can provide no deliverable at all or where liability cannot lawfully be excluded.

7. Your responsibilities

7.1 You are responsible for:

  • ensuring that all information you provide through Seisly is accurate, complete, and not misleading;
  • reviewing your application carefully before authorising submission to HMRC;
  • uploading all required supporting documents in full;
  • informing us promptly if any information changes after submission; and
  • complying with all SEIS and EIS conditions during the compliance period.

7.2 Providing false or misleading information to HMRC is a criminal offence. We accept no liability for applications prepared or submitted on the basis of information you have provided that is inaccurate or incomplete.

8. Refunds and cancellations

8.1 The core principle. Our services involve work that we begin promptly after you order, and much of that work is automated and starts the moment your payment is received. Once work has begun on your order, the fee for that service is non-refundable, except where this section expressly says otherwise.

8.2 When work has begun. “Work has begun” means any one of the following has happened in relation to your order:

  • an eligibility check has been run on our systems;
  • our AI has generated any draft application content;
  • a chartered tax adviser has started reviewing your application;
  • an authority letter has been generated;
  • a submission has been made to HMRC; or
  • a Seisly Advisers referral has been initiated.

You should assume that work will start immediately after you order, and that for some services (see clause 8.7) there is no practical pre-work cancellation window at all.

8.3 Cancelling before work has begun. If you cancel within 24 hours of purchase and no work has begun, you are entitled to a full refund of the fee paid. Beyond 24 hours, or once work has begun (whichever is earlier), the fee is non-refundable, subject only to clauses 8.5, 8.6 and 8.7. To cancel, contact us at support@seisly.com quoting your order reference; cancellation takes effect when we receive your request.

8.4 Cancelling after work has begun. If you cancel after work has begun, the fee is non-refundable, whether or not you have yet received a deliverable, and whether or not you choose to use a deliverable you have received.

8.5 HMRC outcomes.

  • We do not guarantee that HMRC will approve any application. HMRC's decision is at its discretion and outside our control (see section 9).
  • If HMRC declines your application, the fee is non-refundable. A decline does not, by itself, indicate any error on our part.
  • If HMRC rejects your application because of a clear and demonstrable error in our work that we acknowledge, you are entitled to a free re-draft and, where applicable, a free re-submission. If a free re-draft or re-submission is not reasonably practicable, or does not resolve the issue, we will instead refund the fee for the affected service. This is your exclusive remedy for an error of that kind, subject to section 10 and to any liability that cannot lawfully be excluded.

8.6 Where we cannot proceed. We may decline to proceed with any application at our discretion. If, after you have ordered, we determine that we can provide no deliverable at all for a service (for example, because we discover that you or your company does not qualify on grounds we could not reasonably detect at the eligibility-check stage), we will refund the fee in full for that service. Where we have already provided a deliverable for another service, only the service for which no deliverable was provided is refunded.

8.7 Product-specific terms.

  • AA Draft (£75 + VAT). Non-refundable once work has begun, subject to clauses 8.3, 8.5 and 8.6.
  • Express Review (£100 + VAT add-on). The Express Review turnaround is the turnaround stated on your order confirmation. That turnaround runs from the point at which we hold everything we need from you to carry out the review, and it does not run during any delay caused by you or by events outside our reasonable control. The add-on is refundable in full only if we fail to release the completed review to you within that turnaround for reasons within our control. If we release it within the turnaround, the add-on is non-refundable. A refund of the add-on does not affect the underlying AA Draft fee.
  • Submission Service (£125 + VAT add-on). The authority letter is generated automatically and immediately on payment, so the service is non-refundable from the time of purchase. The only exceptions are a refund under clause 8.6 and any liability that cannot lawfully be excluded.
  • Non-UK Companies surcharge (£100 + VAT). Treated as part of the AA Draft fee and subject to the same terms.
  • Eligibility Check. Free. No fee is taken, so no refund arises.
  • Seisly Advisers referral. Free to the founder, so no refund arises for the founder. Any engagement with a referred firm is covered by clause 3.3.
  • Firm Credit Packs (sold to partner firms). Credits are non-refundable once purchased. Each credit is valid for 12 months from the date it is purchased. When a firm purchases further credits, the expiry date of every credit that firm holds which has not already expired is extended to fall 12 months after the date of that most recent purchase. Credits that have already expired before a further purchase are not reinstated. These credit terms operate alongside any partner or adviser agreement between us and the firm.

8.8 How refunds are paid. Where a refund is due, we will make it to the original payment method unless that is not possible, in which case we will agree an alternative with you. We aim to process refunds within 10 working days of confirming that a refund is due; the time it then takes to appear in your account depends on your card issuer or bank.

8.9 Chargebacks. If you believe a refund is properly due, contact us first at support@seisly.com. Initiating a chargeback or payment dispute in respect of a fee that is non-refundable under this section, after work has begun, is a breach of these terms, and we reserve the right to recover the disputed amount together with our reasonable costs of recovery, including administrative and legal costs. Nothing in this clause affects any right you have under applicable law or your card scheme's rules to dispute a payment that was genuinely unauthorised or fraudulent.

8.10 Earlier orders. Orders placed before the date these terms take effect are governed by the refund terms that were in force when those orders were placed. This section applies to orders placed on or after that date and does not remove any refund right you had already acquired on an earlier order.

9. HMRC advance assurance: no guarantee of outcome

9.1 We do not guarantee, promise or represent that any application will be approved by HMRC.

9.2 Advance assurance is a discretionary service provided by HMRC. HMRC is not bound by its previous decisions and may refuse advance assurance even where a company appears to meet all qualifying conditions. HMRC's decision is final and there is no right of appeal against it.

9.3 Our AI review is designed to identify common issues and improve application quality. It does not constitute a legal opinion on whether your company qualifies for SEIS or EIS, and it may not identify every potential issue with an application.

9.4 HMRC typically takes 4 to 8 weeks to respond to advance assurance applications. We have no control over HMRC processing times.

9.5 You remain solely responsible for the accuracy and completeness of all information provided, and for ensuring the company continues to meet all qualifying conditions throughout the compliance period. Any loss of, or failure to obtain, tax relief or qualifying status that results from HMRC's decision or from matters outside our control is not something for which we are responsible.

10. Limitation of liability

10.1 Nothing in these terms limits or excludes our liability for: (a) death or personal injury caused by our negligence; (b) fraud or fraudulent misrepresentation; or (c) any other liability that cannot lawfully be limited or excluded.

10.2 Subject to clause 10.1, we are not liable, whether the liability arises in contract, tort (including negligence), breach of statutory duty or otherwise, for any of the following, whether direct, indirect or consequential: (a) loss of profits, revenue, business or anticipated savings; (b) loss of, or failure to obtain, any tax relief, tax advantage or SEIS/EIS qualifying status, where that loss or failure results from HMRC's decision or from any matter outside our control; or (c) any indirect or consequential loss.

10.3 Subject to clauses 10.1 and 10.2, our total aggregate liability arising out of or in connection with each service we provide, whether in contract, tort (including negligence), breach of statutory duty or otherwise, is limited to the total fees you paid to us for that service.

10.4 The limitations and exclusions in this section reflect: the level of the fees; the fact that the outcome of an HMRC application is determined by HMRC and not by us; the availability to you of your own professional advisers and your own insurance; and the allocation of risk the parties consider reasonable in the circumstances. You should maintain your own arrangements for any loss that could exceed these limits.

11. Misrepresentation

11.1 Nothing in these terms excludes or limits our liability for fraudulent misrepresentation. Any other liability for misrepresentation is subject to, and limited by, section 10, to the extent permitted by section 3 of the Misrepresentation Act 1967.

12. Intellectual property

12.1 The Seisly platform, including its design, software, and content, is owned by Litigo Limited. You may not copy, reproduce, or distribute any part of it without our written permission.

12.2 Documents we generate for your application belong to you once paid for and submitted.

13. Governing law and jurisdiction

13.1 These terms, and any dispute arising out of or in connection with them (including non-contractual disputes), are governed by the law of England and Wales. The courts of England and Wales have exclusive jurisdiction over any such dispute.

14. Changes to these terms

14.1 We may update these terms from time to time. We will notify you of material changes by email, and continued use of Seisly after changes take effect constitutes acceptance of the revised terms.

14.2 A change to these terms does not remove a right you had already acquired on an order placed before the change took effect. The terms that apply to a given order are those in force when that order was placed.

15. Contact

15.1 For refunds, cancellations or queries about these terms: support@seisly.com, quoting your order reference. For general enquiries: hello@seisly.com.

Litigo Limited, 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ.