User Agreement

01These terms and who we are

The service at filefast.co.uk is operated by Syncs App Ltd, a company registered in England and Wales under number 15902605 with its registered office at 483 Green Lanes, London, England, N13 4BS ("we", "us", "our"). "You" means the person using the service and, where that person acts for a company, the company as well.

This agreement is formed when you create an account or first use the service, whichever happens earlier. How we handle personal data is covered separately by our Privacy Policy.

02The service

The service is software for preparing a UK Corporation Tax return — the CT600 with iXBRL-tagged accounts and computations — and submitting it to HM Revenue & Customs through HMRC's Corporation Tax online service.

We may add, change or retire features over time. Anything that materially reduces what you have already paid for is handled under the section on changes below.

03Software, not advice

We are a software provider, not an accountancy or law firm. Nothing in the service — including automated checks, prompts, calculated figures and explanatory text — is tax, accounting or legal advice, and none of it creates an adviser–client relationship.

The service's checks are limited to format, consistency and the validation rules HMRC publishes. They do not verify that your underlying figures are right. If your company's affairs are complex or you are unsure about a position, take advice from a regulated professional before filing.

04Your account and eligibility

• You must be at least 18 and authorised to act for the company whose return you prepare.
• The information you register with must be accurate and kept up to date.
• Your credentials are yours: keep them secure, do not share them, and tell us promptly if you believe your account has been compromised.
• You are responsible for everything done under your account until you tell us otherwise.

05Your responsibilities

A Corporation Tax return is the company’s legal declaration to HMRC, and using software to prepare it does not move that responsibility. In particular:

• you are responsible for the accuracy and completeness of every figure and document you provide;
• you must review the return and confirm it is correct before submitting — the declaration made to HMRC on submission is made by the company, not by us;
• filing deadlines, payment of tax, and any penalties or interest remain the company’s responsibility;
• you must keep the accounting records the law requires the company to keep, independently of the service.

06Our responsibilities

• We provide the service with reasonable skill and care.
• We transmit to HMRC exactly what you reviewed and approved — nothing is filed without your confirmation.
• We keep HMRC submission receipts available in your account.
• We do not audit, verify or take responsibility for the figures you supply.

07Fees, payment and refunds

The service charges a fee per submitted return. The price, and any tax on it, is shown before you pay, and payment is taken before submission to HMRC.

• If a fault in the service prevents your return from being submitted, we will fix the fault or refund the fee for that return.
• Once HMRC has accepted a return, the fee for it is not refundable.
• Nothing in this section affects rights you have under law that cannot be excluded.

08Acceptable use

You must not:

• use the service for anything unlawful, including knowingly submitting false or misleading information to HMRC;
• attempt to access accounts, data or systems you are not authorised to access;
• interfere with the operation of the service, probe it for vulnerabilities without our written permission, or impose unreasonable load on it;
• resell the service or use it to file returns as a bureau without a separate agreement with us;
• copy, decompile or reverse-engineer the software except where the law allows it despite this clause.

09Your data and intellectual property

Your data stays yours. You grant us a licence to host and process it only as needed to provide the service, and we handle personal data as described in the Privacy Policy.

The software, its design and the brand are ours or our licensors’. Using the service gives you no rights in them beyond using the service itself. If you send us feedback, we may use it without obligation to you.

10Service availability

We aim to keep the service available around the clock but do not guarantee uninterrupted operation: maintenance, faults and events outside our control happen. Submission also depends on HMRC’s online service, whose availability is outside our control.

Filing close to a deadline is at your risk. If HMRC’s systems or the service are unavailable at the moment you choose to file, that does not extend the statutory deadline.

11Liability

Nothing in this agreement excludes liability for death or personal injury caused by negligence, for fraud, or for anything else that cannot lawfully be excluded. Subject to that:

• we are not liable for indirect or consequential loss, loss of profit, or loss of data caused by events outside our reasonable control;
• we are not liable for penalties, interest or additional tax arising from information you supplied, from your failure to review a return, or from missed deadlines;
• our total liability under this agreement is limited to the fees you paid us in the twelve months before the event giving rise to the claim.

12Suspension and termination

You can stop using the service and close your account at any time. We can suspend or close your account if you materially breach this agreement, use the service unlawfully, or your use puts the service or other users at risk — where practical, we will warn you first.

After closure, your data is handled according to the retention terms of the Privacy Policy. Sections of this agreement that by their nature should survive — including liability and governing law — survive.

13Changes to the service or these terms

We may amend this agreement. For material changes we will give you reasonable notice by email or in the service before they take effect. Continuing to use the service after that date means you accept the new terms; if you do not, stop using the service and close your account.

14General

• This agreement and the Privacy Policy are the entire agreement between us about the service.
• If any part of it turns out to be unenforceable, the rest stays in force.
• Not enforcing a right straight away does not waive it.
• You may not transfer this agreement without our consent; we may transfer it to a successor of the business, with your protections intact.
• No one other than you and us has rights under this agreement (Contracts (Rights of Third Parties) Act 1999).

15Governing law

This agreement is governed by the law of England and Wales, and the courts of England and Wales have exclusive jurisdiction over disputes arising from it.

16Contact

Questions about this agreement go to syncs.bio@gmail.com.