Companies House,
on time.
We prepare and file your annual accounts with Companies House. Full accounts or micro-entity, depending on your size.
Annual AccountsFiled · Companies House
Taxes,
on time and stress-free.
VAT, Corporate Tax, Confirmation Statement, franchise tax. On the PRO plan (or by quote) we prepare and file them; you just sign when we tell you.
Your whole business online,
in one monthly fee.
Taxes watches over your company's obligations within your plan; preparation and filing go with the PRO plan or by quote.
Everything you get,
from day one.
Compliance calendar
Every deadline, watched.
Your company has a compliance calendar with its real dates: annual accounts, CT600 and Confirmation Statement in the UK, or Franchise Tax and Form 5472 in Delaware.
We alert you before every date so nothing catches you by surprise.
Demo
Annual accounts
CT600
VAT Q2
Document preparation
Your numbers, ready on time.
We prepare your annual accounts and Corporate Tax directly from the documentation you organise in Books, without asking for your papers twice.
Official preparation and filing go with the PRO plan or by quote.
Demo
Booksyour documents
Taxesyour filings
With your plan
Clearly defined and no surprises.
What each plan covers is always in plain sight: what is included, what goes with PRO and the official fees payable by you.
Filings with PRO
Annual accounts, CT600 and Confirmation Statement prepared and filed with the PRO plan, or under a tailored quote.
VAT and Franchise Tax
Depending on your jurisdiction: quarterly VAT in the UK or annual Franchise Tax in Delaware. You pay the official fees directly to the authority.
Alerts before every date
We alert you ahead of every deadline so you can sign in time, with no last-minute scares.
All your tax obligations,
covered.
Swipe to see each filing. Tap + for details on deadlines and process.
Companies House,
CT600 filed
with HMRC.
UK corporation tax calculated from your Books P&L. Filed electronically with HMRC on time.
CT600 filed with HMRC
Quarterly VAT,
no reminders needed.
If your company crosses the VAT threshold or registers voluntarily, we file your quarterly returns automatically.
Company records
up to date.
A mandatory annual update to Companies House confirming directors, shareholders and registered address. You'll never miss it.
Up to date ✓
Delaware DE,
compliant.
For Delaware LLCs and C-Corps, the annual franchise tax is mandatory. We calculate it, pay it, and file the annual report.
Franchise Tax
Alert
Payment
A real human,
looking out for you.
Your dedicated tax advisor reviews everything before filing, and looks for legitimate ways to optimize your taxes.
Can I deduct my laptop?
Yes — I'll explain it in the chat ✓
Key detail
What's included
Tax deadlines,
under control.
A calendar with your critical dates, estimates of amounts due, and auto-filled CT600, VAT and Franchise Tax forms. Your advisor reviews them and you sign digitally. No last-minute surprises.
the tax calendar mail for your company.
Click any return to see its status, breakdown, and which Books documents make it up. Your advisor prepares them, you just approve.
app.aiden.es/taxes
DEMO
Next return
VAT Q4 · 31 Jan
Filed YTD
3 / 4
Documents in Books
147
Click any return to see its breakdown.
Selected return
—
—
Overview
Period—
Due date—
Documents in Books—
Assigned advisorSara M. (Aiden)
Financial breakdown
Sales (output VAT)—
Purchases (input VAT)—
VAT payable—
📊 Built from your Books data
The — documents from the period (invoices issued with Aiden Pay + expense invoices categorized by Lunnar) automatically generate this return. No Excel required.
Taxes kicks in
the moment you form your company.
When you form your company with Aiden Startup, Taxes starts monitoring deadlines from day one. Filings (annual accounts, Confirmation Statement, CT600) come with the PRO plan or can be ordered separately by quote.
The intelligence of Aiden,
working with you.
Builds your website with you watching. You tell it what you do and it puts together a first version. From there you change it by talking, not by touching code.
About Taxes,
in detail.
What is the difference between Books and Taxes?
Books is your financial archive: you upload invoices and documents and they stay organised and searchable. Taxes is the preparation and filing of tax obligations (annual accounts, corporation tax, VAT…), available on the PRO plan or by quote. They complement each other: paperwork organised in Books makes any filing easier.
Does Taxes file taxes automatically, or does it just prepare the documents?
It files them electronically with HMRC (UK) or the Delaware Division of Corps and the IRS (US). You just approve with your digital signature before we submit. We never file without your final approval.
What happens if I miss a deadline?
You won't miss deadlines with Taxes. We monitor every deadline and notify you weeks in advance. If you still ignore the alerts and miss a deadline, we handle the penalty with HMRC/IRS and adjust the process.
Does Taxes include filing corporate tax?
Yes. For the UK, we file the CT600 with HMRC within the 12-month deadline. For a Delaware C-Corp, we file the federal tax return (Form 1120). For a Delaware LLC, it depends on the tax election (single-member disregarded, multi-member partnership, etc.) — we advise you on this during formation.
What if I register for VAT voluntarily before reaching the threshold?
We handle it either way. On the initial call, we advise you on whether it's worth registering voluntarily (for example, to reclaim VAT on initial expenses). If you decide to register, Taxes starts filing quarterly.
Does Taxes support companies operating in multiple countries?
Yes, with a Pro plan. If your UK LTD invoices in the EU under OSS, or your Delaware LLC has a permanent establishment in another US state, we handle it. For very complex cases (multiple active jurisdictions, international holdings), we may need to work with specific local advisors.
Does Taxes also file my personal income tax return in Spain?
No. Taxes only handles the company's tax obligations in the UK or the US. For your personal income tax in Spain, you can work with a Spanish advisor. We'll provide any documents they need (dividends paid out, salary received, etc.).
What happens if Hacienda/HMRC/IRS audits me?
Your tax advisor handles the communication directly. We prepare all the requested documentation from the files we already have in Books. In the vast majority of cases, it's resolved without escalating. If it does escalate, we connect you with a specialized tax lawyer (at an additional cost).
Taxes up to date,
mind at ease.
Taxes is available on the PRO plan or by quote. Deadlines monitored, filings handled by our team, an advisor one chat away.
In the words of our founders
What follows are not client testimonials: they are hypothetical examples of situations we commonly handle, using the real terms of the offer.
Coming from Stripe Atlas
Hypothetical example
A founder forms their LLC with Atlas and finds that annual compliance is on them. With Aiden, management, the dashboard and the Spanish-speaking advisor are part of the subscription; official fees are paid separately.
Operating fast in the UK
Hypothetical example
Companies House incorporation and Wise Business account managed end to end: the whole process is completed online, with no travel.
100%
process completed online
Documents up to date with Books
Hypothetical example
Invoices and documents are uploaded and organised in Aiden Books through the year, and at year end everything is easy to find to prepare the accounts.
Migrating an existing LLC
Hypothetical example
An LLC formed with another provider moves to Aiden: paperwork is brought up to date and state maintenance resumes from the dashboard.
Validating without a Spanish SL
Hypothetical example
To validate a project without the fixed costs of starting a Spanish SL with an accountant, a UK Limited with Aiden runs from €19.99/month plus official fees.
Questions for the advisor
Hypothetical example
Legal and tax questions are handled by the advisor over WhatsApp; on the PRO plan, with a response SLA under 2 business hours.
<2h
WhatsApp SLA · PRO plan
Getting paid with Aiden Pay
Hypothetical example
Client payments run on Stripe from the dashboard: Aiden adds no fee of its own — you only pay the payment provider's fee.
0%
fee added by Aiden
Incorporating from Latin America
Hypothetical example
From Argentina or Mexico, incorporation in the UK or Delaware is 100% remote, with no travel or physical presence, guided from the dashboard.
Hypothetical examples: these are not testimonials or reviews from real clients. The terms quoted (timelines, SLAs, prices) are those of the current published offer.
Start today · no lock-in
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Compliant with GDPR
Payments by Stripe
We file with Companies House
Support in Spanish
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