Compare all plans
Log in
Terms of service

What each plan covers, what it isn't doesn't, and why.

A legally binding document that defines the scope of the Aiden Startup service for each jurisdiction and plan combination. Read only the section that applies to your plan — or the one you're evaluating before signing up.

Version: 1.0 Updated: 20 May 2026 Entity: Aiden Technologies Ltd Company: 14561220
Standard Plan · UK

Aiden Startup · Standard UK

Jurisdiction: United Kingdom (LTD)
Price: $21.99/month (monthly subscription) Setup: Setup fee $219 (one-off payment on sign-up) SLA: <24 business hours · chat and email

Base plan for founders forming a Limited Company in England and Wales: formation, a registered address in London while the plan is active and Aiden Books to organise paperwork. Official filings are ordered with the PRO plan or separately by quote.

Company formation

  • Registration of the LTD with Companies House (England and Wales)
  • Standard Memorandum and Articles of Association
  • Issuance of the digital Certificate of Incorporation
  • Opening of the PSC Register (Persons with Significant Control)
  • Official Companies House digital incorporation fee (currently £100) included in the setup fee

Plan maintenance

  • Registered Office in London maintained while the plan is active
  • Service Address for directors and PSCs
  • Automatic deadline reminders via the dashboard and email

Aiden Books · document organisation

  • Aiden Books · upload and organisation of company invoices and documents
  • Aiden Books is NOT an accounting or filings service

🚨 Filings NOT included in Standard · separately by quote or on the PRO plan

  • Preparation and filing of Annual Accounts (Companies House)
  • Filing of the Confirmation Statement
  • Filing of the Corporation Tax Return (CT600) with HMRC
  • VAT returns

Banking, address and communications

  • Guidance to apply for a business bank account (approval is up to the provider)
  • Full bank-application handling by Aiden · optional service: €129
  • Receipt and digitisation of official correspondence (HMRC, Companies House)
  • Real-time notifications to the client's dashboard

Support

  • Dedicated advisor by chat and email · response <24h business hours
  • Access to the knowledge base (support.aiden.es)
  • Notifications of tax and corporate deadlines

Official fees paid directly by the client

Aiden calculates them, prepares the filing and issues reminders, but the amount is paid by the client directly to the relevant authority:

  • Confirmation Statement fee — Companies House · actualmente £50/year (presentación digital), sujeta a cambios · siempre a cargo del cliente (Standard y PRO)
  • Corporation Tax paid to HMRC (depends on profit · 19-25%)
  • VAT collected and paid to HMRC
  • PAYE / National Insurance if you have employees
  • Corporate change fees (Companies House filing fees)

Professional services NOT included

Available as optional or external services:

  • Personal Spanish tax advice (IRPF) · on quote
  • UK contract legal advice · PRO plan or on quote
  • Salary vs dividend tax optimisation · PRO plan
  • Complex HMRC inspections · initial coordination included, full handling on quote
  • Litigation or court representation · not provided, referred to an external law firm
  • Mandatory financial audit (large companies) · not provided
PRO Plan · UK · Most chosen

Aiden Startup · PRO UK

Jurisdiction: United Kingdom (LTD)
Price: $99/month (monthly subscription) Setup: Setup fee $219 (one-off payment on sign-up) SLA: <2 business hours · priority WhatsApp

Professional plan for founders with active operations. Adds proactive tax advice, contract legal advice, multi-user access and priority support. Designed for teams that are already invoicing and need optimisation.

Everything in the Standard plan, plus:

  • Preparation and filing of Annual Accounts with Companies House
  • Confirmation Statement filing included (the official Companies House fee —currently £50 for digital filing— is paid separately by the customer)
  • Filing of the Corporation Tax Return (CT600) with HMRC
  • Multi-user dashboard access (teams · permissions per section and action)
  • Proactive tax optimisation (optimal dividend vs salary split)
  • Analysis and filing of R&D Tax Credits where applicable
  • Legal advice · review and drafting of commercial contracts, standard NDAs, website terms of service
  • Quarterly calls with a tax advisor (45 min · prepared agenda)
  • Priority WhatsApp · SLA <2h business hours
  • Initial coordination in the event of an HMRC inspection · full handling quoted according to complexity

Official fees paid by the client

  • Corporation Tax (HMRC · 19-25% of profit)
  • VAT collected
  • PAYE / NI for employees
  • Major corporate change fees (change of jurisdiction, complex share split)

Services on quote (not included)

  • Personal Spanish IRPF tax advice
  • Litigation or court representation UK
  • Mandatory financial audit
  • Complex international holding structures
  • Specialised contracts (M&A, due diligence, fundraising legal)
Standard Plan · Delaware

Aiden Startup · Standard Delaware LLC

Jurisdiction: Delaware (LLC)
Price: $32.99/month (monthly subscription) Setup: Setup fee $197 (one-off payment on sign-up) SLA: <24 business hours · chat and email

Base plan for Spanish founders forming an LLC in Delaware (the most widely used state for US companies). Covers formation, registered office address, registered agent and ongoing corporate maintenance. Annual federal IRS filings are contracted separately given their specialised nature.

Company formation

  • Registration of the LLC with the Delaware Division of Corporations
  • Certificate of Formation issued
  • Standard Operating Agreement (single-member or basic multi-member)
  • Official Delaware Division of Corporations domestic LLC formation fee (currently $110) included in the setup fee

Annual corporate maintenance

  • Registered Agent in Wilmington, DE (mandatory under state law)
  • Calculation of the Franchise Tax ($300/year fixed for LLC, authorised shares formula for C-Corp)
  • Handling of the annual Franchise Tax payment with the Delaware Division of Corporations (the fee is paid by the client)
  • Annual Report: only applies to corporations (C-Corp); if yours is one, we prepare and file it together with the Franchise Tax
  • Automatic deadline reminders (1 June annually)
  • Maintenance of your "good standing" certificate

Bookkeeping and banking

  • Aiden Books · upload and organisation of invoices and documents (not an accounting service)
  • Receipt and digitisation of official correspondence (IRS, Delaware, registered agent)

Support

  • Dedicated advisor · chat and email · <24h business hours
  • Deadline notifications in the dashboard
  • Access to the help centre (support.aiden.es)

🚨 Mandatory official fees · paid directly by the client

Aiden calculates them, files them and gives advance notice. The official amount is paid by the client directly to the authority. This is not an Aiden fee — it is a mandatory state tax/fee:

  • Delaware Franchise Tax: $300/year for LLC (due 1 June)
  • Franchise Tax for C-Corps · variable calculation based on authorised shares or assumed par value
  • Major corporate change fees (LLC → C-Corp conversion, etc.)
  • Late penalties if the client ignores the reminders (Aiden is not liable for these penalties)

🚨 Annual federal IRS filings · separate service

Given their annual, specialised nature and signature under penalty of perjury, federal filings are NOT included in the monthly subscription. They are contracted as Aiden Tax Filing, an independent service with its own pricing:

  • Form 5472 + Form 1120 pro forma · mandatory for all foreign-owned single-member LLCs. Penalty for non-filing: USD 25,000. Aiden Tax Filing
  • Form 1065 · mandatory for multi-member partnership LLCs. Aiden Tax Filing
  • Form 1120 with tax liability · for profitable C-Corps. Aiden Tax Filing
  • Schedule K-1 for partners of multi-member LLCs
  • State income tax returns if the company has nexus in other states (CA, NY, TX, etc.)

Professional services NOT included

Available on quote or as external services:

  • Personal IRPF tax advice in Spain
  • Advanced tax election (S-Corp, conversion to C-Corp) · available on the PRO plan
  • Customised multi-member Operating Agreement · available on the PRO plan
  • IRS inspections or federal audits · initial coordination included; full handling on quote
  • Litigation or court representation · referred to an external law firm
  • Sector-specific permits, state or municipal licences
PRO Plan · Delaware · Most chosen

Aiden Startup · PRO Delaware

Jurisdiction: Delaware (LLC · C-Corp)
Price: $99/month (monthly subscription) Setup: Setup fee $299 (one-off payment on sign-up) SLA: <2 business hours · priority WhatsApp

Professional plan for founders seeking to raise with American VCs or with complex operations. Adds US legal advice, a customised Operating Agreement, cap table tracking and priority support. Ideal for C-Corps or multi-member LLCs with partners.

Everything in the Standard LLC plan, plus:

  • Obtaining the EIN (Employer Identification Number) from the IRS
  • Pre-approved opening of a Mercury Bank account
  • Multi-user dashboard access (teams · co-founders, accountant, assistant, advisors)
  • Advanced tax election (S-Corp election, LLC → C-Corp conversion)
  • Customised multi-member Operating Agreement · vesting, cap table, drag-along and tag-along clauses
  • Initial cap table and ongoing tracking in the dashboard
  • Fundraising preparation · basic data room (Articles, Operating Agreement, EIN, financials)
  • Legal advice · review of US contracts, NDAs, SAFEs, term sheets
  • Quarterly calls with a US tax advisor (45 min · prior preparation)
  • Priority WhatsApp · SLA <2h business hours
  • Initial coordination in the event of an IRS inspection (full handling quoted according to complexity)
  • Access to a network of Spanish tax advisors for global IRPF

🚨 Mandatory official fees · paid directly by the client

On the PRO plan Aiden manages and files, but the official amount remains the client's responsibility:

  • Delaware Franchise Tax: $300/year LLC; authorised shares formula for C-Corp
  • Other state taxes if the company has nexus (California $800, New York franchise tax, Texas franchise tax, etc.)
  • Major corporate change fees (conversion, redomestication, complex share issuance)

🚨 Annual federal IRS filings · Aiden Tax Filing service

As with the Standard plan, annual federal filings are NOT included in the PRO plan's monthly subscription. They are contracted as Aiden Tax Filing given their annual and specialised nature. The reason is that each filing requires specific preparation, signature under penalty of perjury and potential handling with the IRS — it is not a recurring monthly task but an annual project.

  • Form 5472 + Form 1120 pro forma · foreign-owned single-member LLC · Aiden Tax Filing
  • Form 1065 + Schedule K-1 · multi-member partnership LLC · Aiden Tax Filing
  • Form 1120 with tax liability · profitable C-Corps · Aiden Tax Filing
  • Multi-state income tax returns · Aiden Tax Filing
  • Form W-8BEN-E and other non-resident alien filings where applicable

Services NOT included (even in PRO)

  • Personal Spanish IRPF tax advice · on quote or external
  • Full handling of IRS inspections · initial coordination only; full handling quoted separately
  • Federal or state litigation · referred to an external law firm
  • Financial audits (Big 4 or similar) · referred to an external auditor
  • Sector-specific permits (broker-dealer licences, banking licence, healthcare, etc.)
  • Complex international tax structuring (more than 2 active jurisdictions)
  • Defence against IP claims or IP litigation

General terms of service

Key definitions

"Client": an individual or legal entity that engages Aiden Startup by signing up at aidenstartup.com.

"Aiden": Aiden Technologies Ltd, an English company with company number 14561220 and registered office at Kemp House, 128 City Road, London EC1V 2NX.

"Subscription": the monthly plan taken out by the client. It covers the services described above in the "included" section of the plan chosen.

"Official fee": amount paid to a government body (Companies House, Delaware Division of Corporations, IRS, HMRC, etc.) for mandatory filings or registrations. It is not an Aiden fee. Aiden calculates, files and notifies the client about them, but payment is made by the client directly to the relevant authority. Currently no plan includes or advances official fees, and their amounts may change (e.g. the digital Confirmation Statement fee is now £50/year).

"Aiden Tax Filing": a separate service for preparing and filing annual IRS returns (Form 5472, 1065, 1120) for Delaware companies. It is purchased separately from the monthly subscription due to its annual, specialised nature and the added legal liability involved (signed under penalty of perjury).

Onboarding process

Once the client signs up, they get access to the dashboard and the identification process (KYC) begins. Company formation starts once all required documentation has been received and verified. The timeframes stated for each plan (for example, 5-10 days for Delaware or 24-72h for the UK) run from the complete receipt of the documentation, not from the sign-up date, and depend on the timelines of the relevant authorities and institutions involved.

Service level agreements (SLA)

The response times stated for each plan (for example, <24h on Standard, <2h on PRO) refer to business hours (Monday to Friday, excluding public holidays) and to the first response, not full resolution, which will depend on the complexity of each case. SLAs do not apply to requests that require input from third parties (government bodies, banks).

Responsibility for deadlines and notices

Aiden monitors the corporate and tax deadlines under the client's plan and notifies the client in advance via the dashboard and by email. It is the client's responsibility to: keep a valid email address, review notifications, pay any official fees due on time, and sign up for complementary services (such as Aiden Tax Filing) when needed. Aiden is not liable for penalties arising from the client ignoring notices or failing to pay a fee on time.

Plan changes

The client can upgrade from Standard to PRO at any time; new features are activated immediately and billing is adjusted to the new amount in the next cycle. Downgrading from PRO to Standard takes effect at the end of the current billing period and means losing PRO-exclusive features (an EIN already obtained is kept, but multi-user access, legal advice and other extras are no longer available).

Term and commitment

Standard and PRO plans have no minimum commitment. The client can cancel at any time from the dashboard or by requesting it from their advisor. Cancellation takes effect at the end of the current billing period (month or year, depending on the frequency chosen). No pro-rata refunds are given, except in the exceptional cases provided for under applicable consumer law. Set-up fees and work already carried out (such as a company formation already filed) are non-refundable.

What happens after cancellation

Once cancelled, the service remains active until the end of the paid period. From that date, the client takes on the ongoing corporate maintenance of their company directly (registered office, registered agent, annual filings) or must arrange it with another provider. Aiden will retain the client's documentation for the legally required periods and make it available in line with the Privacy Policy.

Changes to the service

Aiden reserves the right to update the features included in each plan, as well as its pricing, giving the client at least 30 days' notice. Changes that improve or expand the service take effect automatically. Changes that reduce the scope of the service or increase the price entitle the client to cancel without penalty within 30 days of being notified.

Data protection

The processing of the client's personal data is governed by the Privacy Policy. The client may exercise their rights of access, rectification, erasure and other GDPR rights by writing to support@aiden.es.

Limitation of liability

Aiden acts as an administrative manager and provider of professional services relating to corporate and accounting matters. Aiden is not responsible for the client's investment decisions, operating losses, or penalties arising from events not attributable to Aiden (e.g. the client ignoring deadline alerts and failing to pay an official fee on time). Aiden's maximum liability to the client is limited to the amount paid by the client in the 12 months prior to the event giving rise to the claim, except in cases of wilful misconduct or gross negligence.

Relationship with the general Terms and Conditions

This document sets out the scope of each plan and complements the general Terms and Conditions. In the event of any discrepancy regarding the scope of a plan, this document shall prevail; for all other contractual terms, the general Terms and Conditions shall prevail.

Dispute resolution

These terms are governed by the law of England and Wales. Disputes will preferably be resolved through direct negotiation. Failing that, they will be submitted to the courts of London, except where consumer protection law applicable to the client grants additional rights (for example, jurisdiction of the consumer's place of residence within the European Union).

Not sure what your plan covers?

Before you sign up or renew, we'll clear up anything you're unsure about. No obligation, no pressure.

Talk to the team →